Single-leaf ash (Fraxinus anomala)

Single-leaf ash

Single-leaf ash is a drought-resistant shrub or small tree native to the arid regions of southwestern North America. It typically grows 3-5 meters tall, characterized by its twisting branches, ash-gray bark, and compound leaves with 3-7 leaflets. In spring, single-leaf ash showcases clusters of yellow-green flowers, followed by unique winged fruit, adapting it well to its rugged desert and rocky habitats.

Scientific classification

Species

Single-leaf ash (Fraxinus anomala)

Mints plantains olives and allies

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Perennial

Lifespan

Tree

Plant Type

10 - 35 ℃

Ideal Temperature

Images of Single-leaf ash

Attributes of Single-leaf ash

Growth Rate

In Spring and Summer, single-leaf ash exhibits a moderate growth pace. New shoots and leaves sprout, enlarging the plant's size steadily, while its height increases noticeably. This balanced progress allows single-leaf ash to build robust, resilient structures, often adaptable to environmental changes. Its growth pattern varies in other seasons but predominantly flourishes in these warmer months.

Distribution of Single-leaf ash

Distribution Map

Single-leaf ash is native to regions in North America, specifically within the interiors of the southwestern area. Its range extends into parts of the mountainous and arid landscapes, where it has adapted to local conditions. The plant has not seen a wide spread introduction outside its native range and largely remains confined to its original habitat.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Dry canyons and hillsides including rocky slopes in upper desert, woodland and Ponderosa Pine forest

Care Guide for Single-leaf ash

Every week

Water

Full sun

Sunlight

10 - 35 ℃

Ideal Temperature

Water: Single-leaf ash, native to arid regions, exhibits high drought tolerance and requires weekly watering in cultivation. It thrives in well-draining soil, reflecting its rocky terrain origins, as overwatering can harm its health due to its preference for drier conditions.

Fertilize: Single-leaf ash thrives in infertile soil but benefits from nutrients to enhance growth and combat pests. Apply a slow-release 10:10:10 fertilizer once every fall and water well. For spring plantings, fertilize in late summer; for fall plantings, fertilize the following spring to avoid root burn.

Pruning: Single-leaf ash features a unique single leaf structure. Prune in early spring, focusing on dead or diseased branches and thinning crowded areas for better air circulation. Avoid heavy pruning to maintain its natural shape, enhancing health and growth. Consult reliable sources for specific techniques.

Propagation: Single-leaf ash can be propagated using semi-hardwood cuttings from healthy parent trees with leaves. Apply rooting hormone and use well-draining potting medium. Maintain consistent moisture and warmth for root development, while avoiding waterlogging to prevent rot.

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