Rocket Larkspur Mixed Seeds – Tall Annual Cut Flowers

Tall Flower Spires for Cottage and Cutting Gardens

Rocket Larkspur Mixed seeds produce tall annual flowers in white, lilac, and pink, with delicate, deeply divided foliage and branching stems. The approximately 1-inch spurred blooms add height and an airy texture to borders, meadow-style plantings, and fence lines.

Grow a patch for fresh arrangements, or let the flower stems rise among other cottage-garden annuals. Plants reach approximately 24–36 inches tall and can self-sow when flowers are allowed to set seed.

Important safety warning: All parts of larkspur are poisonous, including the seeds. Do not consume any part of the plant. Keep seeds and plants away from children, pets, and livestock. These are ornamental flowers, not edible flowers.

Plant Highlights

• Common name: Rocket Larkspur Mixed.
• Life cycle: Annual; may self-sow in suitable conditions.
• Flower colors: White, lilac, and pink.
• Mature height: Approximately 24–36 inches.
• Spacing: 12–18 inches apart.
• Light: Full sun to partial shade.
• Soil: Moist, well-drained soil; listed pH range 6.1–7.3.
• Uses: Cut flowers, cottage borders, and meadow-style ornamental plantings.
• Wildlife interest: Attracts pollinators; described as deer resistant, although browsing can vary.

When to Sow

Larkspur prefers cool conditions for germination. Direct sow in early spring as soon as the ground can be worked, or sow in fall where local winter conditions are suitable. Flowering time depends on sowing date and climate; the existing growing information lists summer into fall.

Seed Preparation and Direct Sowing

The existing growing guidance recommends 1–2 weeks of cold-moist treatment before sowing: place seeds on a damp paper towel inside a sealed bag and refrigerate. Label clearly and keep away from food, children, and pets.

Sow thinly into prepared soil and cover lightly, no deeper than the thickness of the seed. Water gently and keep the soil moist during germination. The listed germination range is approximately 14–28 days at 50°F; actual timing can vary.

Direct sowing is preferred because larkspur does not transplant well. Thin seedlings to 12–18 inches apart so plants have room to branch.

Growing and Care

Choose a sunny to partly shaded site with good drainage. Monitor moisture while plants establish and avoid waterlogged soil. Provide support if tall stems lean in exposed locations.

Remove spent flower stems to keep the display tidy and encourage continued flowering where conditions allow. Leave selected plants to set seed if self-sowing is wanted, or remove seed heads before they mature to limit volunteers. Keep all cut stems and seed heads away from children and animals.

Growing in Containers

Direct sow into a roomy container with drainage holes and a well-draining potting mix. Allow for the mature 24–36 inch height and 12–18 inch plant spacing; avoid overcrowding.

Position the container in full sun to partial shade and shelter it from strong winds. Check moisture frequently, allow excess water to drain, and add support if needed. Keep the container out of reach of children and pets.

Available Seed Packs

Choose a 500-seed packet, 2,000 seeds, 1 oz, or 1/4 lb. Weight-based options are sold by weight; no unverified seed count is assigned to those packs.