How to Grow Larkspur

Sow Larkspur seeds directly in the garden 4 weeks before your last frost date. Use the search on this page to find exact dates for your location.

Larkspur typically matures in about 65 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Larkspur does best when direct sown outdoors. Plant seeds directly in the garden at the appropriate time based on your local frost dates.

Larkspur requires full sun to partial shade to thrive.

Space Larkspur plants 9 inches apart to allow adequate airflow and root development.

Larkspur has moderate (1 inch/week) water needs. Consistent moisture is important especially during germination and early growth.

Yes — seed saving difficulty for Larkspur is rated easy. Allow seed pods to turn brown and dry on the stalk. Harvest before pods split open. Crack dry pods to release tiny seeds. Dry in open envelope for 1 week.

Properly dried and stored Larkspur seeds remain viable for up to 2 years. Store in a cool, dark, dry location in an airtight container with a silica gel packet for best results.

Yes — Larkspur is open-pollinated, meaning seeds saved from your harvest will grow plants true to the parent variety. This makes it an excellent candidate for building a self-sustaining garden.