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key growing information
How to Grow Hyssop
How to grow hyssop from seed: direct sowing or transplants, spacing, sun, lean rocky soil, hardiness, and harvesting flowering tops.
By Hensley’s Seed Co.
Hyssop - Key Growing Information
DAYS TO GERMINATION:
Usually 5–21 days.
SOWING:
Sowing in place is recommended. In spring, plant about 1/4" deep at roughly one seed per inch in rows 18" apart, eventually spacing plants 6–12" apart. For transplants, sow several seeds 1/4" deep in flats in early spring. Thin or prick out to one seedling per cell once they're big enough to handle, and plant out 6–12" apart when a few inches tall.
LIGHT PREFERENCE:
Full sun is best. Hyssop grows in part shade but gets leggy.
SOIL REQUIREMENTS:
Prefers light, rocky ground over rich, moist soil.
PLANT HEIGHT:
Grows about 16–24" tall.
PLANT SPACING:
Space plants 6–12" apart.
HARDINESS ZONES:
Hardy in Zones 3–9. Kept as a clipped ornamental shrub, it does better to about Zone 6.
HARVEST:
Cut flowering tops, or whole plants, just as blooming starts, usually in midsummer. Bundle them and hang in the shade to dry.
SCIENTIFIC NAME:
Hyssopus officinalis
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