Cardinal Light Red Hydrangea is a compact deciduous shrub that blooms on old wood. Its serrated dark green leaves turn purple in fall. The color of the large panicles of mophead flowers depends on the soil PH - The signature rich cardinal red is in alkaline soils, while acidic soils produce deep mauve flowers. It takes an extended time for the colors to develop in the flowers, which open green, and come into full color when most other flowers are fading. The flowers attract pollinators. Best bloom in partial sun and rich, moist well-drained soils.
Read about the introduction to our new Hydrangea Collection and limited time promotion here.
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Type: |
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Origins: |
East Asia |
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Height: |
3' - 4' |
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Spread: |
3' - 4’ |
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Spacing: |
3’ |
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USDA Hardiness Zone: |
6 - 9 |
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Culture: |
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Bloom Color: |
Purple (acidic), Red (alkaline) |
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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, Itea, Azalea
IMAGES: Dominicus Johannes Bergsma, Hydrangea macrophylla 05, CC BY-SA 3.0, (2) I, MJJR, Hydrangea macrophylla 01 Crop, CC BY 2.5
*As plants have ranges in appearance they may not appear as the images shown.
