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Shrubby St. Johns Wort growing in a garden

How to grow shrubby st. johns wort

Hypericum prolificum

When to plant shrubby st. johns wort

Plant this deciduous shrub while dormant, in fall or early spring. Extension guidance rates fall (early enough for roots to establish before the ground freezes) as the best time and spring, just before growth begins, as the next best.

Shrubby St. Johns Wort is timed by season rather than your frost dates, so the planting calendar does not generate ZIP-specific dates for it. Check the cited sources below to fine-tune for your area.

Growing conditions

Lifecycle
Perennial
Spacing
12 to 48 in apart
Sun
Full sun
Soil pH
5 to 8.5

Common problems

  • root rot in wet soil

Sources

Last updated .