Seeds: When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from purchase.
Non-seed products: Free from defects in materials and workmanship for 30 days from shipment.
Excludes factors outside our control (extreme weather, pests, gardener error). If something’s off, contact us—we’ll make it right with a replacement, repair, or refund.
USDA “bioengineered (BE)” foods are those with detectable genetic material that was modified using in vitro recombinant DNA (rDNA) techniques, in ways
not obtainable through conventional breeding or found in nature. The USDA’s National Bioengineered Food Disclosure Standard uses “bioengineered” as the nationwide labeling term.
Detectable modified genetic material in the final food
Created via in vitro rDNA techniques (e.g., gene transfer)
Modifications not achievable through conventional breeding or nature
—seeds / pkt
( ~ g )
Description
The improved classic—uniform, productive, and disease-tough. California Wonder 300 TMR is a refined selection of the famous bell, bred for dependable sets, blockier 3–4-lobed fruit, and TMV resistance (TMR)—all with zero heat (0 SHU) and true bell sweetness. Harvest green for crisp, grassy-sweet flavor or let pods finish deep red for maximum sugar and vitamin C.
Plants are sturdy and compact, typically 18–24 inches tall with a tidy, upright habit suited to beds or large containers. Dark foliage shelters thick-walled bells about 3–4 inches across, with smooth shoulders and a uniform blocky shape that holds up beautifully when stuffed or roasted. The improved line offers reliable fruit set across a range of conditions.
In the kitchen, Cal Wonder 300 TMR does it all: fresh for salads and crudités, stuffed (walls stay firm), roasted or grilled for sandwiches and pastas, and diced for freezing without turning watery. After blistering, skins peel cleanly for jars of marinated peppers; red-stage fruit bring full, sweet bell flavor.
Selected for uniformity, yield, and disease resistance, California Wonder 300 TMR makes bell success straightforward for home gardeners and market growers alike. Provide full sun, steady moisture, and moderate feeding for continuous sets; harvest green for volume or let clusters color for peak sweetness and plate appeal.
Add content in product metafield custom.planting_care_information.
How To Grow — California Wonder 300 TMR Pepper (Capsicum annuum)
Site and Light
Full sun, 6 to 8 hours daily for best color and sweetness
In very hot regions, provide gentle afternoon shade to prevent sunscald and keep skins tender
Soil and Fertility
Loose, well drained loam with high organic matter, pH 6.2 to 6.8
Incorporate finished compost before the season for steady nutrition
Keep nitrogen moderate once plants are established so flowering and coloring stay on schedule
Note on TMR: This selection has tobacco mosaic resistance, but garden hygiene still matters. Wash hands before handling plants and avoid contamination from tobacco products
Spacing and Support
Space 18 to 24 inches between plants and 24 to 30 inches between rows
Use a compact cage or low ring stake. Blocky fruit can weigh down laterals as pods size and ripen
Watering and Mulch
Maintain even moisture from first bloom through harvest to prevent leathery skins and blossom end problems
Water deeply so the full root zone is moistened, then allow the top inch to dry slightly before the next irrigation
Apply 2 to 3 inches of clean straw or shredded leaves to stabilize soil temperature and reduce evaporation
Feeding in Season
Begin light, regular feeding at first flowers with a balanced program that emphasizes potassium and calcium
Avoid heavy nitrogen once fruiting begins. Excess foliage delays bloom, slows coloring, and can dilute sweetness
Temperature and Season Management
Best performance with days 70 to 85°F and nights 60 to 70°F
Blossom shed increases above 95°F or when nights dip below 55°F
During heat waves use 30 to 40 percent shade cloth and keep moisture steady. In cool snaps, a light row cover protects set and speeds coloring
Black mulch or warmed beds help early vigor in cooler regions
Pruning, Airflow and Pollination
Lightly thin dense interior foliage to improve airflow. Do not hard prune
Remove damaged or diseased leaves promptly to reduce pest harborage
Flowers are self fertile. Interplant small flowering herbs like basil and alyssum to encourage pollinators and improve set
Containers
High quality potting mix with added perlite or bark for drainage and air space
