Cityline Rio Hydrangea is a dwarf hardy deciduous shrub with a tidy habit of upright stems and leathery disease resistant leaves. The large mophead panicle flowers' color can be various shades depending on the PH of the soil- in acidic soils the flowers will be blue while alkaline flowers will be vivid purple- and bloom throughout summer on old wood. Best bloom in partial sun and rich, moist well-drained soils. Note: The flowers may be pink in neutral soil.
Read about the introduction to our new Hydrangea Collection and limited time promotion here.
Type: |
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Origins: |
East Asia |
Height: |
2' - 3' |
Spread: |
2' - 3’ |
Spacing: |
2.5' |
USDA Hardiness Zone: |
5 - 9 |
Culture: |
|
Bloom Color: |
Blue (Acidic)/Purple (Alkaline) |
Season of Interest: |
MAINTENANCE NEEDS: Medium Maintenance. Mulch soil to maintain moisture and overwinter. If pruning is needed do so after flowering. Slight susceptibility to bud blight, wilt, leaf spot, and mildew. Aphids are occasional problems.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Foundation Plantings, Hedges, Containers.
COMPANION PLANTS: Hibiscus, Deutzia, Host
IMAGE: Photos by Proven Winners, Cityline® Rio Bigleaf Hydrangea
*As plants have ranges in appearance they may not appear as the images shown.