Polygala myrtifolia
September Bush
| Family |
| Polygalaceae |
| Genus |
| Polygala |
| Species |
| myrtifolia |
| Category |
| Tropicals |
| Type |
| Shrub (deciduous) |
| USDA Hardiness Zone |
| 9 |
| Canadian Hardiness Zone |
| Requires cool season protection under glass. |
| RHS Hardiness Zone |
| H4 - H3 |
| Temperature (°C) |
| -7 - (-1) |
| Temperature (°F) |
| 20 - 30 |
| Height |
| 1 - 2.5m |
| General Description |
| An erect shrub or small tree with many branches. |
| Cultivation |
| Grow in partial shade or sun in well drained, moist soil in the winter, and reduced moisture in the winter. |
| Growth |
| Fast |
| Pests |
| Whitefly may be a problem pest when the plants are grown under glass. |
| Habitat |
| Open woodlands, grasslands, evergreen forests, and coastal areas such as dunes and rocky shores. |
| Leaf Description |
| Leaves are 2.5 - 5 cm, alternating, and are elliptic-oblong or obovate in shape. |
| Flower Description |
| Flowers are large (13 - 18 mm) and rich purple in colour. Blooming at the end of short, terminal racemes, they close at night. |
| Notable Specimens |
| Tresco Abbey Garden, Tresco, Isles of Scilly, United Kingdom. |
| Propagation |
| Propagate through seed in the spring or by softwood or semi-ripe cuttings in a sandy propagating mix with a gentle bottom heat. |