Guardian White (Delphinium)-10 Seeds

Guardian White (Delphinium)-10 Seeds


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An F1 hybrid breeding breakthrough. Excellent bloom production during short days for cut flowers.

GREENHOUSE: Sow in Jan. or early Feb. Freeze seed for 24 hrs. just before sowing, to break dormancy. Use Jiffy Mix or fine sand for a growing medium. Germinate in cool soil at 54°F/12°C for 20 days, according to color (best colors are smallest seedlings). High temp. will prevent germ. Grow seedlings cool, at 60°F/16°C days and 50°F/10°C nights.

DIRECT SOWING: Sow outside in late August in cool soil. Freeze seed 24 hours before sowing. Do not pinch the flower heads.

For improved blossoms, add lime to the soil each year.

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  • All parts of this plant are poisonous

  • Attracts Bees and Butterflies

  • Cut Flowers

  • Home Garden Favourite

  • Perennial Seeds

How to Sow and Plant Delphiniums

Delphinium may be grown from seed sown early indoors and transplanted outside after frost, or sown directly in the garden in summer, or grown from potted plants.

Indoor Method: Sowing Delphinium Seed Indoors:

  • Sow seeds indoors 8-10 weeks before last spring frost.
  • Sow 1/8 inch deep in seed-starting formula.
  • Keep the soil moist at 70-75 degrees F.
  • Seedlings will emerge in 21-28 days.
  • As soon as seedlings emerge place on a sunny windowsill until the seedlings are 3-4 inches tall
  • Transplant after all danger of frost.
  • Before planting in the garden, seedling plants need to be “hardened off”. Accustom young plants to outdoor conditions by moving them to a sheltered place outside for a week. Be sure to protect them from wind and hot sun at first. If frost threatens at night, cover or bring containers indoors, then take them out again in the morning. This hardening off process toughens the plant’s cell structure and reduces transplant shock and scalding.

Direct Sow Method:

  • Sow in full sun or light shade with a cool, moist organic soil.
  • In milder areas, sow directly in the garden in mid to late summer.
  • Sow seeds evenly and cover with 1/8 inch of fine soil.
  • Firm the soil lightly and keep evenly moist.
  • Be sure to keep the soil moist but not wet until the plants are established.
  • Seedlings will emerge in 21-28 days.
  • Thin to at least 18″ apart
  • Thin to at least 18 inches apart when seedlings have three sets of leaves


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