Hydrangea

Shrubs or trees. Stems erect, ascending, or spreading. Bark exfoliating in grayish, brown, or reddish brown sheets. Branches erect, ascending, or spreading, sometimes arching; twigs with simple or branched trichomes. Leaves deciduous, opposite or 3-whorled; petiole present; blade ovate, elliptic-ovate, elliptic, or suborbiculate, sometimes lobed, herbaceous, margins serrate to serrulate, plane; venation pinnate. Inflorescences terminal, cymose panicles, 100–1000-flowered; peduncle present. Pedicels present. Flowers bisexual or marginal ones often sterile (these with a petaloid, salverform calyx); perianth and androecium epigynous or perigynous; hypanthium campanulate or hemispheric, completely adnate to ovary, weakly or strongly 7–10(–11)-ribbed in fruit; sepals persistent, 5, spreading or reflexed, deltate to shallowly triangular, usually glabrous, rarely abaxially sparsely hairy; petals 5, valvate, spreading or reflexed, white to yellowish white, ovate-lanceolate, elliptic, oblong, spatulate, or narrowly ovate to ovate, base sessile, surfaces glabrous; stamens 10; filaments distinct, terete or flattened proximally, gradually or abruptly tapered from base to apex, apex not 2-lobed; anthers depressed-ovoid or transversely oblong; pistil 2–4-carpellate, ovary completely inferior or nearly so, or 1/2 inferior, 2–4-locular; placentation axile proximally, parietal distally; styles persistent, 2–4, distinct or connate to middle or distally. Capsules hemispheric, suburceolate, or oblong-ovoid, coriaceous, dehiscence interstylar, creating elliptic to circular pore at base of styles. Seeds 10–40 per locule, light brown to dark brown, fusiform or ellipsoid. x = 18.

3-6 hours of sun per day, with protection from intense mid-day sun

Water sparingly, allowing the mix to nearly dry out between watering.

Hydrangea

Hydrangea

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