Streambank Wild Hollyhock, Wild Hollyhock, Mountain Globemallow
Iliamna rivularis (Wild Hollyhock) is a perennial wildflower boasting showy terminal racemes of pink, rose-purple or nearly white flowers, 2-3 in. wide (5-7 cm), over a long season. Blooming in early to late summer, they are borne from the upper leaf axils on stout stalks. The foliage of large leaves is broadly heart-shaped with triangular lobes. Wild Hollyhock reproduces by seed and is not rhizomatous. The seeds have a smooth, hard coat and require a heat treatment for germination. They remain viable for at least a few hundred years! Wild Hollyhock occurs on mesic sites in deep, moist, but well-drained soil. It commonly grows on forested slopes, in meadows, along streambanks, and in disturbed areas. It flowers profusely after a disturbance such as a wildfire but is quickly replaced by other vegetation. Wild Hollyhock can be used in beds and borders as well as informal sites such as prairies and meadows.
| Hardiness |
3 - 8 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Malvaceae |
| Exposure | Full Sun |
| Season of Interest | Summer (Early, Mid, Late) |
| Height | 3' - 6' (90cm - 180cm) |
| Spread | 2' - 3' (60cm - 90cm) |
| Spacing | 36" (90cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Showy |
| Native Plants | United States, Midwest, Pacific Northwest, Southeast, Southwest, Rocky Mountains, Illinois, Indiana, Idaho, Oregon, Washington, Virginia, Nevada, Colorado, Montana, Utah, Wyoming |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
| Hardiness |
3 - 8 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Malvaceae |
| Exposure | Full Sun |
| Season of Interest | Summer (Early, Mid, Late) |
| Height | 3' - 6' (90cm - 180cm) |
| Spread | 2' - 3' (60cm - 90cm) |
| Spacing | 36" (90cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Showy |
| Native Plants | United States, Midwest, Pacific Northwest, Southeast, Southwest, Rocky Mountains, Illinois, Indiana, Idaho, Oregon, Washington, Virginia, Nevada, Colorado, Montana, Utah, Wyoming |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
How many Iliamna rivularis (Wild Hollyhock) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Iliamna rivularis (Wild Hollyhock) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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