Wonderful for late summer bloom, true hyssop is an easy-care, first-year flowering perennial (USDA zones 3–11) that brings bees, beneficial insects, and butterflies to the garden. This ancient herb has been used by many cultures for its medicinal and culinary value as well as its beauty. Sow for a short hedge along paths or mix with other perennials. Ideal in rock and herb gardens and is a nice cut flower.
Botanical Name: Hyssopus officinalis
Native: Africa, Asia, Europe
Hardiness: Perennial in USDA zones 3–11
Plant Dimensions: 12″–24″ tall
Variety Information: 2″–6″ long spikes with many tubular, purple-blue flowers
Exposure: Full sun to part shade
Bloom Period: Summer
Attributes: Attracts Beneficial Insects, Attracts Pollinators, Cut Flower, Deer Resistant, Drought Tolerant
When to Sow Outside: 2 to 4 weeks after your average last frost date. May also be sown in late fall for spring germination.
When to Start Inside: RECOMMENDED. 6 to 8 weeks before your average last frost date.
Days to Emerge: 14–31 days
Seed Depth: Press into surface
Seed Spacing: A group of 3 seeds every 12″
Thinning: When 1″ tall, thin to 1 every 12″