‘Kleim's Hardy’ gardenia is a woody perennial cultivar in the Rubiaceae (coffee) family. The parent plant is native to southern China and Japan. It can be a houseplant or planted outdoors in zones 7 to 11. When planted outdoors, it prefers morning sun with afternoon shade. It can tolerate full sun but use organic mulch to protect the roots. This gardenia does best in consistently moist, well-drained, acidic soil that is organically rich. Soils that are too alkaline will cause chlorosis (yellowing) of leaves. Propagate by stem cutting. It is distinguished by showy, highly fragrant, white flowers shown off by bright golden stamens and thick, lustrous, dark emerald-green foliage. The compact size of the ‘Kleim’s Hardy’ gardenia makes it ideal for growing in a container, small spaces, and beside a patio or walkway. Insects, Diseases, and Other Plant Problems: Aphids, mealybugs, scale, spider mites, and whiteflies can be a problem. The plant also can suffer from anthracnose, leaf spots, powdery mildew, and sooty mold. The Clemson Cooperative Extension Home and Garden Information Center has a factsheet on common gardenia diseases and other problems. VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers," a plant identification course developed in partnership with Longwood Gardens. More information on Gardenia jasminoides .
Curated pairwise relationships between this plant and others in the library — who feeds
whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.
No curated interactions recorded for this species yet.
Also noted by NC State
Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell
apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.
Fills a similar nicheGardenia jasminoidesGardenia jasminoides 'Crown Jewel'Gardenia jasminoides 'Jubilation'
Whiteflies Found on Flowers and Foliage; Pests of Gardenia; Citrus Whitefly; Aphids Found on Flowers and Foliage; Thrips Found on Flowers and Foliage; Barnacle Scale; Banded Greenhouse Thrips