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Alliance Of Native Seedkeepers  |  SKU: HPP18

Thai Pepper Seeds

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Seed packet & garden essentials

What to know before you plant

Open complete growing & care facts
25 minimum seeds per packet
  • Maturity70-79 Days · 70-79 Days
  • Growth habitBush · Annual · 13–18 in tall
  • Best usefresh cooking, roasting, drying, preserving, containers, and warm-season gardens
  • Flavor & characterEach pepper ripens from glossy green to vivid red, delivering bold flavor whether fresh, dried, or infused into oils and sauces. · Red
  • Germination7-14 Days days · 75–90 °F
  • Seed preparationStart in a clean, warm, evenly moist seed-starting mix and provide strong light immediately after emergence
  • SunFull sun
  • Support & spacingStake · space 18 in · rows 18 in
  • Container fitWell suited to containers when soil volume, drainage, sunlight, and regular moisture match the mature plant
  • Water needsModerate
  • SoilLoamy · pH 6.5–7.0
  • Planting seasonSpring · blooms Summer · Tender
$200 USD
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Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.

Read how we define heirloom, hybrid, and GMO/BE seed · USDA BE Standard

Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Seed success profile

Some experience is helpful

Some experience is helpful. The rating reflects the crop profile, preparation steps, transplant sensitivity, season length, support or space needs, and the recorded maturity or bloom timing for Thai Pepper Seeds.

Rules-based · no AI
Gardener experience Some experience is helpful
Germination difficulty Moderate or temperature-sensitive
Preparation before sowing
Start in a clean, warm, evenly moist seed-starting mix and provide strong light immediately after emergence
Germination speed
Typical — usually 7–21 days
Growing complexity
Warm-season crop requiring early seed starting in many regions, warmth, and attention to fruit load
Patience and timing
70-79 Days
Is this seed a good match for your experience?
Expected germination
7-14 Days
Germination temperature
75–90 °F
Stratification
Not normally required by the current record
Scarification
Not normally required by the current record
Pre-soaking
Not normally required by the current record
Light during germination
Cover to the recorded depth; provide strong light immediately after emergence
Germination pattern
Reliability depends strongly on correct preparation, temperature, moisture, and patience through the full emergence window
Transplant sensitivity
Transplant after slow hardening; cold conditions can stall growth
Starting method
Cataloged for indoor starting or transplanting; follow the hardening-off guidance.
Best chance of success
For Thai Pepper Seeds, control temperature and moisture at sowing, label the start date, and compare emergence with the complete recorded germination window before reseeding.
What to expect

Preparation: Start in a clean, warm, evenly moist seed-starting mix and provide strong light immediately after emergence. Germination light: Cover to the recorded depth; provide strong light immediately after emergence. Expected emergence: 7-14 Days. Temperature: 75-90 °F.

Slow germination is not automatically failed germination.

Maintain the listed temperature, moisture, light, and treatment conditions for the full expected window. Some seed lots emerge gradually rather than all at once.

1 Beginner-friendly 2 One extra step 3 Some experience helpful 4 Patient growers 5 Advanced propagation

This deterministic profile uses recorded product facts; it is not Artificial Intelligence and is not a guarantee. Seed age, storage, sowing depth, moisture, temperature, light, local conditions, and aftercare can all affect results. Last reviewed July 2026.

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Open the detailed garden-fit planner Deterministic rules · no Artificial Intelligence · no live weather service

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Pepper seed grower’s field guide

Grow Thai Pepper Seeds

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About this variety

Thai Pepper Seeds

Description

The fiery gem of Southeast Asian cuisine. ‘Thai Hot’ peppers produce small, slender fruits that pack a bright, searing heat balanced by a touch of citrusy sweetness. Each pepper ripens from glossy green to vivid red, delivering bold flavor whether fresh, dried, or infused into oils and sauces.

Compact, bushy plants grow 12–18 inches tall and become covered in upright clusters of fruit—ornamental yet intensely productive. The peppers measure 50,000–100,000 Scoville Heat Units, making them perfect for stir-fries, curries, and hot sauces where sharp, clean spice is essential.

A traditional variety long cultivated across Thailand and neighboring regions, this pepper embodies the heart of Southeast Asian flavor—fiery, fragrant, and unforgettable.

Garden-fit planning for this seed

Will Thai Pepper Seeds fit your garden?

Check warmth, season length, growing space, harvest stage, and intended kitchen use.