Container size of 7 gallons is a strong minimum for full size bells. Larger volumes improve wall thickness and uniform ripening
Check moisture often in hot weather and water until slight runoff. Feed lightly every 10 to 14 days once flowering begins
Common Issues and Integrated Pest Management
Blossom end problems usually trace to uneven moisture or low calcium availability. Keep watering consistent and avoid heavy ammoniacal nitrogen
Aphids, thrips, mites can be discouraged by nearby blooms that attract hoverflies and parasitic wasps. Spot treat with insecticidal soap or horticultural oil in evening hours
Sunscald on exposed fruit at canopy edges during heat spikes. Preserve a modest leaf canopy and add brief afternoon shade if needed
Virus hygiene despite TMR resistance. Disinfect pruners, avoid handling after tobacco use, and remove any suspicious foliage promptly
Harvest and Postharvest
Pick at glossy green for firm texture and classic stuffed pepper use, or allow to color fully red for peak sweetness and thicker walls
Cut with snips and leave a short stem to protect fruiting nodes
Rest harvested pods in shade 2 to 3 days to stabilize color and sugars before refrigeration
Additional Tips — California Wonder 300 TMR Pepper (Capsicum annuum)
Harvesting
Stage options: Harvest at glossy green for sturdy walls and mild, grassy crunch ideal for stuffing and sauté, or allow pods to mature to full red for peak sweetness and rich bell aroma with thicker flesh.
Clean cuts: Use fine-tip pruners to clip pods with a short stem. Pulling can tear the pedicel and stress flower nodes, which slows subsequent set.
Batch strategy: For stuffed pepper batches and roasted strips, plan one or two concentrated red harvests. For daily salads and lunch prep, pick steadily as pods size and color, which also signals the plant to keep flowering.
Shade cure: After picking, rest peppers in a single layer, shaded and airy, 2 to 4 days to deepen color, stabilize sugars, and firm skins before refrigeration or processing.
Flavor & Nutrition
Profile: Green stage is crisp with light bitterness and cucumber notes. Red stage is honey-sweet, juicy, and full bodied with very low bitterness.
Nutrient notes: Vitamin C, beta carotene, and other carotenoids increase significantly as pods turn red, raising both sweetness and antioxidant capacity.
Kitchen sweetness control: Leave ribs and seeds intact when roasting to capture juices and maximum sweetness. For tighter texture in raw salads or salsas, deseed and remove ribs to reduce moisture bleed.
Handling
Mild and safe: Gloves not required. Wash hands before touching eyes to avoid mild irritation from plant oils.
Clean transitions: Wash knives and boards in hot soapy water followed by a splash of vinegar to remove residual oils before cutting fruit or cheese.
Storage & Preservation
Fresh hold: Refrigerate unwashed in a paper lined container with lid slightly ajar to manage humidity. Greens hold 7 to 10 days. Fully red pods are sweeter but softer, best within a week.
Roasting and peeling: Broil or grill until blistered, steam under a bowl 10 minutes, peel, then slice. Marinate with olive oil, garlic, and parsley for antipasto, sandwiches, and grain bowls.
Stuffing: Thick, blocky cavities suit rice, grains, beans, or cheese. Par bake shells a few minutes for even tenderness.
Pickling: Slice into rings for quick brines with garlic and mustard seed. Red rings add color and gentle sweetness to sandwiches and salads.
Relish and jam: Simmer fine diced red bells with onion, vinegar, and a light syrup for a sweet spread that pairs with cheeses and grilled meats.
Dehydrating: Slice into strips or dice and dry at 115 to 120°F. Store whole, then grind just before use for a sweet pepper powder.
Freezing: Dice or slice, freeze flat on trays, then bag for easy handfuls in soups, stews, pasta, eggs, and stir fries.
Kitchen Use
Everyday uses: Raw for salads, wraps, and crudités. Red strips brighten hummus plates and charcuterie.
Cooking: Classic stuffed peppers, shakshuka, fajitas, roasted pepper sauces, sheet pan roasts with onions and sausage, pizzas, and omelets.
Flavor pairings: Basil, oregano, parsley, thyme, lemon, balsamic, olive oil, garlic, scallion, mozzarella, feta, chickpeas, sausage, poultry, and white fish.
Growing & Pruning Tips
TMR trait focus: The 300 TMR selection is known for tobacco mosaic resistance, helpful in gardens where virus pressure exists, but still practice hygiene, remove suspect leaves, and avoid smoking residue around plants.
