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Hydrangea paniculata (panicle hydrangea) brings cone-shaped flower heads and excellent heat and sun tolerance compared to mophead types. They thrive in Malmesbury and greater Cape Town when planted in full sun to part shade with regular watering and good mulch. Flowers start lime-white, aging through cream to soft pink as the season progresses—beautiful in borders, feature pots, or light hedges.
Planting & care (quick guide)
Light: Full sun to part shade (Western Cape: morning sun + light afternoon shade is perfect; full sun ok with mulch & water).
Water: Moderate, consistent moisture—don’t let pots dry out in heat waves.
Soil: Fertile, well-drained with compost.
Feeding: Balanced slow-release in spring; liquid feed during active growth.
Pruning: Late winter/early spring—cut back last year’s growth by ⅓–½ to shape and boost new flowering wood.
Spacing: 1.0–1.5 m for screens/hedges (check each cultivar’s mature size).
Great uses
Feature shrub near entrances or patios
Sun-tolerant hydrangea for mixed borders
Cut-flower spikes for fresh arrangements
Large container specimen (40 cm+ pot)
FAQs
Do paniculatas change to blue/pink with pH? No—colour shift is maturity-based (white → blush).
Are they wind-resistant? Yes, with a sturdy structure; stake young plants in exposed sites.
When do they flower? Summer into early autumn in the Western Cape.