Best known for their fragrant white flowers and glossy green leaves, gardenias are heat-loving evergreen shrubs that are stunning when added to a border or planted in a large container. There are short and tall cultivars, with differing growth forms (upright or spreading), and early, mid or late-season bloom times, so there’s a gardenia to complete almost every landscape look.

Questions About Gardenia

Are gardenias difficult to grow?
Gardenias have very specific requirements, which if met, make them no more difficult to grow than other heat-loving flowering shrubs. Gardenias are hardy in zones 8-11, and thrive in hot, humid weather. They need good drainage and acid soil containing lots of organic matter, and bright sunlight to set flower buds, however they will not withstand baking afternoon sun. Site them on the north or east sides of the house.
Are grafted gardenias better?
Grafted gardenias are grown on the Gardenia thunbergia root stock which is resistant to root knot nematodes As this the rootstock is also generally more vigorous, grafted plants are more long-lived, more disease-resistant, and the plants have better color than non-grafted plants. If you live in an area where gardenias are typically more difficult to grow, grafted gardenias, which tolerates poor soils and more readily takes up soil nutrients, are the better the option.
Why won’t my gardenia bloom?
Gardenias occasionally fail to bloom if they don’t receive enough sunlight to trigger bloom and bud development. During hot, dry summers, if not watered deeply at least once per week, gardenias may experience bud drop. In cooler areas, flower buds can be killed by freezing temperatures. (Lower than 15 degrees.) Pruning aggressively late in the summer can prevent the plant from blooming. Finally, damage from insect pests such as aphids or thrips can cause the buds to drop
What are "hardy" gardenias?
A cold hardy gardenia is a variety bred to withstand extremes of cold in comparison with most varieties of gardenia. This is an important distinction. By the standards of much of the continental United States, there is no such thing as a gardenia that is seriously hardy in cold weather. Only these few varieties can withstand more cold than a tender variety including Chuck Hayes Gardenia, Kleim’s Hardy Gardenia, and Frostproof Gardenia. Those recommended for Zone 7 can survive limited exposure to temperatures as low as 0 degrees F.
Can I grow gardenias as houseplants?
Though often sold as houseplants, gardenias are generally poor candidates for growing indoors as they attract mites, mealybugs, and whiteflies and are prone to buds dropping off. Enjoy them for a few weeks when in bloom, but then place the outdoors either planted or in a large container.

Our Favorite Gardenias

First Love Gardenia (Grafted)
Gardenia jasminoides 'Aimee' (Grafted onto G. thunbergia)
Item #3757
Mystery Gardenia (Grafted)
Gardenia jasminoides 'Mystery' (Grafted onto G. thunbergia)
Item #3759
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Pinwheel® Gardenia
Gardenia augusta 'PIIGA-I' Plant Patent #22,510
Item #9791
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Summer Snow® Gardenia
Gardenia jasminoides 'BAB 1183' Plant Patent #22,797
Item #8075

Gardenia that will grow in my garden