Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Native
Life Cycle
Plant Height
Flower Color
Bloom Season
Further Information
Plant Characteristics
- Attracts Beneficial Insects
- Attracts Butterflies
- Attracts Pollinators
- Cut Flower
Growing Conditions
Plant Resistance
About True Hyssop Seeds
Hyssopus officinalis
Planting Hyssop
Plant Spacing
Hardiness Zones
Light Required
Plant Height
Planting Depth
Planting Details
| Seed Depth | Press into surface |
|---|---|
| Seed Spacing | A group of 3 seeds every 12" |
| Thinning | When 1" tall, thin to 1 every 12" |
| Germination | 14–31 days |
| Start Indoors | RECOMMENDED. 6 to 8 weeks before your average last frost date. |
| Direct Sow | 2 to 4 weeks after your average last frost date. May also be sown in late fall for spring germination. |
Find Your Frost Date & Grow Zone
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
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