Yellow Cosmos Flower Seeds For Planting

Low stock! Only 10 left
$16.99
$16.99
Shipping calculated at checkout.

Yellow Cosmos Flower Seeds produce vibrant yellow blooms that add warmth and brightness to gardens throughout the flowering season. These easy to grow plants thrive in sunny locations and perform well in flower beds, borders and cutting gardens. Their graceful flowers attract pollinators while providing continuous seasonal color and ornamental value.
  • Free delivery
  • Germination guarantee
Estimated delivery
Get it between Fri, Sep 18 and Mon, Sep 21
FREE
✓ Ordered ● Shipped Delivered
Yellow Cosmos Flower Seeds For Planting

$16.99

Planting Season

Spring to Summer

Light Requirement

Partial Shade

Plant Height

4-6 ft

Indoor/Outdoor

Outdoor
Planting Information
Life Cycle Biennial
Plant Characteristics Low maintenance blooms
Plant Type Flowering Annual
Flavour Profile Not/Applicable
Life Biennial
Germination Time 8-15 days
Fruit Size Not/Applicable
Soil Type Well-drained garden soil
Soil pH 6.0 - 7.5
Spacing Between Plants 8-20 inches
Watering Needs Regular
Harvest Time Not/Applicable
Bloom Season All Season
Seeds per Pack 100
Seed Type Open Pollinated
Yield Potential Abundant
GTIN 36002105881325

Sow seeds directly in well-prepared garden soil after the risk of frost has passed. Cover lightly with a thin layer of soil. Keep the soil consistently moist until germination occurs. Thin out seedlings to appropriate spacing once they have true leaves. For earlier blooms start seeds indoors 4-6 weeks before the last frost date.

Place the plants in a Full Sun location. Water moderately allowing the soil to dry between waterings. Fertilize every 3-4 weeks with a balanced formula. Deadhead spent blooms regularly to encourage more flowering. Protect young plants from extreme weather conditions.

Question about this product?

We're happy to help.

Frequently Asked Questions

Everything you need to know before you sow.

Can yellow cosmos be used to create a sunny-looking garden theme?

Yes. Its bright yellow flowers can provide a warm visual theme in borders, beds, and cutting gardens, especially when grouped together.

What companion colors contrast well with yellow cosmos?

Purple, blue, white, and deep red flowers can create strong visual contrast with yellow cosmos in mixed ornamental plantings.

Is yellow cosmos useful for filling the middle or back of a border?

The listed 4–6 ft height makes it suitable for taller positions where it can add vertical color behind shorter flowering plants.

Can yellow cosmos be grown as a seasonal cutting-garden crop?

Yes. The product page specifically lists cutting gardens as a suitable use, making it an option for seasonal ornamental displays.

How can its tall growth affect garden placement?

Because plants may reach 4–6 ft, place them where their height will not block shorter plants or interfere with paths and views.

Can yellow cosmos add movement to a mixed flower border?

Its tall, graceful growth can add vertical structure and a lighter visual texture alongside shorter, denser flowering plants.

Still have a question?

Our growing experts reply within a day, 7 days a week.
Ask a question