Its hard to believe that this tropical
looking plant is hardy to zone 4! Enormous, dinner plate sized white
flowers explode from robust, shrub-like plants. Blooms begin
to appear in mid summer and continue to unfurl right up until the
first frost. Blue River II is considered to be a heavy bloomer
and with age the flowers get larger and larger. The pure white
flowers have no contrasting eye, making them perfect for the all
white or moonlight garden. Leaves have a subtle hint of blue in
them creating a very elegant backdrop for the large pure white flowers.
Introduced by Dr. Harold F. Winters who found this beautiful perennial
growing along the bank of the Blue River in southern Oklahoma -
hence the name. Hibiscus are true sun lovers and need a rich moist
soil. While plants will grow in dryer soils - providing the
roots with adequate water will reward you with larger blooms and
lush foliage. Read our garden guide Planting
Hibiscus for more details. Prune back any remaining
stems in spring before new growth appears.
Zone: 4 - 9
Blooms: Jun - Oct
Height: 4' - 5'
Light: full sun
Soil: rich / moist
Size Shipped: 4.5" pot
Culture Guide Explained
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Hibiscus 'Blue River'
Other Hardy Hibiscus
Turn of the Century