Please note: Our Plant Encyclopedia is for reference only and does not reflect current inventory or availability.
Fall Sale! 50% off evergreens (excluding boxwoods) and grasses. 35% off shade trees and leafy shrubs. Perennials are $6. Includes potted and BnB (NO WARRANTY). 1 year warranty when purchased at full price. Tree planting is available at 1/2 the original cost.
Premium Cedar Mulch: 3 cubic foot bags are back in stock.
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. |
