Hardiness zone | 4 |
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Blooming | June - August |
Height (cm) | 60-100 |
Spreading (cm) | 60 |
Soil | Cool or moist |
Formulation | Untreated |
Giant St.John’swort
Giant St.John’swort
5.00$
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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.
Sowing method : 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. 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.
Cultivation mode
Sowing method : 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. 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 |
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Sowing guide |