Dwarf Oregon-Grape (Berberis nervosa)

Dwarf Oregon-Grape

Also known as: Cascade Barberry, Dull Oregon-Grape

Dwarf Oregon-Grape (Berberis nervosa) is an evergreen perennial shrub that grows up to 61 cm tall. Yellow flowers bloom spring through summer. The fragrant flowers attract pollinators during spring. Berries provide food for bird and mammals during summer and fall. Foliage offers shelter to many small woodland animals in winter. Prefers light sun mostly shade.

Scientific classification

Species

Dwarf Oregon-Grape (Berberis nervosa)

Buttercups, poppies and allies

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Toxic to Humans

Toxicity

Perennial

Lifespan

Shrub

Plant Type

Green

Leaf Color

6 mm to 1.02 cm

Flower Size

Yellow, Green

Flower Color

Winter dormancy

Dormancy

Evergreen

Leaf type

15 - 35 ℃

Ideal Temperature

Spring, Summer

Growth Season

Slow

Growth Rate

Images of Dwarf Oregon-Grape

Attributes of Dwarf Oregon-Grape

Growth Rate

With a slow growth rate, the Dwarf Oregon-Grape (dwarf Oregon-Grape) matures gradually through spring and summer, allowing a meticulous shaping of its holly-like foliage. The tardy pace ensures maximum nutrient absorption and supports healthy leaf production, with fastidiously grown clusters of yellow flowers and berries. Fluctuations in growth speed are minimal, with spring and summer being the primary growth periods, making the growth pattern of dwarf Oregon-Grape a predictable horticultural element.

Toxicity

Dwarf Oregon-Grape roots contain berberine, toxic in high doses. Pregnant women should avoid dwarf Oregon-Grape due to fetal harm risk. Berberine can also cause brain damage in newborns and young children.

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Care Guide for Dwarf Oregon-Grape

Every 1-2 weeks

Water

Partial sun

Sunlight

15 - 35 ℃

Ideal Temperature

Water: Dwarf Oregon-Grape thrives in balanced moisture environments and prefers consistent hydration, requiring water every 1-2 weeks. As an evergreen, it retains leaves year-round and needs regular watering in colder months to avoid desiccation, despite some drought tolerance.

Fertilize: For optimal growth, dwarf Oregon-Grape requires balanced nutrition with slow-release fertilizers in spring and high-nitrogen options bi-monthly until late summer. Avoid over-fertilization, adjust for seasonal growth, and water after application to prevent root burn. Mature dwarf Oregon-Grape needs less frequent fertilizing than younger plants.

Pruning: Dwarf Oregon-Grape may not require pruning, but it enhances vigor when done. Prune in spring to shape and thin the crown, improving ventilation and reducing humidity. Avoid cutting more than 1/3 of the canopy, use angled cuts, and always disinfect tools before pruning.

Propagation: Dwarf Oregon-Grape propagates effectively through cuttings taken in spring or summer. While propagation can be moderately challenging, new leaf growth indicates success. To promote good root development, trim leaves and apply rooting hormone.

Repotting: Repot dwarf Oregon-Grape every 2-3 years in early spring for optimal growth. Choose a slightly larger container with good drainage to support its spreading roots. Post-repotting, maintain consistent moisture and provide dappled shade to enhance recovery and promote vibrant foliage.

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