Habit and support: Sturdy, blocky fruits on compact plants. A low cage or ring stake keeps laterals from bending under load.
Sun and airflow: Provide 6 to 8 hours of sun and generous spacing for quick leaf drying. Light tip pinching at 8 to 10 inches encourages branching and heavier fruit set.
Set reliability: Flower set can drop above 95°F or with nights below 55°F. Use 30 to 40 percent shade cloth during heat spikes and keep soil moisture even to reduce blossom shed.
Nutrient balance: Moderate nitrogen early for vegetative growth, then emphasize potassium and calcium during fruiting for thick walls and clean blossom ends. Excess nitrogen favors leaves over fruit.
Containers & Watering
Container size: 7 gallons is a strong minimum for full size bells. Larger volumes improve wall thickness, uniformity, and sustained production.
Moisture: Maintain steady moisture with deep regular watering. Wide dry to soak swings toughen skins, mute sweetness, and invite end issues. Mulch to stabilize root zone temperature.
Fertilizer rhythm: In containers, feed lightly every 10 to 14 days once flowering begins. In beds, side dress with compost midseason and supplement potassium as clusters set.
Companion Planting & Pollinators
Beneficials: Interplant with basil, coriander, dill, and sweet alyssum to entice hoverflies and parasitic wasps that manage aphids and thrips. Small flowers also encourage bee visitation for heavier set.
Row partners: Onions and scallions fit along edges without shading. Avoid fennel nearby since it competes for space and beneficial insect traffic.
Seed Saving
True to type selection: Choose uniform blocky bells with thick, sweet walls that ripen clean green to red. Avoid pointed tips, thin walls, or unusual shapes.
Isolation: Separate from other C. annuum peppers if purity matters. For small gardens, bag several flower clusters with mesh or isolate by distance and barriers.
Dry and store: Ferment or wash seeds free of pulp, then air dry 7 to 10 days until snappy. Bottle with a small desiccant in a cool, dark place. Test viability annually with a simple 10 seed germination check.
Common Pests & Problems — ‘California Wonder 300 TMR’ Bell (Capsicum annuum)
Insects & Mites
Aphids (leaf curling, sticky honeydew/sooty mold)
Controls: Blast colonies with a firm water spray; follow with insecticidal soap or neem at 5–7 day intervals. Break ant trails (they protect aphids). Plant nectar strips (alyssum, dill, yarrow) to recruit lacewings and lady beetles.
Spider mites (fine stippling, bronzing, webbing during hot/dry spells—dense bell canopies hide outbreaks)
Controls: Raise humidity (mulch, dampen paths), hose leaf undersides thoroughly, rotate horticultural oil and neem. Under cover, release Phytoseiulus/Neoseiulus predatory mites early.
Whiteflies (adults flutter when disturbed; honeydew/sooty mold)
Controls: Yellow sticky cards at canopy height; early-morning vacuuming of undersides; repeat soap/neem; remove weedy hosts around beds.
Thrips (silvery scarring, twisted new leaves; virus vectors)
Controls: Blue or yellow cards; strip spent blossoms and weeds; apply spinosad (outdoor label) or insecticidal soap. Avoid mowing flowering weeds during bloom.
Flea beetles (shot-holes on tender spring foliage)
Controls: Lightweight row cover until first flowers; diatomaceous earth rings; radish trap crops. Keep borders tidy and dry.
Cutworms (seedlings severed at soil line)
Controls: 2–3" stem collars; remove plant debris; handpick at dusk where pressure exists.
Caterpillars (fruitworms/armyworms/loopers) (chewed leaves, entry holes in pods—thick bells hide larvae)
Controls: Scout daily; handpick; spray Bt kurstaki on small larvae. Manage grassy margins to reduce moth habitat.
Pepper maggot (regional) (oviposition “stings,” larvae inside pods)
Controls: Harvest frequently to outrun peak fly activity; promptly remove/destroy infested fruit; deploy baited traps per local extension timing.
Pepper weevil / fruit borers (warm regions/greenhouses) (premature fruit drop; internal tunneling)
Controls: Tight sanitation; destroy culls; frequent harvest; consult extension for pheromone traps and thresholds.
