SCIENTIFIC NAME: Hydrangea quercifolia 'PIIHQ-I' JETSTREAM™
COMMON NAME: Jetstream™ Oakleaf Hydrangea
GARDEN SIZE: 5 to 6 feet tall by 4 to 5 feet wide
GROWTH RATE: Moderate
USDA ZONE: 5 to 8
EXPOSURE: Full sun to part shade; prefers some afternoon shade here in Tennessee. Provide a sheltered site to protect flower buds from harsh winter winds.
WATER & SOIL: Thrives in organically rich, moist, well-drained soil. Prefers consistent moisture and benefits from summer mulch to retain soil moisture. Tolerates medium water levels but dislikes prolonged drought.
HABIT (FORM): Compact, rounded, non-flopping habit
FOLIAGE: Deciduous; dark green, leaf spot resistant, turning orange-red in fall
FLOWER COLOR: White aging to pink
FRAGRANCE: None
BLOOM FORM: Pyramidal
BLOOM TIME: Early summer
PLANT ORIGIN: Native to the southeastern United States (including Tennessee). Found naturally in bluffs, moist woods, ravines, and stream banks.
WILDLIFE SUPPORT: Host plant for local butterflies and moths, and food source for pollinators, birds, and small mammals. Supplies shelter and nesting sites.
FERTILIZING: Feed in early spring with organic compost or a balanced, slow-release fertilizer. Avoid high-nitrogen fertilizers which may reduce flowering.
PRUNING: Blooms on old wood. Minimal pruning is required. Prune immediately after flowering if needed, and remove damaged or dead stems in early spring while hydrangea is still dormant.
TOXICITY FLAGS: Mildly toxic if ingested (contains cyanogenic glycosides)
USES: Specimen, hedge, mass planting, informal borders, foundation planting