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Full sun to light shade.
In hotter climates, appreciates a bit of afternoon shade.
Prefers well-drained, moderately fertile soil.
Hates heavy, wet clay—good drainage is everything.
Slightly alkaline soil is a bonus.
Larkspur is a cool-season annual.
Best sown when soil is cool.
In your region (Oregon magic zone):
🌱 Fall sowing = strongest plants and earliest blooms.
🌱 Early spring sowing also works, but blooms later.
From seed (recommended):
Direct sow outdoors (they hate transplanting).
Cover seeds lightly—darkness helps germination.
Germination: 10–20 days.
Thin to 8–12 inches apart.
Keep soil lightly moist during germination.
Once established, moderate watering.
Avoid soggy roots.
Stake taller varieties (they can reach 3–4 feet).
Deadhead for extended bloom, but not forever.
Let some plants go to seed for natural reseeding.
Late spring to early summer.
They fade when heat arrives—very poetic, honestly.
Loved by bees and pollinators.
Excellent cut flower (long vase life).
Slight crowding = straighter stems.
Avoid rich fertilizer—too much = floppy growth.
Mix colors for that wild meadow look customers can’t resist.
⚠️ Tiny but important note:
Larkspur is toxic if eaten (like foxglove), so not ideal where pets or livestock graze.
Full sun to light shade.
In hotter climates, appreciates a bit of afternoon shade.
Prefers well-drained, moderately fertile soil.
Hates heavy, wet clay—good drainage is everything.
Slightly alkaline soil is a bonus.
Larkspur is a cool-season annual.
Best sown when soil is cool.
In your region (Oregon magic zone):
🌱 Fall sowing = strongest plants and earliest blooms.
🌱 Early spring sowing also works, but blooms later.
From seed (recommended):
Direct sow outdoors (they hate transplanting).
Cover seeds lightly—darkness helps germination.
Germination: 10–20 days.
Thin to 8–12 inches apart.
Keep soil lightly moist during germination.
Once established, moderate watering.
Avoid soggy roots.
Stake taller varieties (they can reach 3–4 feet).
Deadhead for extended bloom, but not forever.
Let some plants go to seed for natural reseeding.
Late spring to early summer.
They fade when heat arrives—very poetic, honestly.
Loved by bees and pollinators.
Excellent cut flower (long vase life).
Slight crowding = straighter stems.
Avoid rich fertilizer—too much = floppy growth.
Mix colors for that wild meadow look customers can’t resist.
⚠️ Tiny but important note:
Larkspur is toxic if eaten (like foxglove), so not ideal where pets or livestock graze.