Sitka mountain-ash (Sorbus sitchensis)

Sitka mountain-ash

The sitka mountain-ash (*Sorbus sitchensis*) is named after the Sitka, one of the Tlingit tribes. It grows from the coast up to subalpine slopes. The fruit remains on the tree for most of the winter, so it is an important food source for birds, particularly grouse, cedar waxwings, and grosbeaks. Dear, elk, moose, and bears also eat this plant.

Scientific classification

Species

Sitka mountain-ash (Sorbus sitchensis)

Roses, elms, figs, and allies

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Perennial

Lifespan

Tree, Shrub

Plant Type

Spring, Summer

Bloom Time

8 cm to 10 cm

Flower Size

White

Flower Color

Deciduous

Leaf type

5 - 32 ℃

Ideal Temperature

Spring, Summer

Growth Season

Slow

Growth Rate

Images of Sitka mountain-ash

Attributes of Sitka mountain-ash

Growth Rate

Sitka mountain-ash's slow growth rate is visibly demonstrated in spring and summer, characterized by a gradual emergence of leaflets, a modest increase in height, and less frequent flowering periods. This understated development conserves resources, enhancing the plant's resilience in tenuous climates, a strategic horticultural adaptation.

Care Guide for Sitka mountain-ash

Every 2-3 weeks

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Sitka mountain-ash thrives in dry conditions due to its adaptation to intermittent moisture, requiring watering every 2-3 weeks. It is resilient in various climate zones and needs less water during dormancy, making it suitable for outdoor environments with fluctuating weather.

Fertilize: For sitka mountain-ash, use a balanced fertilizer during growth and switch to high-nitrogen pre-flowering. Apply quarterly, with lighter winter doses to prevent root burn. Adjust based on size and soil fertility, ensuring runoff prevention for environmental protection while timing ensures optimal nutrient uptake.

Pruning: The deciduous shrub sitka mountain-ash features white flowers and red berries. Prune in early spring before new growth, removing dead or diseased branches and thinning crowded areas. This practice enhances air circulation, light penetration, and promotes healthier growth, resulting in increased flowering and fruiting.

Propagation: Sitka mountain-ash propagates optimally from semi-hardwood cuttings treated with rooting hormone. Use well-draining soil and maintain consistent moisture without waterlogging. Indirect light is ideal for initial growth stages, and regular pest and disease monitoring is crucial for healthy development.

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