Seed Treatment:
Cold stratification improves germination. Place seeds in a sealed plastic bag with a moist paper towel and refrigerate for 7–14 days.
Check weekly: ? If seedlings sprout in the fridge, gently remove and plant them right away.
Germination Temperature:
Sow at 50–55°F (10–13°C). Larkspur needs cool temperatures to germinate—avoid warm rooms or heated trays.
Germination Time:
Expect germination in 14–21 days, though it can take up to 30 days in cooler or fluctuating conditions.
How to Sow:
Sow directly outdoors in fall or early spring. If starting indoors, sow in trays with well-draining soil. Cover lightly—seeds need darkness to germinate. Keep soil evenly moist but not soggy.
Light Requirements:
Full sun is best. Once established, larkspur is drought-tolerant and thrives in sunny garden spots.
Post-Germination Care:
Transplant seedlings outdoors when they have a few true leaves. Harden them off gradually to prevent shock. Space plants 6–12 inches apart. Water regularly until established. Mulch to retain moisture.
Growing Tips:
Larkspur dislikes being transplanted, so direct sowing is ideal if climate permits. Blooms best in cool spring weather. Tall stems may need staking in windy areas.
? Attracts:
Bees ?, butterflies ?, and other pollinators love larkspur flowers!