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Hibiscus 'Blue River II'
Butterfly IconDeer Resistant IconRock Garden Icon

Plant Type: Perennials

Huge, dinner plate sized flowers sit atop robust, shrub-like plants from mid to late summer. 'Blue River II' is especially long-blooming. Each successive spring will bring larger flowers. This variety produces pure white flowers with no contrasting eye. The foliage of 'Blue River II' bears a hint of blue, giving the plant an overall cooling effect, great for those hot summer days in the garden. It's hard to believe this tropical-looking beauty is hardy to zone 4!

Currently not available for online purchase.

Growing & Maintenance Tips:

Hibiscus love the sun and need moist, well-drained soil. Keeping these plants watered will result in larger flowers and lush foliage. Deadheading may prolong the bloom period. It is best to plant Hibiscus in the garden before the heat of the summer arrives, and should be heavily mulched the first winter. In spring, cut back any remaining stems before new growth appears. Be advised that this species is always one of the last to emerge in spring. Its vigorous growth rate more than makes up for this late start, however. Japanese beetles find these plants especially delicious.

Flower Color

Pure white

Foliage Color

Plant Spread

3-4 ft.

Good Companions

Aster-New York (Aster dumosus), Coneflower-Purple (Echinacea purpurea), Grass-Ornamental (Miscanthus sinensis), Iris-Siberian (Iris sibirica), Snakeroot-Chocolate (Eupatorium rugosum), Starflowers (Boltonia asteroides)

Plant Height

4-5 ft.

Scape Height

Hardness Zone


Soil Moisture

Average and consistent water needs

Characteristics & Attributes


Border, Specimen, Bog Plant

Bloom Time

Critter Resistance

Deer resistant


Full sun to part shade

Growth Rate


Seasonal Interests