Sale! 50% of all potted evergreens including shrubs and trees (excluding boxwood). Also 50% off all maples including potted and B&B (excluding Japanese and Korean Maples). Good through August 31st. In-stock only. Sale items do not carry a warranty.
Please note: Our Plant Encyclopedia is for reference only and does not reflect current inventory or availability.
Black Alder
Alnus glutinosa
A tough adoptable plant; few pest problems; tolerates short term flooding; flower and fruiting best in full sun; easy to transplant
| Light Requirement: | Full Sun |
|---|---|
| Cold Hardiness: | Zone 4 |
| Height: | 40 to 60 |
| Spread: | 20 to 40 |
| Flower: | Not significant. |
| Foliage: | Glossy green. |
| Form: | Rounded, narrow. |
