Bloom Calendar
Early summer color, long-blooming perennials, and outdoor entertaining season on Long Island.
June is the start of sustained summer color. Perennials and shrubs dominate with long bloom windows.
Water early morning to reduce evaporation. Monitor hydrangeas during heat spikes.
Featured Plants
Month Care Focus
Monitor irrigation coverage and prune spring-blooming shrubs.
Suggested Plants for June
Bigleaf Hydrangea (Hydrangea macrophylla)
Flowering shrub
Bloom: June - September
Sun: Morning sun, afternoon shade
Water: Consistent moisture; deep weekly watering
Classic Long Island mophead/lacecap hydrangea. Blooms on old wood unless reblooming cultivar.
Blue Summer Hydrangea (Endless Summer line)
Flowering shrub
Bloom: June - October
Sun: Morning sun, filtered afternoon light
Water: Even moisture; never allow prolonged dry-out
Popular reblooming hydrangea often stocked on Long Island. Flower color skews bluer in acidic soil.
Bloomstruck Hydrangea
Flowering shrub
Bloom: June - October
Sun: Morning sun, afternoon shade
Water: Moderate to high during bloom season
Reblooming bigleaf type with stronger stems and improved cold resilience for Northeast gardens.
Summer Crush Hydrangea
Flowering shrub
Bloom: June - September
Sun: Part sun
Water: Consistent moisture with mulch
Compact Endless Summer cultivar, widely used for front foundations and smaller estate beds.
Annabelle Hydrangea (Hydrangea arborescens)
Flowering shrub
Bloom: June - August
Sun: Full sun to part shade
Water: Moderate; prefers evenly moist soil
Smooth hydrangea that blooms on new wood. Reliable performer in Long Island residential landscapes.
Quick Fire Hydrangea
Flowering shrub
Bloom: June - September
Sun: Full sun to part shade
Water: Moderate
Early-flowering panicle hydrangea for extended color sequence before other panicles peak.
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.
Mountain Laurel
Shrub
Bloom: May - June
Sun: Part shade
Water: Moderate; well-drained acidic soil
Native shrub with showy blooms; avoid heavy clay.
Rhododendron
Shrub
Bloom: May - June
Sun: Morning sun, afternoon shade
Water: Even moisture; acidic soil
Great for shaded foundations and woodland edges.
Hosta
Perennial
Bloom: June - August
Sun: Shade to part shade
Water: Moderate; consistent moisture
Excellent texture plant; protect from deer if needed.
Daylily
Perennial
Bloom: June - August
Sun: Full sun to part shade
Water: Moderate
Low-maintenance and repeat blooms.
Coneflower (Echinacea purpurea)
Perennial
Bloom: June - September
Sun: Full sun
Water: Low to moderate
Pollinator-friendly perennial with reliable summer color and strong drought tolerance.
Coreopsis 'Moonbeam'
Perennial
Bloom: June - September
Sun: Full sun
Water: Low to moderate
Long flowering perennial used for soft yellow seasonal rhythm in mixed 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.
Nepal Potentilla (Shrubby Cinquefoil)
Shrub
Bloom: June - September
Sun: Full sun
Water: Low to moderate
Tough shrub for sunny borders and low maintenance beds.
Lavender
Perennial
Bloom: June - July
Sun: Full sun
Water: Low; allow soil to dry between watering
Prefers well-drained soil. Avoid heavy fertilization.
Peony
Perennial
Bloom: May - June
Sun: Full sun
Water: Moderate; keep soil evenly moist
Support blooms and deadhead after flowering.
Buttonbush (Cephalanthus occidentalis)
Shrub
Bloom: June - August
Sun: Full sun to part shade
Water: Moderate to high
Handles wet conditions and moderate salt exposure.
Columbine (Aquilegia spp.)
Perennial
Bloom: April - June
Sun: Part shade
Water: Moderate
Shade-tolerant perennial with moderate salt tolerance.
Pagoda Dogwood (Cornus alternifolia)
Tree/shrub
Bloom: May - June
Sun: Part shade
Water: Moderate
Understory species suited for filtered woodland light.
Doll's Eyes (Actaea pachypoda)
Perennial
Bloom: May - June
Sun: Shade to part shade
Water: Moderate
Woodland perennial adapted to deep shade gardens.
Canada Anemone (Anemone canadensis)
Perennial
Bloom: May - June
Sun: Part shade
Water: Moderate
Native perennial with shade tolerance and spreading habit.
Wild Columbine (Aquilegia canadensis)
Perennial
Bloom: April - June
Sun: Part shade
Water: Moderate
Northeast native for bright shade and woodland edges.
False Solomon's Seal (Maianthemum racemosum)
Perennial
Bloom: May - June
Sun: Shade to part shade
Water: Moderate
Understory perennial tolerant of deep shade.
Seasonal Strategy
Align blooms with irrigation and maintenance to keep color peaks synchronized with events and entertaining.