Rules-based · no AI
Questions for this pepper seed
Seed-starting fit and patience
Recorded product profileSome experience is helpfulModerate or temperature-sensitiveRead why

Every recorded growing detail

Complete growing & care facts

Continue to sowing instructions

Plant identity

Minimum seed count 25 seeds
Seed product profile Pepper
Scientific name Capsicum annuum
Common name Thai Hot Pepper
Cultivar or variety Thai Hot
Also known as Pepper, Pepper Seeds - Hot - Thai
Color Red
Life cycle Annual
Botanical family Solanales
Reproductive type Open-Pollinated (OP)
Heritage qualifiers Heirloom
Native to the United States Domesticated Plant
Domestication note Mesoamerica (Mexico–Central America)

Seed success and gardener experience

Gardener experience Some experience is helpfulLevel 3 of 5
Germination difficulty Moderate or temperature-sensitiveLevel 3 of 5
Preparation before sowing Start in a clean, warm, evenly moist seed-starting mix and provide strong light immediately after emergence
Stratification Not normally required by the current record
Scarification Not normally required by the current record
Pre-soaking Not normally required by the current record
Light during germination Cover to the recorded depth; provide strong light immediately after emergence
Germination pattern Reliability depends strongly on correct preparation, temperature, moisture, and patience through the full emergence window
Growing complexity Warm-season crop requiring early seed starting in many regions, warmth, and attention to fruit load
Transplant sensitivity Transplant after slow hardening; cold conditions can stall growth
First harvest or bloom 70-79 Days
Best chance of success For Thai Pepper Seeds, control temperature and moisture at sowing, label the start date, and compare emergence with the complete recorded germination window before reseeding.

Timing and climate

Days to maturity 70-79 Days
Germination 7-14 Days
Germination temperature 75–90 °F
Planting season Spring
Bloom season Summer
Frost tolerance Tender
Sunlight Full sun
Water needs Moderate

Site, soil, and space

Soil type Loamy
Preferred soil pH 6.5–7.0
Seed depth 1/4 in
Plant spacing 18 in
Row spacing 18 in
Mature height 13–18 in
Growth habit Bush
Support needed Stake
Suitable growing locations In-ground bed, Raised bed, Containers, High Tunnel, Greenhouse, Vertical, Community garden

Crop-specific details

Heat category Hot
Scoville heat units 50,000–100,000 SHU
Fruit size 12-18 inches
Flavor profile Each pepper ripens from glossy green to vivid red, delivering bold flavor whether fresh, dried, or infused into oils and sauces.
How to sow and plantPreparation, sowing depth, germination, timing, and early care
How to sow and plant Pepper: plant in prepared, well-drained soil after the recommended seasonal window for your area. Keep the seedbed evenly moist during germination, thin seedlings to the listed spacing, and mulch established plants to conserve soil moisture.
How to grow this varietyWater, light, support, site care, and variety-specific guidance
How to grow Pepper: choose a site with the listed sunlight and soil requirements. Water consistently, avoid overcrowding, and monitor plants for pests, disease, and nutrient stress. Harvest at the proper stage for best flavor and seed quality.
Open additional practical growing tips
Additional tips for Pepper: succession plant when appropriate, label varieties clearly, and keep good garden notes on germination, vigor, flavor, and harvest timing so you can compare varieties season to season.
Harvest, use, and save seedWays to use the crop, harvest expectations, storage, and seed-saving guidance

Ways to use and enjoy

Uses and Benefits:
Thai Pepper (Capsicum annuum) is known for its small, hot fruits and is a staple in Thai cuisine. It is often used in curries, stir-fries, and sauces.

Peppers provide vitamins, minerals, and antioxidants, supporting overall health. Thai Peppers are versatile in culinary applications, adding intense heat and flavor to dishes.

Seed saving

Saving seeds from Thai Peppers (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 pepper 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.
Common problems and gardener questionsTroubleshooting, pests, disease pressure, and practical answers

Common pests and problems

Common pests and problems for Pepper: monitor for chewing insects, sap-sucking insects, fungal leaf spots, damping off, poor germination from cold or dry soil, and stress from inconsistent watering. Use crop rotation, spacing, mulch, and good airflow to reduce pressure.

Questions gardeners ask

Frequently Asked Questions — Pepper

Q: When should I plant Pepper?
A: Follow the planting season listed on this product page and adjust for your local frost dates.

Q: How deep should I sow the seeds?
A: Use the seed depth listed in the growing facts.

Q: Can I save seed from this variety?
A: Open-pollinated varieties can generally be saved when properly isolated and selected; hybrids may not grow true to type.
History, provenance, and cultural contextBotanical identity, documented history, and relationships surrounding the variety

Scientific name: Capsicum annuum

Pepper Seeds - Hot - Thai belongs to the Capsicum tradition, first domesticated in the Americas and later spread worldwide through trade and migration. Peppers have been selected for heat, sweetness, color, drying quality, and culinary use, making them one of the most culturally important garden crops.

Soil and site planning

Prepare the root zone for Thai Pepper Seeds

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Recorded soil typeLoamy
Recorded pH range6.5–7.0
Water needsModerate
LightFull sun

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.
Adjusts P (ppm) target & interpretation.
Target 6.2–6.8
Ideal 4–8%
Target 40–60 ppm (Mehlich-3)
Target 150–200 ppm
Ok ≥ 1000 ppm
Ok ≥ 120 ppm
For pH adjustment size
For “shopping list” amounts
Interprets P by extractant; assumes ppm. Results are approximate.
Enter at least one value above, then Calculate.

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Thai Pepper Seeds

Germination
7-14 Days
Maturity
70-79 Days
Gardener fit
Some experience is helpful
Life cycle
Annual

Customer experience

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