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Dwarf Lemon Cosmos Seeds

Scientific name Cosmos sulphureus

About this variety

Introducing the Cosmos Seeds - Dwarf Lemon, a delightful addition to any garden space with its compact and charming growth habit. Reaching a mature height of only 12 to 18 inches, this dwarf variety is ideal for container gardening or small flower beds. The vibrant lemon-yellow blooms, measuring approximately 2 to 3 inches in diameter, create a cheerful...

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Alliance of Native Seedkeepers  |  SKU: FL149
$150 USD $200
25% OFF
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$1.50, regularly $2.00. The sale price is already applied and carries into checkout. No code is needed. Coupon codes do not combine with this offer.

Pickup available at Bertie County Seeds

Usually ready in 2-4 days

At a glance

The facts most gardeners need first

View the full variety record
30 minimum seeds per packet
  • Germination7-14 Days days · 70–85 °F
  • First bloom / maturity70-79 Days · 70-79 Days
  • SunFull sun
  • Support & spacingNo-Support · space 12 in · rows 24 in
  • Growth habitUpright/Erect · Annual · 13–18 in tall
  • Best useborders, cutting gardens, pollinators, containers, and seasonal color
Secure checkout Details
Generic
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-starting profileDifficulty, preparation, reliability, and timing Open

Seed success profile

Gardener experience Beginner-friendly
Germination difficulty Straightforward
Preparation before sowing
Use clean seed-starting conditions, the listed sowing depth and temperature, and steady moisture without saturation
Germination speed
7-14 Days
Growing complexity
Bloom crop requiring species-specific sowing, spacing, deadheading or seed maturity, and support when tall
Patience and timing
70-79 Days
Is this seed a good match for your experience?
Expected germination
7-14 Days
Germination temperature
70–85 °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
Usually reliable when seed is stored well and temperature, depth, moisture, and preparation match the recorded requirements
Transplant sensitivity
Varies by species; use direct sowing when the record warns against disturbance
Starting method
Cataloged as suitable for direct sowing; follow the product-specific timing and depth.
Best chance of success
For Dwarf Lemon Cosmos Seeds, control temperature and moisture at sowing, label the start date, and compare emergence with the complete recorded germination window before reseeding.
Planning window

Plan around 7-14 Daysat70–85 °F. Keep moisture, light, and preparation aligned with the sowing instructions below.

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

Seed age, storage, sowing depth, moisture, temperature, light, local conditions, and aftercare can affect results. Last reviewed July 2026.

Browse AONSK seed-starting and garden guides

Garden tools

Need a plan for your space?

Open the garden-fit planner or soil calculator only when you need them.

Open garden tools Uses this product’s recorded growing information. Local weather and garden conditions may vary.

About this variety

What to expect from Dwarf Lemon Cosmos Seeds

Dwarf Lemon Cosmos Seeds are ideal for container gardening or small flower beds. The vibrant lemon-yellow blooms, measuring approximately 2 to 3 inches in diameter.

Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record

Introducing the Cosmos Seeds - Dwarf Lemon, a delightful addition to any garden space with its compact and charming growth habit. Reaching a mature height of only 12 to 18 inches, this dwarf variety is ideal for container gardening or small flower beds. The vibrant lemon-yellow blooms, measuring approximately 2 to 3 inches in diameter, create a cheerful display that attracts pollinators throughout the summer months.

With a typical bloom period starting around 70 to 90 days from sowing, the Dwarf Lemon cosmos offers an extended season of color. These flowers not only brighten your garden but also make wonderful, long-lasting cut flowers for indoor arrangements. Their sturdy stems and prolific blooming nature ensure a continuous supply of blossoms.

Beyond their visual appeal, the Dwarf Lemon cosmos is known for its resilience and ease of cultivation. Thriving in full sun and well-drained soil, they require minimal care once established. Whether you're an experienced gardener or a novice, you'll appreciate the low-maintenance beauty and versatility these seeds bring to your outdoor spaces.

