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Sulphur Cosmos Seeds Dwarf Lemon


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Dwarf Lemon is more compact than the species, growing to a height of just 18 to 30 inches, with sunny, lemon-yellow flowers. Annual.

Zones 1 - 10
Hummingbirds & Butterflies
Hummingbirds & Butterflies
Cut Flowers
Cut Flowers
Easy to Grow
Easy to Grow
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 20-30 inches tall
Bloom Time Summer to fall

Plant Information

Sometimes called Orange Cosmos, Cosmos sulphureus is a favorite for flower-pressing crafts. Compared to its popular, pink-flowered cousin, Sulphur Cosmos grows into shorter, bushier plants and produces somewhat smaller yellow to orange semi-double flowers. Dwarf Lemon is even more compact than the species, growing to a height of just 18 to 30 inches, with sunny, lemon-yellow flowers. The flowers of these often remind me of open-style marigolds on larger plants.

See also the pink/white cosmos species, Cosmos bipinnatus.

About Cosmos
The originals are wildflowers, of course, and are native to our own southwest and more commonly, Mexico. This tells you cosmos don't mind hot dry, conditions. In fact, some consider cosmos desert plants. But they're incredibly adaptable. And ever since some plant explorer gathered seeds from the rocky wilds of Mexico and transplanted them into "good garden soil," the world has known that they not only thrive, but enjoy our loamy, well-watered gardens. And if they're not fertilized too much, they rapidly develop into large branching plants with deep green fern-like leaves. If you have a dry season, cosmos plants don't care, and revert to their drought-tolerant roots. Best of all, no matter where they're growing, they cover themselves with more and more daisy-like blooms from midsummer on. Only a hard frost stops the cosmos parade. And the big bonus: a grand stand of this garden classic in late summer can provide months of long-stemmed cut flowers for a whole neighborhood.

Associated SKUs
CSLQP (1/4 Pound)
CSLLB (1 Pound)
Common Name Sulphur Cosmos Dwarf Lemon
Botanical Name Cosmos sulphureus Dwarf Lemon
Seed Life Cycle Annuals
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Yellow
Mature Height 20-30 inches tall
Bloom Time Summer to fall
Ships As Seed
Seeds Per Pound 61,000
Soil Moisture Dry, Average, Well Draining
Soil Type Sandy Soil, Loamy Soil, Drought/Dry Soil
Native To North America
Native To American Southwest and Mexico
Ideal Region Northeast, Southeast, Midwest, Southwest, West, Pacific Northwest
Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Advantages Hummingbirds & Butterflies, Containers, Cut Flowers, Easy to Grow
Is It Storable? Yes - You can store your seed in any cool (not freezing) dry place that is not subject to extreme temperature variations.
Non-GMO Yes
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada Yes


Most orders ship within 48 hours or less.

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USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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