Mountain Hollyhock
Iliamna rivularis
Plant Details:
Plant Type: Perennial
Plant Family: Malvaceae
Plant Description: A native wild hollyhock found largely along streambanks, on forested slopes, and in disturbed areas. It flowers profusely following heat treatments such as wildfires. Tall spikes are covered with large showy white to pink blooms. Leaves are large and broadly heart shaped.
Maintenance:
Maintenance Type: Perennial - Herbaceous
Plant Care: Perennial - Herbaceous (soft-stemmed plants that die back in winter and regrow in spring): Remove spent blooms to promote rebloom later. Some plants tend to flop over after the first bloom and attempt to regrow from the base; in these cases, the old stems can be cut away in summer. As plants become dormant in the fall, remove dead leaves and stems.
Plant Attributes:
Mature Size: 3-6' tall x 2-3' wide
Utah Native: Yes
Plant Select: No
Pollinator Friendly: Yes
Localscapes: Infill Plant, Perimeter Plant, Foundation Plant
Foliage Interest: No
Foliage Colors: Green
Bloom Colors: Pink, White
Bloom Seasons: Late Spring
Bloom Period: May - Jun
Growing Conditions:
Hardiness Zone: 5 to
Light Requirement: Full Sun (6+ hrs sun), Part Shade (4-6 hrs morning sun), Part Sun (4-6 hrs afternoon sun)
Irrigation Requirement: 
Moderate (1/2" every 7-10 days)
Moderate (1/2" every 7-10 days)
Salt Tolerant: Unknown
Deer Resistant: Unknown
Garden Location:
-
Neighborhood Landscapes
- Waterwise Woodlands
-
Spring -
Summer -
Fall -
Winter
