Streambank wild hollyhock (Iliamna rivularis)

Streambank wild hollyhock

The streambank wild hollyhock (Iliamna rivularis) grows at higher altitudes on forested slopes, alongside streams, and in disturbed areas. It favors moist but well-drained soil. Growing to a height of 91 to 183 cm., it bears tall spikes of white, pink or purple flowers which attract bees, butterflies, and birds. Its brown berries can be toxic to children.

Scientific classification

Species

Streambank wild hollyhock (Iliamna rivularis)

Mallows, rock-roses, and allies

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Perennial

Lifespan

Herb, Shrub

Plant Type

Summer

Bloom Time

Late summer

Harvest Time

91 cm to 1.8 m

Plant Height

90 cm to 1.8 m

Spread

8 cm to 10 cm

Flower Size

Pink, White, Lavender

Flower Color

Deciduous

Leaf type

Images of Streambank wild hollyhock

Attributes of Streambank wild hollyhock

Growth Rate

With a moderate growth rate, streambank wild hollyhock primarily extends during spring and summer. This speed allows sufficient time for maturity and bolsters strength in the branching structure. The slower pace assists in forming robust flower clusters, enhancing overall plant health. Variations in growth could occur, depending on seasonal factors, but attention mostly lies on the designated seasons.

Care Guide for Streambank wild hollyhock

Every week

Water

Full sun

Sunlight

0 - 25 ℃

Ideal Temperature

Water: Streambank wild hollyhock flourishes in streambank habitats, preferring regular moisture but tolerating brief dryness. Weekly watering promotes healthy growth. As a herbaceous perennial, it benefits from rainwater to balance its irrigation needs effectively.

Fertilize: For streambank wild hollyhock, use balanced fertilizers for optimal growth and blooms. Start with a slow-release granular formula and switch to biweekly liquid feed during peak growth. Avoid over-fertilization, especially in winter dormancy. New gardeners should wear gloves; compost can enhance soil health.

Pruning: Streambank wild hollyhock produces attractive pink flowers and prefers moist conditions. Prune in early spring to boost growth and remove damaged stems. Enhance air circulation by thinning crowded areas. Reduce older stems periodically, but avoid over-pruning to prevent stress, ensuring better flowering and vigor.

Propagation: Streambank wild hollyhock thrives in streambank areas, showcasing large, maple-like leaves and vibrant flowers. Propagation is best achieved by cleaning and stratifying seeds for a month before sowing in well-draining soil. They prefer partial shade to full sun and require consistent watering for strong root development.

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