species
Hypericum calycinum
Rose of Sharon
Scale drawing from this record, beside a 1.7 m figure.
Hypericum calycinum belongs to the family Hypericaceae, also known as Rose of Sharon, introduced to the UK. It reaches 60 cm tall and 1.5 m across in about 10 years. It grows in full sun, part shade or shade, on loam, sand or chalk soil, where the ground is acid, neutral or alkaline and in well drained or dry conditions, and suits average positions. It tolerates coastal exposure. It flowers from June to August and is evergreen. Its RHS hardiness rating is H6 (hardy, very cold winter): −20 to −15°C.
Assembled from the attributes recorded below.
What this plant needs
- Size at maturity
- 60 cm tall × 1.5 m across, after about 10 years
- Hardiness
- H6 (RHS)
- Aspect
- Full sun, Part shade, Shade
- Soil
- Loam, Sand, Chalk
- Acidity
- Acid, Neutral, Alkaline
- Moisture
- Well drained, Dry
- Exposure
- Average
- Coastal
- Tolerates salt wind
- In the UK
- Introduced
When it flowers
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Evergreen — it holds its leaves through the winter.
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