Mallow ninebark (Physocarpus malvaceus)

Mallow ninebark

The branches are hairless, and older ones have shreddy bark. The leaves have three to five lobes and serrated edges. Dark green when mature, they turn brownish red by early fall. The inflorescence is a corymb of flowers that have white petals measuring about 4 millimeters in length. The fruit is a follicle roughly one centimeter long.

Scientific classification

Species

Mallow ninebark (Physocarpus malvaceus)

Roses, elms, figs, and allies

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Perennial

Lifespan

Shrub

Plant Type

91 cm to 1.8 m

Plant Height

Spring, Summer

Growth Season

Rapid

Growth Rate

Images of Mallow ninebark

Attributes of Mallow ninebark

Growth Rate

Exhibiting a rapid growth rate, mallow ninebark flourishes significantly during the spring and summer seasons. This rapid growth propels the plant's developmental trajectory, inducing profuse leaf production and a substantial increase in plant height. Within its active growing season, tumultuous changes can be observed in mallow ninebark, a testament to its dynamic growth speed. Horticulturally interesting, mallow ninebark's growth speed results in an exceptionally bushy plant with bountiful foliage, making it an attractive choice for dynamic landscaping.

Care Guide for Mallow ninebark

Twice per week

Water

Full sun

Sunlight

0 - 32 ℃

Ideal Temperature

Water: Originating from humid regions, mallow ninebark thrives in evenly moist soil and benefits from stable humidity. Optimal watering is twice a week, adapting well to outdoor climates with natural rainfall. It displays deciduous tendencies by shedding leaves based on water availability and seasonal conditions.

Fertilize: To care for mallow ninebark, apply balanced fertilizers annually in spring for growth and flowering. Use high nitrogen during early growth or rejuvenation, and water after fertilization. Avoid fall fertilization to prevent frost damage. Consider slow-release formulas for consistent nutrient supply.

Pruning: Mallow ninebark is a hardy, multi-stemmed shrub with attractive bark and foliage. Prune in early spring to shape and remove dead wood, while avoiding heavy pruning to maintain blooming. Clean, sharp tools are essential to prevent disease and improve air circulation and growth.

Propagation: Mallow ninebark is an ornamental shrub that propagates best from semi-hardwood cuttings measuring 4-6 inches. Use healthy, non-flowering stems with 2-3 leaf sets, dip in rooting hormone, and plant in moist, well-draining media, maintaining consistent moisture and humidity for successful rooting.

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