Minimum Seed Count: 30 seeds

View all growing and care factsBotanical identity, timing, climate, soil, spacing, mature size, and crop-specific details

Plant identity

Minimum seed count 30 seeds
Seed product profile Flower
Scientific name Cosmos sulphureus
Also known as Cosmos, Cosmos Seeds - Dwarf Lemon
Life cycle Annual
Botanical family Asteraceae
Reproductive type Open-Pollinated (OP)
Heritage qualifiers Non-GMO
Native to the United States No - Introduced
Domestication note Mesoamerica (Mexico–Central America)

Seed success and gardener experience

Gardener experience Beginner-friendlyLevel 2 of 5
Germination difficulty StraightforwardLevel 2 of 5
Preparation before sowing Use clean seed-starting conditions, the listed sowing depth and temperature, and steady moisture without saturation
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 Usually reliable when seed is stored well and temperature, depth, moisture, and preparation match the recorded requirements
Growing complexity Bloom crop requiring species-specific sowing, spacing, deadheading or seed maturity, and support when tall
Transplant sensitivity Varies by species; use direct sowing when the record warns against disturbance
First harvest or bloom 70-79 Days
Best chance of success For Dwarf Lemon Cosmos 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 70–85 °F
Planting season Spring/Fall
Bloom season Summer
Frost tolerance Tender
Sunlight Full sun
Water needs Drought tolerant

Site, soil, and space

Soil type Loamy
Preferred soil pH 6.0–6.5
Seed depth 1/4 in
Plant spacing 12 in
Row spacing 24 in
Mature height 13–18 in
Growth habit Upright/Erect
Support needed No-Support
Suitable growing locations In-ground bed, Raised bed, Greenhouse, High Tunnel, Containers, Wildflower meadow, Community garden, Indoor growing

Crop-specific details

Garden toolsOpen the garden-fit planner, planting-window questions, or soil calculator only when useful

Uses this product’s recorded growing information. Local weather, soil, and garden conditions may vary.

Garden-fit planning for this variety

Will Dwarf Lemon Cosmos Seeds fit your garden?

Check bloom timing, cut-flower or pollinator use, height, sun, sowing method, and life cycle.

Questions for this flower seed
Seed-starting fit and patience
Recorded product profileBeginner-friendlyStraightforwardRead why
Soil test, pH, drainage, and amendment calculator Have a laboratory soil report? Enter pH, nutrients, texture, bed size, and site observations here. Open soil tools
Recorded soil typeLoamy
Recorded pH range6.0–6.5
Water needsDrought tolerant
LightFull sun

Use a current laboratory soil test

Soil-test interpreter

Compare your report with this product's listed pH target: 6.0–6.5.

This tool interprets values you enter; it does not replace laboratory or Cooperative Extension amendment rates. Soil test methods and nutrient recommendations vary by region.

Full growing record

Open only the section you need

How to start Dwarf Lemon Cosmos Seeds from seedPreparation, timing, depth, germination, transplanting, spacing, and early care

Recorded germination plan

Expected germination
7-14 Days
Germination temperature
70–85 °F

Complete sowing and planting guidance

How to sow and plant Cosmos: 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 specific varietyLight, water, fertility, support, spacing, airflow, crop behavior, and season-long care

Complete growing guide

How to grow Cosmos: 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.

Practical field and garden tips

Additional tips for Cosmos: 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, storage, uses, and benefitsWhen and how to harvest, ways to use the crop, storage, culinary value, habitat value, and garden roles

Uses and benefits

Uses and benefits of Cosmos: grow for home gardens, seedkeeping, fresh harvests, culinary use, and biodiversity in the garden. Exact use depends on the variety and harvest stage.
Seed saving and carrying the variety forwardPollination, isolation, selection, harvest, cleaning, drying, and storage
Seed saving for Cosmos: select healthy, true-to-type plants, allow seed to mature fully before harvest, dry seed thoroughly, and store in a cool, dry, labeled container. Isolate varieties as needed to prevent unwanted crossing.
Problems and answersPests, diseases, troubleshooting, practical response, and product-specific questions

