Not a grass (Hydrangeas)
Hydrangeas macrophylla · Perennial Shrub; C3 photosynthesis
Grass Family
Hydrangeaceae (Dicotyledon)
Grass Category
Ornamental Shrub (Non-Poaceae)
Variety / Cultivar
Bigleaf Hydrangea (possibly 'Endless Summer' or similar lacecap/mophead variety)
Hardiness Zones
USDA Zones 5-11 depending on variety; deciduous dormancy in winter.
About This Grass
The plant shown is not a grass but a woody shrub with large, opposite, ovate leaves. It features serrated leaf margins and prominent venation. Color ranges from lime green on new growth to deep forest green on mature leaves.
Blade Characteristics
Not applicable (broadleaf). Leaves are broad, serrated, 4-8 inches long, with a pointed apex (tip). Texture is rugose (wrinkled) with visible pinnate veins.
Root System
Non-rhizomatous, fibrous and woody root system; generally lacks the sod-forming characteristics of turfgrass.
Growing Information
Origin Region
Native to Japan
Growth Habit
Deciduous Shrub; clumping, woody stems
Sunlight & Water Needs
Partial shade to full sun with high water requirements; susceptible to wilting in extreme heat without moisture.
Mowing & Maintenance
Do not mow. Requires seasonal pruning of spent flower heads (deadheading) and occasional thinning of old wood.
Special Characteristics
Produces large colorful flowers (blue, pink, or white) influenced by soil pH; high ornamental value; zero traffic tolerance.
Ecological Information
Pollinator attractor when in bloom; introduced ornamental species; non-invasive in most temperate North American regions.