Kleim’s Hardy Gardenia

Botanical Name: Gardenia jasminoides ‘Kleim’s Hardy’

Common Name: Kleim’s Hardy Gardenia

Mature Height and Width:
2–3' tall × 2–3' wide

Growth Habit:
Compact, low-growing evergreen shrub with tight, rounded to slightly flattened mounded form. Dense branching with short internodes. Slower growing than many gardenia cultivars.

Foliage Description:
Small, narrow, glossy dark green leaves with smooth margins. Leaves are finer and more tightly spaced than larger gardenia types, creating a dense, refined texture. Evergreen in Zones 7–9 (protected Zone 6 possible with winter burn risk).

Flower Description:
Single white star-shaped flowers 2–3" wide with prominent golden stamens. Blooms are fragrant and appear singly across canopy rather than in heavy clusters. Flower form is flat to slightly cupped, not double.

Bloom Time:
Late spring to early summer; may lightly rebloom.

Fall Color:
Evergreen; no fall color.

Light Requirements:
Full sun to partial shade. Best performance with morning sun and some afternoon protection in hotter sites.

Hardiness Zone:
USDA Zones 7–10 (marginal but possible in protected Zone 6).

Notable Landscape Uses:
Low foundation planting; border edging; small hedge; container planting; courtyard accent; foreground shrub in mixed beds.

Deer Resistance:
Moderate to High
Established plants are generally avoided; occasional browsing may occur on tender new growth under pressure.