Flowers Delphinium

Belladonna Mix
Delphinium Seed

Product ID: 1136

Hardiest type of delphinium.

First-year flowering perennial. Well-branched plants produce spikes in dark blue, turquoise, or white. Attracts bees and butterflies. Often grown as an annual. Perennial in Zones 3-7. Ht. 40-60". Avg. 11,600 seeds/oz. Packet: 50 seeds.
All parts of this plant are poisonous, including the seeds. Exercise extreme caution around children and pets. The purchaser assumes all liability relating to the use of this product.


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1,000 Seeds

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DAYS TO GERMINATION: 10-20 days at 65-70°F (18-21°C)

SOWING: Transplant (recommended) - Sow 10-16 weeks before last frost. Support strongly advised. Cover seed lightly. Transplant into larger cell packs or 3-4" containers 6-8 weeks after germination. Grow seedlings at 50-55°F (18-21°C) in the greenhouse or cold frames. Harden off and transplant outside after the last frost. Overhead irrigation is not advised. If growing in the greenhouse, transplant plugs into raised bed in August through September. Provide Hortonova (horizontal trellis) 12-18" above the beds. Keep temperatures below 60°F (16°C), in a heated structure. Feed with a balanced fertilizer. Direct seeding is not recommended.


PLANT HEIGHT: Varies. Providing support is strongly advised.

PLANT SPACING: 12-18" if being grown as a perennial. 12" apart if being grown as an annual.

HARDINESS ZONES: Zones 3-7 A short-lived perennial, generally only lasting 3 seasons.

HARVEST: 1/4 to 1/3 of flowers on stem are open. Place immediately in water. Plants bloom again in late summer and early fall if cut back immediately after the first bloom.

SOIL REQUIREMENTS: Well-drained, fertile, slightly alkaline soil with plenty of organic matter. Fertilize lightly but frequently with a balanced fertilizer.

USES: Excellent cut flower. Well suited to perennial beds and borders.

SCIENTIFIC NAME: Delphinium spp.

ALTERNATE NAME:Candle larkspur

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Quick Facts

Latin Name

Delphinium x belladonna

Days To Maturity

Average number of days from seeding date to harvest, within a specific crop group. If a transplanted crop: average number of days from transplant date. Not sure if crop is direct-seeded or transplanted? Check the Growing Information box for details. If crop can be both direct-seeded or transplanted, days to maturity refers to direct seeding. Days to maturity for all flowers and herbs is calculated from seeding date.

130 - 135 Days

Life Cycle

Plants can be Annuals (single growing season), Perennials (grow year after year), Tender Perennials (grow year after year in warmer climates; and in some cases when given special protection in colder climates), or Biennials (require two years to mature).


Hybrid Status

Hybrid: The offspring of a cross between two or more distinct parent lines, usually of same species, and selected for improved traits.
Open-pollinated: A non-hybrid variety that can reproduce itself in kind, demonstrating relatively stable traits from one generation to the next.

Open Pollinated

Product Features

Use for Cut Flowers and Bouquets Use for Cut Flowers and Bouquets
Variety good for fresh cut-flower displays.
Attracts Beneficial Insects Attracts Beneficial Insects
Variety attracts and supports pollinators and/or insects that prey on garden pests.

Use for Cut Flowers and Bouquets Attracts Beneficial Insects