
Wild hollyhock
Iliamna rivularis
Wild hollyhock is a striking native perennial producing tall spikes of pale pink to lavender flowers that attract hummingbirds and pollinators throughout summer. It prefers moist, well-drained soil along stream banks or in woodland garden settings with partial shade, and benefits from regular watering during dry spells. Cut back spent flower stalks after blooming to encourage a tidy appearance and potential reblooming.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
36″
Watering Schedule
Every 7-10 Days • Water Thoroughly; Keep Soil Consistently Moist, Especially In Summer Heat
Soil pH
6 – 8.5
Temperature
-25° – 95°F
Mature Spread
up to 48″
Root Depth
Medium
Foliage
Coarse
Propagation: Seed, Division, Cutting
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jul 18, 2022 by ray bee (cc-by-sa)
No nurseries currently have this species in stock.