Bloom Calendar
Peak summer color and heat-tolerant plantings for Long Island landscapes.
July brings heat and intense sunlight. Plantings must balance color with drought tolerance.
Water deeply 1–2 times per week. Avoid shallow daily watering that promotes weak roots.
Featured Plants
Month Care Focus
Deep water early morning; raise mowing height to reduce stress.
Suggested Plants for July
Limelight Hydrangea Tree (Hydrangea paniculata)
Flowering shrub / tree form
Bloom: July - October
Sun: Full sun to part shade
Water: Moderate; deep soak weekly during heat
Panicle hydrangea frequently trained as a standard tree form for entry and focal-point planting.
Little Lime Hydrangea
Flowering shrub
Bloom: July - October
Sun: Full sun to part shade
Water: Moderate
Dwarf panicle hydrangea with strong stems and manageable size for tighter suburban lots.
Bobo Hydrangea
Flowering shrub
Bloom: July - October
Sun: Full sun to part shade
Water: Moderate
Compact panicle hydrangea often used in massed foundation plantings and low-maintenance borders.
Phantom Hydrangea Tree (Hydrangea paniculata 'Phantom')
Flowering shrub / tree form
Bloom: July - October
Sun: Full sun to part shade
Water: Moderate; increase during summer heat
Known for very large cone flowers and sturdy stems. Used as a premium statement tree-form specimen.
Oakleaf Hydrangea (Hydrangea quercifolia)
Flowering shrub
Bloom: June - July
Sun: Part shade to morning sun
Water: Moderate; drought tolerant once established
Strong four-season interest with oak-shaped foliage, summer blooms, and red-purple fall color.
Black-eyed Susan
Perennial
Bloom: July - September
Sun: Full sun
Water: Low to moderate
Reliable summer color and pollinator support.
Salvia 'May Night'
Perennial
Bloom: May - July (rebloom with deadheading)
Sun: Full sun
Water: Low to moderate
Spiked violet-blue flowers that pair well with roses and hydrangea masses.
Heuchera (Coral Bells)
Perennial
Bloom: May - July
Sun: Part shade to morning sun
Water: Moderate
Foliage-first perennial that adds year-round leaf color in shade and filtered-sun beds.
Astilbe
Perennial
Bloom: June - July
Sun: Part shade
Water: Moderate to high; likes consistent moisture
Plume flowers for shaded zones where hydrangea and hosta need supporting texture.
Garden Phlox (Phlox paniculata)
Perennial
Bloom: July - September
Sun: Full sun
Water: Moderate
Fragrant midsummer color. Favor mildew-resistant cultivars for humid Long Island summers.
Tonto Crape Myrtle
Shrub/small tree
Bloom: July - September
Sun: Full sun
Water: Moderate; drought tolerant once established
Rich red blooms and good mildew resistance.
Lavender
Perennial
Bloom: June - July
Sun: Full sun
Water: Low; allow soil to dry between watering
Prefers well-drained soil. Avoid heavy fertilization.
Coneflower
Perennial
Bloom: July - September
Sun: Full sun
Water: Low to moderate
Pollinator favorite; deadhead to extend flowering.
Russian Sage
Perennial
Bloom: July - September
Sun: Full sun
Water: Low
Airy texture and drought tolerance; cut back in early spring.
Sweet Pepperbush (Clethra alnifolia)
Shrub
Bloom: July - August
Sun: Part shade
Water: Moderate
Coastal tolerant native shrub for shade and filtered light.
Seasonal Strategy
Align blooms with irrigation and maintenance to keep color peaks synchronized with events and entertaining.
