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Botanical Interests

Decorative Double Blend Dahlia Seeds

Decorative Double Blend Dahlia Seeds

Regular price $2.69
Sale price $2.69 Regular price
~0.5 g (~50 seeds)
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Product Details

You can grow breathtaking dahlias from seed and enjoy them year after year. This very tall blend of eye-popping colors is especially suited for the back of the garden, and the long, sturdy stems make them great for cut flowers. Blooms appear about 90 days from sowing, so you can enjoy beautiful blooms come summer. Perennial in USDA zones 7–10; in colder climates, at season's end, tubers can be lifted and stored indoors over winter. Attracts butterflies and other pollinators. Use the edible, mild-flavored petals to garnish salads, desserts, and drinks. (The flower's central disk, while edible, can be bitter.) Dahlia pinnata tubers are edible, with a flavor somewhat similar to raw jicama. The flavor of the crisp, juicy tubers is bland to mildly sweet.

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  • Variety Info
  • Sowing Info
  • Growing Info

Variety Info

Family: Asteraceae

Native: Mexico and Central America

Hardiness: Perennial in USDA zones 7 to 10

Exposure: Full Sun

Bloom Period: Summer to frost

Plant Dimensions: 5' tall

Variety Info: 3" semi- and fully-double flowers in an array of colors that may include: yellow, white, pink, red, magenta, plum, and orange.

Attributes: Attracts Butterflies, Attracts Pollinators, Cut Flower, Edible Flower

Sowing Info

When to Sow Outside: 2 to 4 weeks after your average last frost date.

When to Start Inside: RECOMMENDED. 8 to 10 weeks before your average last frost date. Ideal soil temperature for germination is 65°–70°F. Sow in biodegradable pots; roots are sensitive to disturbance.

Days to Emerge: 5–20 Days

Seed Depth: ¼"

Seed Spacing: 3 seeds every 18" to 24"

Thinning: When 2 sets of leaves, thin to 1 every 18" to 24"

Growing Info

Harvesting: For longest vase life, harvest flowers in the morning and choose flowers with just the outer 2-3 layers of petals open.

4.8
Rated 4.8 out of 5 stars
Based on 20 reviews
Total 5 star reviews: 18 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
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20 reviews
  • Jessica S.
    Rated 5 out of 5 stars
    Apr 2, 2024
    5 Stars

    These were very easy to grow and came in so many beautiful colors. I saved the tubers over the winter for the colors I liked most and will plant more from seed this year to see what I get.

    Which best describes you as a gardener? Intermediate
  • Jessica G.
    Rated 5 out of 5 stars
    Mar 10, 2025
    5 Stars

    I had a great experience with Botanical Interests Cactus Blend Dahlia seeds last year. I am trying the Double Blend Dahlia mix this year and starting early indoors. The germination rate for my packet was 90%. Thank you so much for the great seeds! Hope to update what the flowers are like in a few months.

  • sandra m.
    Verified Buyer
    Rated 5 out of 5 stars
    Jan 9, 2025
    5 Stars

    All seeds germinated successfully and are growing well.

  • Ro M.
    Verified Buyer
    Rated 4 out of 5 stars
    Nov 22, 2024
    4 Stars

    FINE QUALITY, RESPONSIVE SEEDS; BLOOM QUALITY AND COLORS ARE LOVELY.

  • Andrea
    Verified Buyer
    Rated 5 out of 5 stars
    May 29, 2023
    5 Stars

    Love these dahlias!

    Take awhile to grow and blossom but beautiful