Gardenia jasminoides 'Kleim's Hardy' is an evergreen shrub native to southern China and Japan, celebrated for its intensely fragrant white flowers that reach 3 inches across. This compact variety grows to 3 feet tall and 3 to 4 feet wide, thriving in zones 7 to 10 with partial shade and moderate water. The thick, glossy dark green leaves provide year-round structure, while the blooms appear from late spring into summer, offering both ornamental beauty and exceptional fragrance that makes it a treasured addition to borders, containers, and cutting gardens.
Partial Shade
Moderate
7-10
36in H x 48in W
—
High
Hover over chart points for details
The extreme fragrance of those white blooms is what gardeners remember most, a scent that fills an entire garden on warm evenings. The glossy evergreen foliage stays handsome year-round, and this Hardy variety tolerates cooler northern climates better than standard types, expanding gardenias into zone 7 gardens where they weren't previously possible. Flowers are excellent for cutting, bringing that intoxicating scent indoors, and they often come in double-flowered forms that intensify the visual drama.
Gardenias serve primarily as ornamental shrubs in the landscape, valued for specimen plantings in partial shade where their glossy foliage and fragrant white flowers command attention. They excel in containers where their moderate size and seasonal blooms brighten patios and entryways, and the cut flowers are highly sought for floral arrangements and corsages. In warmer zones, they work well in foundation plantings and borders where afternoon shade protects them while still allowing enough light for abundant blooms.
No timeline data available yet for this variety.
Plant in fall or spring in warmer climates. Space according to mature width of 36 to 48 inches. Plant into well-drained, acidic, humus-rich soil with extensive organic matter incorporation.
Enter your ZIP code to see a personalized growing calendar for this plant.
“Gardenia jasminoides traveled from its native range in southern China and Japan to become one of the most beloved ornamental shrubs in temperate and subtropical gardens worldwide. The common name 'cape jasmine' reflects historical confusion with other fragrant flowers, though it is neither from the Cape nor a true jasmine. 'Kleim's Hardy' represents deliberate breeding work to extend the gardenia's range northward, allowing gardeners in cooler zones to cultivate what was once restricted to warmer regions.”