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key growing information
Growing Lemon Balm From Seed
How to grow lemon balm from seed: starting transplants, light for germination, direct sowing, spacing, soil and harvesting leaves.
By Hensley’s Seed Co.
Lemon Balm - Key Growing Information
DAYS TO GERMINATION:
Seedlings appear in 7–14 days at 65–70°F (18–21°C).
SOWING:
Transplants are recommended: sow in flats 6–8 weeks before the last frost. Press the seed gently onto the surface, since it needs light to sprout, and mist lightly. Move seedlings to their own pots at 4 true leaves, and plant out 12" apart after the last frost. To sow in place, plant in spring or early fall at roughly one seed per inch. Press the seed lightly onto the soil, as it needs light, and keep it moist until it comes up. Thinning is optional; if you do, leave plants up to 12" apart in rows 2' apart. Mulch where winters drop below 0°F (-18°C).
LIGHT PREFERENCE:
Full sun.
SOIL REQUIREMENTS:
Moist, well-drained soil of moderate fertility.
PLANT HEIGHT:
Grows about 18–26" tall.
PLANT SPACING:
Space plants 12" apart.
HARDINESS ZONES:
Hardy in Zones 4–9.
HARVEST:
Pick single leaves as soon as plants are established. Cut whole stems before flowering, handling them gently so the leaves don't bruise. Expect two cuttings in the first year. Use the leaves fresh where possible, since dried leaves brown and lose much of their scent.
SCIENTIFIC NAME:
Melissa officinalis
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