Slugs & snails (seedlings, low fruit)
Controls: Iron-phosphate baits; beer traps; copper barriers; pull mulch back 2–3" from stems.
Diseases
Bacterial leaf spot (water-soaked specks → brown lesions; defoliation, blemished bells)
Prevention: Certified/treated seed; rotate 3+ years away from Solanaceae; avoid overhead watering; sanitize stakes/tools.
Management: Remove infected foliage; copper products can protect new growth (follow labels/PHIs).
Anthracnose (ripe pods) (sunken lesions with orange spore masses—thick walls can hide early spots)
Prevention: Mulch to block soil splash; generous spacing; drip irrigation.
Management: Rogue infected fruit immediately; consider protectant fungicides in warm, wet spells.
Phytophthora blight / root rot (sudden wilt, dark crown lesions, fruit rot in saturated soils)
Prevention: Raised beds, excellent drainage; avoid low spots/over-irrigation; do not reuse infected beds in-season.
Management: Pull and discard affected plants; avoid replanting peppers in that site the same season.
Powdery mildew (white coating on leaves late season/under cover)
Prevention: Airflow; moderate nitrogen.
Management: Remove worst leaves; Bacillus-based biofungicides or potassium bicarbonate can suppress.
Verticillium & Fusarium wilts (one-sided wilt/yellowing; vascular browning)
Management: Rotate out of Solanaceae; solarize where feasible; remove plants—no curative treatment in-plant.
Mosaic viruses (CMV/TSWV/TEV) (mottling, puckering, stunting; distorted fruit)
Prevention: Control thrips/aphids; rogue symptomatic plants; sanitize hands/tools; avoid handling tobacco before field work.
Physiological & Environmental Issues
Blossom end rot (dry, sunken black end—visible on blocky bells)
Cause: Calcium delivery failure from irregular moisture/root stress.
Fix: Keep moisture even; mulch; avoid root disturbance; balanced feeding (skip heavy N).
Poor fruit set / misshapen lobes
Cause: Heat >95°F (35°C), nights <60°F (16°C), drought, excess N, low light.
Fix: Light afternoon shade during heat waves; maintain steady irrigation; moderate fertility; ensure good airflow and pollinator access.
Sunscald (white/tan leathery patches on exposed sides of large bells)
Fix: Maintain a healthy canopy; avoid heavy defoliation; use 30–40% shade cloth during extreme heat; harvest promptly as color advances.
Edema / water stress (blisters/corky patches on leaves/pods)
Fix: Regularize irrigation; avoid abrupt wet–dry cycles.
Cracking/splitting (after heavy rain following drought)
Fix: Keep moisture consistent; pick at full green or early color if storms loom.
Flavor dilution
Note: Overwatering and high N mute sweetness; steady, moderate fertility/irrigation improve sugars and bell flavor.
Monitoring & Prevention — Quick Checklist
Scout weekly, including leaf undersides and interior canopy.
Prefer drip/soaker irrigation; if overhead, water mornings only.
Space plants well; prune only problem foliage to retain a protective canopy over fruit.
Mulch after soils warm to stabilize moisture and block splash-borne disease.
Rotate 3+ years away from peppers, tomatoes, eggplants, potatoes.
Sanitize tools; harvest frequently; discard diseased/infested fruit rather than composting
Q: How hot is California Wonder 300 TMR?
Heatless—0 Scoville Heat Units (SHU). Selected for sweetness, thick walls, and dependable blocky shape.
Q: What does “300 TMR” mean?
“300” denotes a uniform, squarer blocky grade; “TMR” indicates Tobacco Mosaic virus resistance, helpful for garden and market reliability.
Q: How long does it take to mature?
Typically 65–80 days from transplant to harvestable green; 75–90 days to full red for maximum sweetness and vitamin C.
Q: How long does germination take?
Expect 7–21 days at 80–85°F (27–29°C) with steady moisture in a fine seed-starting mix. Cooler media slow and reduce germination.
Q: Does it need special soil conditions?
Rich, well-drained loam, pH 6.0–6.8. Maintain a warm root zone (70–85°F / 21–29°C). Mulch once soils warm to steady moisture and limit soil splash.
Q: What spacing should I use?
