- Sow seeds indoors February–April or September on the surface of moist seed compost.
- Lightly cover with vermiculite and keep at 15-18c.
- Germination takes 20-40 days. Light aids germination.
- If seeds fail to germinate, cold stratify at 4c for 3 weeks, then return to warmth.
- When seedlings are large enough, transplant into pots.
- Gradually acclimatise to outdoor conditions.
- Plant out in full sun after all risk of frost, 60cm apart.
- It can be autumn sown in pots, which need to be placed undercover until shoots appear in the spring.
Delphinium ‘Pacific Giant Percival’ produces tall spikes of semi‑double white flowers with a dark bee at the centre. Ideal for mixed plantings or adding striking vertical interest to borders and cottage gardens.
