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Xanthos Cosmos Seeds

Xanthos Cosmos Seeds

1264

4.1
Rated 4.1 out of 5 stars
11

An out-of-this-world color of cosmos! This fairly new, yellow beauty (xantho means "yellow" in Greek) won the Fleuroselect Novelty, and Gold Medal awards in 2016. Not only is the color unique, the plants are early to flower, well-branched, and shorter, making them an excellent choice for containers or borders. Cosmos are drought tolerant, practically care free, attract pollinators, and make a nice addition to a cut-flower bouquet.

$3.49
$3.49
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~0.57 g

(~25 seeds)

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  • Variety Info
  • Sowing Info
  • Learn More

Variety Info

Family: Asteraceae

Type: Cosmos (Learn more)

Native: Mexico and Arizona

Hardiness: Annual

Exposure: Full sun

Bloom Period: Summer to frost

Plant Dimensions: 20"–25" tall

Variety Info: 2"–2½" soft-yellow blooms with white at the center and petal edges; single petaled and some with a wreath of shorter petals in the center.

Attributes: Attracts Hummingbirds, Attracts Pollinators, Cut Flower, Drought Tolerant

Non GMO Project

Sowing Info

When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F.

When to Start Inside: 4 to 6 weeks before your average last frost date.

Days to Emerge: 5–10 Days

Seed Depth: Barely cover

Seed Spacing: A group of 3 seeds every 12"

Thinning: When 1"–2" tall, thin to 1 every 12"

Your hardiness zone is

4.1
Rated 4.1 out of 5 stars
Based on 11 reviews
Total 5 star reviews: 8 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 2
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11 reviews
  • STEPHANYE B.
    Verified Buyer
    Rated 5 out of 5 stars
    3/2/25
    5 Stars

    Love the selection

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  • Carolyn W.
    Verified Buyer
    Rated 5 out of 5 stars
    11/4/24
    5 Stars

    My first set of 5 seeds under grow lights only yielded 1 successful germination. I tried again and adjusted my heating mat a bit lower (From 75F to 70-72 F) and they performed much better. I got 100% germination the second time around and we shall see how the seedlings develop.

    Was this helpful?
    Which best describes you as a gardener? Beginner
  • Ingrid H.
    Rated 5 out of 5 stars
    10/22/24
    5 Stars

    We're in October now and blooms are still going! Zone 4b

    Was this helpful?
    Which best describes you as a gardener? Intermediate
  • Jordan S.
    Rated 1 out of 5 stars
    9/1/24
    1 Star

    Couldn't get them to germinate. Tried two packages and nothing. Would not buy again.

    Was this helpful?
    Which best describes you as a gardener? Intermediate
  • Kathleen J.
    Verified Buyer
    Rated 1 out of 5 stars
    8/5/24
    1 Star

    Did not produce flowers. Very disappointed this year with the seed selection.

    Was this helpful?
    Which best describes you as a gardener? Professional