Set plants 16–18 in (40–45 cm) apart in rows 24–30 in (60–75 cm). This spacing supports airflow and keeps thick-walled fruit clean and sunscald-free.
Q: Do I need more than one plant for pollination?
No. Flowers are self-pollinating. Gentle airflow and visiting pollinators can modestly improve set.
Q: Can I grow California Wonder 300 TMR in containers?
Yes. Use 7–10 gallon pots with excellent drainage and a quality potting mix. A light cage or stake helps carry heavy clusters.
Q: How many peppers will one plant produce?
Commonly 8–20 full-size bells per plant across the season with regular picking and balanced feeding.
Q: How should I harvest them?
Cut with clean pruners, leaving a short stem. Harvest green for earlier yields and crisp texture, or wait for full red for peak sweetness and nutrition. Frequent picking encourages continued flowering.
Q: Best ways to store or preserve?
Refrigerate in a breathable bag for 1–2 weeks. Excellent roasted and peeled for marinated strips, stuffed and baked, or diced and frozen for soups and sautés.
Q: Will cooking change the flavor or texture?
Roasting and sautéing concentrate sweetness; mature red skins blister and peel cleanly, ideal for jars of roasted-pepper strips.
Q: Does TMR mean it’s resistant to all pepper diseases?
No. TMR is specific to Tobacco Mosaic virus. Use crop rotation, sanitation, good airflow, and even watering to minimize other issues like bacterial spot or anthracnose.
Q: Is it perennial?
Tender perennial only in frost-free zones; elsewhere, grow as an annual or overwinter pruned plants indoors at 60–70°F (16–21°C) under bright light.
Q: Why is my plant flowering but not setting fruit?
Nights below 60°F (16°C) or highs above 95°F (35°C), drought, or excess nitrogen can reduce set. Keep moisture steady, moderate N after first set, and provide light shade during heat spikes.
Q: Why are fruits slow to color red?
Cool nights, heavy canopies, or high nitrogen can delay pigments. Thin inner leaves lightly for light penetration, reduce N once fruit set, and maintain warm, even soil temps.
Q: Can California Wonder 300 TMR cross with other peppers?
Yes, with nearby Capsicum annuum. If saving seed true to type, isolate plantings by distance or bag blossoms and hand-pollinate.
Q: Kitchen tips for California Wonder 300 TMR?
Use green for crisp fajitas and sautés; let pods finish red for stuffed peppers, roasted-and-peeled strips, and freezer-ready diced peppers that keep sweet flavor and texture.
The ancestors of every “California Wonder” bell, like all chiles, first took root in the Americas. Indigenous farmers of Mesoamerica and the Caribbean domesticated wild Capsicum annuum into diverse landraces, saving seed from plants that matched their foods and seasons: thicker flesh that roasted well on comals, mild flavor for stuffing with maize and beans, and clear ripening cues. Seed moved along canoe routes and footpaths, adapting to highland terraces and coastal soils. From this long stewardship emerged the broad, low-heat fruits that would become the template for modern bell peppers—a vegetable form of chile shaped by Indigenous cuisines and careful seedkeeping.
When Iberian ships ferried pepper seed across the Atlantic in the sixteenth century, Capsicum entered the Mediterranean and Balkan kitchens of roasting, stuffing, and preserving. Market gardeners selected blocky, thick-walled, sweet annuums that blistered and peeled cleanly; cooks folded them into peperonata, escalivada, ajvar, lecsó, and piperade. Over generations, selection fixed 3–4 lobes, smooth shoulders, and dependable sweetness at full red. That Old World refinement—still rooted in Indigenous domestication—later returned to North America with immigrant seedkeepers, just as commercial horticulture was taking off.
By the late nineteenth and early twentieth centuries, a distinctly American bell culture formed around truck farms, produce exchanges, and a growing seed industry. The name “California Wonder” first appears as a catalog promise: a bell suited to the irrigated truck districts of California—broad-shouldered, thick-walled, high-yielding, and consistently blocky for neat pack-out. The line spread quickly because it solved real problems: it packed square, peeled easily after roasting, and colored red reliably in sun-baked fields and coastal breezes alike. As the seed trade matured, the variety became a breeding platform: public stations and private houses selected within the type for regional performance, uniformity, and disease resilience.
