‘Heirloom Blue Mirror’ Chinese Delphinium Seeds

Chinese Delphinium - Blue Mirror - Delphinium Grandiflora Perennial Hybrid - This beautiful perennial blooms in its first year and is hardy to USDA zone 3. Fine-textured foliage literally covered in sprays of intensely ultramarine blue little trumpet-shaped florets. Compact lacy plants make a lovely display in the garden and for bouquets. Approx. 50 seeds. Soil & Water: Keep seedlings moist and provide half-strength fertilizer every two weeks after leafing begins. Planting & Growing: Begin indoors, 8-10 weeks before last frost. Sow 1" apart in containers of seed starting mix.

Variety Details

• Plant type: Perennial
• Growth habit: Low Growing
• Crop category: Flower seed
• Recorded feature: Good Cut Flower
• Product format: Seed packet

Sowing & Growing

• Soil Temperature: above 50°F
• Planting Depth: 1/4"
• Germination: 21-28 Days
• Height At Maturity: 18-24"
• Sun/Shade: Full Sun
• Spacing After Thinning: 10-12"

Prepare a weed-reduced seedbed for ‘Heirloom Blue Mirror’ Chinese Delphinium and use the recorded planting season, depth, and light requirements. Press shallow-sown seed into good soil contact and keep the seed zone from drying during establishment. Thin or transplant only when the growth habit and spacing call for it. Leave enough room for mature width and air movement. Bloom timing and final height can shift with sowing date, climate, soil, moisture, and competition, so use listed figures as planning ranges.

Cover 1/4", keep moist and provide a strong light source.

Transplant 3" apart in larger containers when able to handle.

Soil Temperature: above 50°F Planting Depth: 1/4" Germination: 21-28 Days Height At Maturity: 18-24" Sun/Shade: Full Sun Spacing After Thinning: 10-12" Approx Seeds per Pack: 50 Seeds

Place ‘Heirloom Blue Mirror’ Chinese Delphinium where its recorded height and growth habit fit the surrounding planting. Shorter companions can be positioned toward bed edges, while taller stems need room where they will not shade small seedlings too early. If cutting flowers, harvest with clean tools at the stage appropriate to the bloom form. If leaving flowers in place, observe how bloom sequence changes through the season and record which sowing date performed best at the site.

Explore related options in our Flower Seeds.