| Hardiness zone | 4 |
|---|---|
| Blooming | July - August |
| Height (cm) | 60-100 |
| Spreading (cm) | 60 |
| Soil | Cool, moist |
| Formulation | Untreated |
Giant St-John’s-wort
Giant St-John’s-wort
5.25$
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The Hypericum pyramidatum is a beautiful native perennial whose lemon-yellow flowers can reach 5 cm in diameter. Very floriferous in rich soil, it forms copses with generous foliage.
Sun
Cultivation mode
Plantation : Mix seeds with an equal amount of damp sand or vermiculite. Place the mixture in a sealed plastic bag. Store the bag in a refrigerator or cool storage room for 30 to 90 days. Sow seeds when there is no risk of ground frost.
Soil : cool, moist
Culturals practices : Sow seeds on the surface without covering after sowing. These seeds are very small and need light to germinate. Seeds can be mixed with fine sand or talcum for a uniform sowing.
| Latin name |
Hypericum pyramidatum |
|---|---|
| Sowing guide |
