Delphinium ajacis 'Rocket Larkspur' mix

600 Seeds

Seeding Delphinium ajacis 'Rocket Larkspur' Mix (also known as Consolida ajacis) is a beautiful and rewarding way to add tall, airy spikes of blooms in shades of blue, pink, purple, and white to your garden. These annual delphiniums are easier to grow than perennial types and are popular in cottage gardens, cut flower beds, and wildflower plantings.

🌸 Delphinium ajacis 'Rocket Larkspur' Mix – Seeding Guide

✅ Quick Overview

🌱 Step-by-Step Seeding Instructions

1. When to Sow

• Fall (recommended): Direct sow in autumn for strong spring growth and earlier blooms

• Early Spring: Direct sow as soon as the ground is workable

• Indoors: 6–8 weeks before last frost, if you want a head start

2. Seed Preparation

• Cold stratification improves germination

  • Place seeds in a moist paper towel inside a plastic bag

  • Store in the fridge for 1–2 weeks before sowing

• Optional: Soak seeds in water for 4–6 hours before planting

3. Sowing Indoors

4. After Germination

• Grow seedlings in bright light (south-facing window or grow lights)

• Harden off for 7–10 days before transplanting outdoors

• Transplant when danger of hard frost has passed

5. Direct Sowing Outdoors

• Sow in prepared soil in full sun

• Sow seeds thinly at ~3 mm deep

• Water gently and keep moist during germination

• Thin to 20–30 cm (8–12 in) apart

☀️ Growing Conditions

✂️ Care Tips

• Stake plants in windy areas; they can get top-heavy

• Deadhead to encourage more blooms or to prevent self-seeding

• Plants will die back after blooming; remove spent stalks if desired

• Leave some seed heads if you want natural reseeding for next year

🌼 Ideal For

• Cutting gardens (long-lasting in vases)

• Meadow-style plantings

• Cottage garden borders

• Mixed with annual poppies, cornflowers, and daisies