Delphinium semibarbatum

Genus: Delphinium

Species: semibarbatum

Family Name: Ranunculaceae

Synonym: D.zalil

Seed Catalogue No.: 444B

Hardiness: Hardy

Lifecycle: Perennial

Colour: Yellow/Orange

Flowers: June, July

Lighting Conditions: Full Sun, Partial Sun

Soil Type: Chalk, Sand, Loam

Soil Acidity: Alkaline, Neutral, Acid

Moisture: Well-drained

Germination Instructions

Sow indoors in spring. Sow under glass autumn-winter. Indoors, surface sow onto moist, well-drained seed compost. Just cover seed with a sprinkling of vermiculite. Place in a polythene bag and pop in the fridge at 4°C for 3 weeks then remove to warmth for germination, ideal temp. 10-13°C. A propagator may be used. Keep out of direct sunlight. Germination takes 1-2 months approx. Transplant seedlings into a cell tray and once grown pot on into an 8cm pot. Liquid feed. Acclimatise and plant out from May. Seed can be sown autumn-winter, surface sow, just cover with vermiculite, place somewhere dry and frost free, a garage or greenhouse is ideal. In spring when green shoots appear water and keep in a bright frost free area until danger of frost has passed.

Growing Instructions

Prefers a fertile well-drained soil in full sun. Shelter from strong winds and stake well. Apply a liquid feed every 2 weeks in the growing season. For best flower spikes thin shoots when 7cm tall to leave a minimum of 2-3 shoots on young plants and 5-7 on established plants.

Cultivation Instructions

Deadhead by cutting spent flower spikes back to small flowering side shoots. This will encourage further blooms. Cut down all growth to ground level once it has withered in autumn. Propagate by taking pencil thin basal cuttings in early spring.

When to Sow

• Sow Under Cover/Plant Indoors
• Flowers/Harvest

Approximate number of seeds per packet: 12

Please note we pack the majority of our seeds by volume so the number of seeds indicated is only an approximation.