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key growing information
How to Grow Lavender From Seed
How to grow lavender from seed: starting transplants, light for germination, planting depth and spacing, winter care, soil and pH, and harvesting flower spikes.
By Hensley’s Seed Co.
Lavender - Key Growing Information
DAYS TO GERMINATION:
Allow 14–21 days at 65–70°F (18–21°C).
SOWING:
Transplants are recommended: sow 1/8" deep in a flat 8–10 weeks before the last frost; the seed needs some light to germinate. Pot seedlings up individually once they're big enough to handle, and plant out in spring after the last frost. Set plants shallow, with the soil line just above the top roots, 12–18" apart in rows 24–36" apart. In late fall, cut plants back below the flower stems and mulch heavily. From the second year, you can take cuttings from August through November, once stems are semi-firm but before a hard freeze. Direct sowing isn't recommended.
LIGHT PREFERENCE:
Full sun.
SOIL REQUIREMENTS:
Choose light, gravelly, well-drained soil, ideally in a sheltered spot facing south. Lavender prefers soil from slightly acidic to slightly alkaline; extension guides suggest roughly pH 6.5–7.5, so lime soil that tests more acidic.
PLANT HEIGHT:
Grows about 12–18" tall.
PLANT SPACING:
Space plants 12–18" apart.
HARDINESS ZONES:
Varies.
HARVEST:
On a warm, dry, sunny day, cut flower spikes just before the flowers open. Hang them to dry in a dry, airy place out of direct sun.
SCIENTIFIC NAME:
Lavandula angustifolia
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