Bee Larkspur Delphinium is a classic heirloom delphinium that rises 4 to 5 feet tall with stately spikes of summer blooms in shades of blue. This hardy perennial thrives in cold climates, hardy to zone 3, and attracts bees and other pollinators throughout June, July, and August. The tall, narrow growth habit and full-sun preference make it a striking focal point in borders, and its deer resistance means you won't have to defend it from browsing.
1
Full Sun
Moderate
3-3
60in H x 18in W
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Moderate
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Towering 48 to 60 inches tall with a delicate 18-inch spread, this heirloom variety commands attention in the garden while remaining narrow enough to tuck into tight spaces. Its magnetic appeal to bees and other pollinators turns every blooming month into a living ecosystem. The hardiness to zone 3 means it returns year after year in cold climates where many ornamental delphiniums struggle, and deer pass it by entirely, making it one of the few tall flowers that needs no protective measures.
Bee Larkspur Delphinium excels as a cut flower for tall arrangements and works beautifully as a focal point in mixed borders. Its pollinator-attracting properties make it valuable in cottage gardens and meadow plantings where supporting bee populations matters. The vertical growth and moderate water needs suit it to the back of perennial beds where height creates dramatic layering.
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Sow seeds indoors 8 to 10 weeks before your last spring frost. Cover seeds lightly with sterile germinating media and keep at 65 to 75 degrees Fahrenheit until germination, which takes 10 to 21 days. Once sprouted, move seedlings to a cool location between 50 to 55 degrees Fahrenheit and keep the soil evenly moist but never saturated to prevent damping off.
Transplant seedlings outdoors after your last spring frost date. Harden off plants by gradually exposing them to outdoor conditions over 7 to 10 days before planting in their final location.
Direct sow seeds into a finely raked seed bed after frost has passed.
Deadhead spent flower spikes after blooming to encourage continued flowering and prevent excessive self-seeding. Cut back the entire plant to ground level in late fall after the first hard frost, or leave stems standing through winter for structure and to protect the crown in cold climates.
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