Complete pest and problem guide

Common Pests & Problems — 'Dwarf Lemon' (Cosmos bipinnatus)Insects & MitesAphids (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 boost lacewings and lady beetles.Spider Mites (stippling, webbing on leaves)Controls: Increase humidity around plants and regularly spray foliage with water. Use miticides or insecticidal soap if infestations persist. Encourage predatory mites by planting cover crops like clover.Thrips (distorted flowers, silvering of leaves)Controls: Use blue sticky traps to monitor and reduce populations. Apply spinosad or insecticidal soap as needed. Maintain garden hygiene by removing debris and weeds that harbor thrips.DiseasesPowdery Mildew (white powdery spots on leaves)Controls: Ensure good air circulation by spacing plants appropriately. Apply sulfur-based fungicides or potassium bicarbonate at the first sign of disease. Avoid overhead watering to reduce humidity.Botrytis Blight (gray mold on flowers and leaves)Controls: Remove and destroy affected plant parts. Improve air circulation and reduce humidity. Apply fungicides like chlorothalonil or copper-based products if necessary.Physiological & Environmental IssuesNutrient Deficiency (yellowing leaves, poor growth)Solutions: Conduct a soil test to determine nutrient levels. Amend soil with balanced fertilizers or compost to correct deficiencies. Ensure consistent watering to help nutrient uptake.Heat Stress (wilting, leaf scorch)Solutions: Provide shade during the hottest part of the day. Mulch to conserve soil moisture and water deeply in the morning. Select heat-tolerant varieties for warmer climates.Monitoring & Prevention — Quick Checklist- Regularly inspect plants for signs of aphids, spider mites, and thrips.- Space plants to allow for adequate air circulation and reduce disease risk.- Use mulch to retain soil moisture and regulate temperature.- Apply preventative fungicides in humid conditions to prevent powdery mildew and botrytis blight.- Conduct soil tests and amend as needed to prevent nutrient deficiencies.- Provide shade and water deeply during periods of extreme heat.

Questions gardeners ask

Frequently Asked Questions — Cosmos

Q: When should I plant Cosmos?
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 contextWhat is documented, what is reported, what remains uncertain, and how the variety reached gardeners

Scientific name: Cosmos sulphureus

Plant and variety history

Cosmos bipinnatus, the enchanting Dwarf Lemon Cosmos, emerges from the sun-drenched fields of Mexico, where it has been cherished for its vibrant blooms and delicate foliage. The name cosmos is derived from the Greek word kosmos, meaning \"order\" or \"harmony,\" reflecting the plant's balanced and symmetrical beauty. The Dwarf Lemon variety is named for its compact size and the bright, citrus-like hue of its flowers, which stand out like golden stars against the verdant backdrop of its finely divided leaves.For generations, the cosmos flower has been a beloved garden staple in Mexico, valued not only for its ornamental allure but also for its resilience and ease of cultivation. Local gardeners would plant cosmos in borders and meadows, where its cheerful blossoms attracted pollinators and added a splash of color to the landscape. In rural areas, the flower's seeds were often collected and saved, passed down through families as a symbol of continuity and connection to the land.The Dwarf Lemon Cosmos, like its taller relatives, has found practical uses beyond mere decoration. In traditional Mexican medicine, cosmos flowers were sometimes used in infusions to soothe ailments or as a mild sedative. The plant's ability to thrive in poor soil made it a popular choice for erosion control, stabilizing slopes and preventing soil degradation.Though it thrived quietly in its native habitat for centuries, the wider world came to appreciate Cosmos bipinnatus only in the 19th century, when European botanists and gardeners began to cultivate it. Its adaptability and vibrant colors quickly earned it a place in Victorian gardens, where it was admired for its ability to bloom continuously from summer to autumn. The Dwarf Lemon variety, with its compact growth and sunny disposition, became a favorite among urban gardeners and those with limited space.Cosmos bipinnatus also became a botanical curiosity. Genetic studies have shown it to belong to the Asteraceae family, sharing lineage with daisies and sunflowers. This familial connection explains its daisy-like flowers and robust growth habit—traits that have endeared it to gardeners worldwide.Although other cosmos varieties have been developed with varied colors and forms, the Dwarf Lemon Cosmos remains a beloved classic: the flower that brings a touch of sunshine to any garden. It is a plant that embodies the spirit of joy and simplicity, appearing in everything from cottage gardens and wildflower mixes to urban balconies and public parks.Yet in its homeland, the Dwarf Lemon Cosmos is more than a horticultural delight. It is a cultural heirloom, tied to the landscapes and traditions of Mexico, a living testament to the beauty and resilience of nature. To grow the Dwarf Lemon Cosmos today is to participate in a story that spans local gardens and global appreciation, honoring both the ancestral gardeners who first nurtured its charm and the modern enthusiasts who continue to celebrate its legacy.

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Customer experience

Reviews for Dwarf Lemon Cosmos Seeds

Customer Reviews

Based on 1 review
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Carolyn Shaddick (United States)

I got these for next spring to plant in front of zinnias. Needed something shorter. Looking forward to seeing them bloom!

Hi Carolyn, it sounds like a lovely garden plan! I hope your dwarf lemons bloom beautifully next spring. Thanks for sharing your excitement!

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