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Delphinium Giant Imperial Larkspur

Consolida ajacis

Delphinium Giant Imperial Larkspur is a stunning annual known for its tall spikes of densely packed, colorful blooms in shades of blue, pink, white, and lavender. This elegant plant adds vertical interest to garden beds and borders, reaching heights of up to 4 feet. Thriving in full sun and well-drained soil, it blooms in early to mid-summer, attracting pollinators like bees and butterflies. Ideal for cut flowers, this larkspur brings a touch of classic beauty to any garden.

300 Seeds
Multicolor
$3.45

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All of our seeds are Germination Tested - Plant with Confidence.

Plant Data
Growing Instructions
Plant Data
Zones:  Annual - Grows in all zones, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
Growth Cycle:  Perennial
Light:  Full Sun, Full Sun to Partial Shade
Water Needs:  Moderate
Color: 
Soil:  Tolerant of most soils, Sandy, Loam, Silty, Clay, Chalky, Peaty
Growth Rate:  Moderate
Maturity - (Vegetables Only): 
Edible:  No.
Height:  Up to 3 Feet, Up to 4 Feet
Evergreen:  No
Special Features:  Attracts Pollinators,Deer Resistant, Flowering,Cold Hardy,Cut Flowers, Drought Tolerant, Ornamental, Dried Flowers, Arts and Crafts Basket Weaving
Warnings:  Plant is toxic if ingested
Growing Instructions
How to Germinate Delphinium Giant Imperial Larkspur

How to Germinate Delphinium Giant Imperial Larkspur (Consolida ajacis)
  • Sow Delphinium Giant Imperial Larkspur seeds directly outdoors in early spring or fall, as they prefer cooler temperatures for germination.
  • If starting indoors, sow seeds 6-8 weeks before the last expected frost date.
  • Scatter seeds on the soil surface and press them down gently; do not cover, as they need light to germinate.
  • Maintain a soil temperature of 60-65°F (15-18°C) for optimal germination, which usually takes 14-21 days.
  • Keep the soil consistently moist during the germination period, but avoid overwatering.
  • Once seedlings are 3-4 inches tall, thin or transplant them to 12-18 inches apart to allow adequate space for growth.

Additional Tips
  • Delphinium prefers full sun to partial shade and well-draining soil enriched with compost or organic matter.
  • Water regularly, keeping the soil moist but not soggy to encourage strong growth.
  • Apply a balanced fertilizer every 4-6 weeks during the growing season to support healthy blooms.
  • Stake tall plants to prevent them from falling over, especially in windy conditions.
  • Deadhead spent flowers to promote additional blooming and maintain a tidy appearance.
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If we shipped you the wrong product, you ordered by mistake, changed your mind, no longer want/need the item, or it arrived defective or damaged, We're Sorry! We will send a replacement or refund you for your purchase, provided the return request is received within 90 days of the order shipment date (The order shipment date and order notification are provided to you by email).

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Earthcare Seeds Guarantees to the Best of our Ability:

1: The seeds we promote are sourced, wild-crafted to conservation standards, naturally grown or organic, open-pollinated, and heirloom, and do not knowingly contain Genetically Modified Organisms (GMO) or Genetically Engineered (GE) seeds.

2: The seeds have been tested for germination, inspected for viability, and good faith placed in the seed's source.

3: That the seed sold is of high quality and described on the container within recognized tolerances within the trade as required under State and Federal Seed Laws.

4: We cannot guarantee the establishment of plants due to various factors over which we have no control.

5: We make no other guarantees, express or implied, and no liability hereunder shall be asserted unless the buyer or user reports to Earthcare Seeds within a reasonable period of time (not to exceed 90 days of receipt of seed) any conditions that might lead to a complaint.

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Delphinium Giant Imperial Larkspur

Delphinium Giant Imperial Larkspur

$3.45