From that ongoing selection came California Wonder 300 TMR—shorthand that tells a quiet story of mid-century vegetable breeding:
“300” marks a tighter, more uniform block (the “300” series lines were selected for consistent lobing, smoother shoulders, and a squarer silhouette that stacks and stuffs cleanly).
“T.M.R.” signals Tobacco Mosaic virus resistance, an essential trait as greenhouse and field pepper production expanded and viral pressures rose.
In practice, 300 TMR distilled California Wonder into a grower’s tool: uniform 3–4-lobed bells with thick, juicy walls, strong pedicels, and plants that carry heavy sets without collapsing. For processors and canners, the blockiness meant minimal waste; for fresh markets, it meant reliable grade-out and handsome crates; for home cooks, it meant peppers that stuff, roast, and freeze exactly as a bell should.
Culturally, California Wonder 300 TMR bridged farm economics and kitchen expectation in the postwar United States. As suburban gardening boomed and produce aisles standardized, “red bell” became a grocery store constant—and 300 TMR was one of the backbone lines behind that steadiness. In school and community gardens, it turned into the teaching bell: slice one and the anatomy is textbook—thick pericarp for roasting, an open cavity for stuffing, and crisp septa that dice neatly for salads and stews. In immigrant kitchens, it stood shoulder to shoulder with heirloom types: roasted, skinned, and marinated like southern European bells; diced into sofritos and guisados in Puerto Rican and Dominican homes; sautéed with onions for Eastern European soups and stews—always 0 SHU, welcoming every palate.
Seedkeeping kept the variety alive and local. Public programs and small seed houses maintained breeder lines; growers and home gardeners selected for earliness in cool valleys, sunfast shoulders in high tunnels and hot interiors, firm walls for stuffing, and clean skins that peel in a single sheet. In the Northeast and Upper Midwest, seed was saved from plants that set under 50s°F nights and blushed red before frost; in the West and Sunbelt, from plants that held flavor and firmness through heat and late summer harvests. The result is a variety that’s both standardized and adaptable—the paradox at the heart of good vegetable breeding.
In markets, stacks of square, glossy bells signaled abundance; in kitchens, the pepper met every role asked of it. Green stage for crunch in salads and fajitas; full red for roasting pans, jars of marinated strips, and winter freezer bags. The block held shape in stuffed pepper traditions from the Levant to the Rust Belt; the thick wall blistered and peeled cleanly under a broiler like it would in a brick oven. Chefs still lean on it because it behaves the way menus need: predictable size, even cook, sweet finish, no heat.
Today, California Wonder 300 TMR remains a living chapter in a much older story. Its code-like name reflects a century of practical refinement—disease resistance, uniformity, pack-out—layered atop Indigenous domestication and Mediterranean technique. To grow it is to join that continuum: choose seed, cull off-types, favor the plants that color cleanly, carry clusters without lodging, and peel like a dream after a quick char. Save from those, and your California Wonder will lean ever more toward your place—your nights, your winds, your kitchen rhythms. In that way, 300 TMR is not just a variety; it’s a seedkeeping practice written into a blocky, sweet, red bell—ordinary in the best sense, and enduring because it meets everyday needs beautifully.
Saving seeds from California Wonder 300 TMR Pepper (Capsicum annuum):
1. Selecting Plants for Seed Saving:
Choose healthy plants with vigorous growth and abundant peppers.
Avoid plants showing signs of disease or poor growth.
2. Harvesting Seeds:
Timing: Allow the peppers to mature fully on the plant until they turn red and wrinkled.
Collection: Harvest the ripe peppers and cut them open to remove the seeds.
3. Cleaning Seeds:
Separation: Rinse the seeds to remove any remaining flesh.
Inspection: Ensure seeds are clean and free from mold or pests.
4. Drying Seeds:
Place the seeds on a paper towel or screen in a well-ventilated, dry area. Allow them to dry completely for one to two weeks.
5. Storing Seeds:
Containers: Store seeds in labeled paper envelopes or airtight containers.
Storage Conditions: Keep in a cool, dry, and dark place.
Viability: Use seeds within two to three years for best results.
6. Testing Seed Viability:
Test by placing seeds on a damp paper towel in a plastic bag in a warm place and check for germination.
