How To Grow Larkspur

How To Grow Larkspur


Consolida ajacis

Larkspur is one of the easiest cut flowers to grow, is cold tolerant and early to bloom. Can be fall planted in zones 6-8. 


Plant type: annual

Height: 36-48”

Site: full sun

Days to maturity: 80-90 days

Plant spacing: 8-12”

Pinch: not necessary

Kids, Pets, and Deer Resistance: toxic, deer resistant

Indoor & Pots: great for back of bed; not suitable for containers


How to Grow:

Fall planting recommended for zones 5-8. Planting in the Fall allows the plant to establish a robust root system and creates longer stems and stronger plants. 

Direct seed (recommended): Sow ¼” deep; darkness is required for germination. Keep soil moist.

Transplant: Start seeds in trays 5-7 weeks before transplanting in either spring or fall. If growing transplants, grow at 55°F (13°C) until ready to plant outside. Larkspur performs best where summers are cool.

Germination: 14-21 days at 55°F (13°C). You can pre-chill seed for 7 days in the fridge to improve germination.

Where to plant:  Plant in the sun and well drained soil.

Harvesting/Vase Life:

Fresh - 2-3 basal flowers open on up to 1/3 of stem. Dried - flowers on stem are open but before petals drop.

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