Hyssop: Sowing, planting and harvest calendar
How do you sow hyssop indoors?
Sow hyssop under cover in spring, allowing enough time for seedlings to develop before planting out. In a temperate climate, March or April is a useful guide, but adjust the timing to your conditions and the seed packet. Choose a bright place where you can keep the pots protected while the plants are small.
Use clean pots or modules with drainage holes and a fine, well-drained seed compost. Moisten it before sowing and firm the surface lightly. Sow sparingly and cover the seeds with a thin layer of compost, about 5 mm unless your packet recommends otherwise. Label the pots with the plant name and date.
Keep the compost evenly moist without saturating it. Water gently so you do not displace the seeds. Germination often takes two to three weeks, with some variation between batches and conditions. Once seedlings emerge, give them plenty of light and ventilation. Thin crowded seedlings or move them into individual pots when they are large enough to handle.
Gradually acclimatise the young plants to outdoor conditions before planting them into sunny, well-drained ground after the last frosts. Allow around 40 to 45 cm between plants, adjusted to the variety’s mature size. Water after planting and monitor moisture until they establish; mature hyssop tolerates dryness better than new seedlings.
How do you sow hyssop outdoors?
When does hyssop flower?