Tips for Successful Seed Saving:
Isolation: Maintain distance between different pepper varieties to prevent cross-pollination.
Pollinators: Encourage pollinators for better seed production.
Record Keeping: Keep detailed records of the process.
Uses and Benefits:
California Wonder 300 TMR Pepper (Capsicum annuum) is known for its large, sweet, green and red fruits. It is often used in salads, stir-fries, and as a fresh snack.
Peppers provide vitamins, minerals, and antioxidants, supporting overall health. California Wonder Peppers are versatile in culinary applications, adding a sweet flavor and color to dishes.
Shipped from U.S.A.
Our seeds are grown and sourced from the US. They're then packed and shipped from Colerain NC.
Triple tested
We regularly test the quality and germination rate of our seeds. We're so confident that our seeds are backed by a 1 year warranty!
Soil Readiness
for Pepper Plants (Capsicum spp.)
Where to get a soil test
Best option: your state’s Cooperative Extension soil testing lab.
Tip: Arid/alkaline regions (e.g., AZ, NM, UT, parts of CA) often use Olsen (bicarbonate) for phosphorus.
Interprets P by extractant; assumes ppm. Results are approximate.
Enter at least one value above, then Calculate.
Summary
Recommended Amendments (per 100 sq ft)
How to Use
Mix P & K sources into top 3–6″ a week or two before planting.
If pH is low, apply lime 3–4 weeks pre-plant (or fall/winter).
Side-dress peppers with ~0.1 lb N / 100 sq ft at first bloom & fruit set.
Add 1–2″ finished compost yearly to build organic matter.
Container mix? Use a peat/coco-based mix with compost and slow-release organic fertilizer; pH is usually already correct.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Join Our Newsletter for Exclusive Savings!
Sign up for our newsletter to get a 30% discount code sent straight to your inbox. If it doesn’t appear right away, please check your inbox settings, and if you still need help, we’re here to assist!
Alliance Of Native Seedkeepers
Pepper Seeds - Sweet - California Wonder 300 TMR Pepper
$200 USD
$600
Unit price /
Unavailable
Description
The improved classic—uniform, productive, and disease-tough. California Wonder 300 TMR is a refined selection of the famous bell, bred for dependable sets, blockier 3–4-lobed fruit, and TMV resistance (TMR)—all with zero heat (0 SHU) and true bell sweetness. Harvest green for crisp, grassy-sweet flavor or let pods finish deep red for maximum sugar and vitamin C.
Plants are sturdy and compact, typically 18–24 inches tall with a tidy, upright habit suited to beds or large containers. Dark foliage shelters thick-walled bells about 3–4 inches across, with smooth shoulders and a uniform blocky shape that holds up beautifully when stuffed or roasted. The improved line offers reliable fruit set across a range of conditions.
In the kitchen, Cal Wonder 300 TMR does it all: fresh for salads and crudités, stuffed (walls stay firm), roasted or grilled for sandwiches and pastas, and diced for freezing without turning watery. After blistering, skins peel cleanly for jars of marinated peppers; red-stage fruit bring full, sweet bell flavor.
Selected for uniformity, yield, and disease resistance, California Wonder 300 TMR makes bell success straightforward for home gardeners and market growers alike. Provide full sun, steady moisture, and moderate feeding for continuous sets; harvest green for volume or let clusters color for peak sweetness and plate appeal.
Seeds look great and gorgeous colors. These glass gem seeds look healthy and a great value for the price. I will update you when I plant them on how many germinate.
The taste is great and the tomato is yellow in color 1-2 lb tomatoes.
Tomato Seeds - Indeterminate - Kentucky Beefsteak
D.F.
Seeds look great and gorgeous colors. These glass gem seeds look healthy and a great value for the price. I will update you when I plant them on how many germinate.
Corn Seeds - Flint -Glass Gem Corn
D.F.
Wow, what a pretty blue these seeds are. i can't wait to plant them and watch them grow. I will update you on how many germinate. The seeds look healthy.
Corn Seeds - Flour -Hopi Blue Corn
D.F.
Seeds look great 👍 and i haven't had a chance to plant any of them yet, but I will update you when I put them in a seed tray and see how many germinate.
