Larkspur 'Giant Imperial Mix' Seeds
If you love the towering vertical spikes of a cottage border but don't want to wait years for perennials to establish, Larkspur is the answer. 'Giant Imperial' is a superior, florist-quality strain that produces tall, sturdy stems packed with fully double, ruffled flowers in a romantic mix of violet, deep blue, rose pink, carmine, and white.
Unlike older varieties that produce just one central stem, the 'Imperial' group branches from the base, giving you multiple cutting stems from every single plant. It is an absolute essential for the cutting patch, providing height and drama to bouquets. It also dries beautifully, holding its colour for winter arrangements or making the perfect biodegradable wedding confetti.
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🌿 Understanding the Plant
Larkspur is a Hardy Annual.
It completes its life cycle in one season. It is a "cool season" flower, meaning it establishes best in the chilly days of autumn or early spring and flowers before the intense heat of late summer.
The "Fridge Trick": Larkspur seeds can go dormant in warm packaging. To wake them up, put the sealed packet in your fridge freezer for 7 days before sowing. This cold shock mimics winter and significantly boosts germination rates.
🌱 Growing Guide: How to Sow and Grow
Larkspur hates root disturbance and loves the cold.
Germination:
Sow directly outdoors in Autumn (Sept) for the biggest plants, or Early Spring (March-April). Scatter seeds onto raked soil and cover lightly. They need darkness to germinate, so ensure they are covered with soil or a board. Germination takes 14-28 days.
Where to Sow:
They demand full sun and rich, well-drained soil. Because they have a long taproot, they do not like being transplanted. Sow them where they are to flower, or use deep module trays/root trainers if sowing indoors.
Care While Growing:
Support: These are tall plants (up to 1.2m). In windy gardens, they will need staking or netting to keep the heavy flower spikes upright.
📋 Plant Specifications
| Latin Name | Consolida ajacis |
| Common Name | Larkspur 'Giant Imperial Mix' |
| Hardiness | H3 (Hardy Annual) |
| Light Required | Full Sun ☀️ |
| Height | ↕️ 90cm - 120cm (Tall) |
| Spread | ↔️ 40cm |
| Spacing | 🌱 30cm apart |
| Great for | ✂️ Cut Flowers 🍂 Dried Flowers 👰 Wedding Confetti 🐝 Bees |
| Seed Count | Approx. 300 seeds per packet |
🤝 Perfect Garden Companions
The tall spires of Larkspur provide vertical structure. Pair them with these softer shapes:
- 🔵 Cornflower 'Blue Ball': The Country Classic. Cornflowers and Larkspur are the traditional ingredients for an English meadow border. The round cornflower heads contrast perfectly with the vertical Larkspur spikes.
- ❄️ Ammi Majus (Queen Anne's Lace): The Filler. While Larkspur provides the colour and the "thriller" element, Ammi provides the frothy white "filler" that knits the whole planting scheme together.
📅 Sowing & Flowering Calendar
Sow in Autumn (for biggest plants) or Spring. Flowers early-to-mid summer.
| Month | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sow Outdoors | 🟢 | 🟢 | 🟢 | 🟢 | 🟢 | |||||||
| Flowers | 🌸 | 🌸 | 🌸 | 🌸 |
⚠️ Toxicity Warning
Larkspur belongs to the Delphinium family. All parts of the plant and seeds are toxic if ingested by humans or pets. Wash hands after handling seeds.
🏆 Officially Recognised Excellence
Larkspur is a fantastic source of nectar. Consolida ajacis is listed on the RHS Plants for Pollinators list, particularly attracting bumblebees and hoverflies.
- Regular price
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£2.10 - Regular price
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- Sale price
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£2.10
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