| Description | Aaron's beard (Hypericum calycinum) is a vigorous fast growing woody plant spreading by stolons. Produces a mass of yellow flowers in the summer. |
|---|---|
| Pronunciation | (hy-PER-ee-kum) |
| Plant Type | Shrubs Deciduous |
| Hardiness Zone | 5-8 |
| Sunlight | prefers full sun to part shade, producing more flowers in higher light conditions |
| Moisture | tolerates moderate drought and dry conditions, prefers average to moist conditions |
| Soil & Site | prefers well drained not to dry soil, slightly acid, tolerates pour conditions |
| Temperature | In severe winters the plant will die down to the roots. Reported to flower best in the cooler end of its hardiness zone. |
| Flowers | yellow, 5 petaled, bore singly or in groups of 2-3 (cymes), dense center tuft of protruding yellow stamens, anthers will turn red later in the bloom period |
| Fruit | capsule |
| Leaves | simple, opposite dark green above, glaucous below and has purple fall foliage |
| Stems | procumbent or spreading, stolons |
| Roots | fibrous |
| Dimensions | 11-24" and spreads rapidly by underground stolons. |
| Maintenance | can be come invasive |
| Propagation | cuttings, division |
| Native Site | Native to SE Europe and Asia minor. |
| Cultivar Origin | Introduced in 1676 |
| Misc Facts | AKA: St. John's Wort |
| Notes & Reference | #226-Shrubs and Vines for American Gardens (Donald Wyman) |
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