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Details
Saint John’s Wort is a well-investigated medicinal herb that traditionally has been used for wounds, general aches and pains, and is more famous in its use with mild depression and insomnia. This plant is well-suited for use in pollinator habitat restoration and erosion control. Grown from seed, it will create the strongest tap roots.
Caution: can become invasive in some areas, though not easily in natural habitats, and can be toxic in large amounts to some livestock.
Michigan Seeds and Plants grown on our farm, Renegade Acres, in Howell, MI!
Certified Organic by Oregon Tilth.
Additional Info
| Botanical Name | Hypericum perforatum |
|---|---|
| Life Cycle | Perennial |
| Min. Time to Germinate | 30 Days |
| Max. Time to Germinate | 3 Months |
| Depth to Sow Seeds | Just Cover; barely cover with soil |
| When to Sow | Indoors 6-8 weeks before last spring frost, Outdoors after all danger of spring frost is past, Outdoors in early spring, a month before the last spring frost |
| Growing Height | 18-24 in. (45-60 cm) |
| Plant Spacing | 18-24 in. (45-60 cm) |
| Hardiness | USDA Zone 4a: to -25F, USDA Zone 4b: to -20F, USDA Zone 5a: to -15F, USDA Zone 5b: to -10F, USDA Zone 6a: to -5F, USDA Zone 6b: to 0F, USDA Zone 7a: to 5F, USDA Zone 7b: to 10F, USDA Zone 8a: to 15F, USDA Zone 8b: to 20F |
| Sun Exposure | Full Sun, Sun to Partial Shade |
| Danger | N/A |
| Bloom Color | Bright Yellow |
| Bloom Time | Mid-Summer |
| Other Details | Average Water Needs; Water regularly; do not overwater |
| Soil pH Requirements | 5.1 to 5.5 (strongly acidic), 5.6 to 6.0 (acidic), 6.1 to 6.5 (mildly acidic), 6.6 to 7.5 (neutral) |
| Propagation Methods | From seed; direct sow after last frost, From seed; direct sow outdoors in fall, From seed; sow indoors before last frost, From seed; winter sow in vented containers, coldframe or unheated greenhouse |
| Seed Collecting | Allow pods to dry on plant; break open to collect seeds |
| Seeds Per Pack | 100 |
