Prairie Spire Green Ash (Fraxinus pennsylvanica 'Prairie Spire') is a cultivar of the native Green Ash tree that offers a narrow, columnar form, making it an excellent choice for landscapes with limited space. The foliage consists of glossy, dark green leaves that turn a vibrant yellow in the fall, providing stunning autumnal color.
- Size: Height of 40 to 50 feet with a spread of 15 to 20 feet.
- Location: Plant in a location with full sun to partial shade.
- Soil: Prefers moist, well-drained soil but can tolerate a wide range of soil types, including clay and alkaline soils.
- Watering: Provide regular watering, especially during dry periods, to maintain soil moisture.
- Fertilization: Apply a balanced fertilizer in early spring to promote healthy growth.
- Pruning: Minimal pruning is required, but you can prune to maintain its columnar shape and remove any dead or damaged branches.
- Pest and Disease Control: Monitor for common ash tree pests such as borers and aphids, and treat as necessary. Also, watch for diseases like ash yellows and anthracnose and take appropriate preventive measures.
- Mulching: Apply a layer of mulch around the base of the tree to conserve moisture and suppress weed growth.
- Winter Care: Protect young trees from frost and winter damage by wrapping the trunk with tree wrap and avoiding excessive salt exposure from de-icing agents.
