About
A more substantial shrub compared to other Gardenia varieties. Large, scented, creamy-white flowers and dense glossy green foliage.
About the genus
Gardenia are bushy evergreen shrubs or trees, with attractive glossy leaves and large, fragrant white funnel- or bowl-shaped flowers with from 5 to 11 lobes
Growing conditions
SunlightFull sun, Partial shade
Soil typeLoam, Sand
Soil pHAcid, Neutral
Soil moistureMoist but well-drained
AspectEast-facing, North-facing, South-facing, West-facing
ExposureSheltered
UK hardinessH1C
Plant details
Plant typeShrubs
HabitBushy
FoliageEvergreen
Height1.5-2.5 metres
Spread1.5-2.5 metres
Time to full height5-10 years
Suggested usesCity and courtyard gardens, Houseplants, Patio and container plants, Sub-tropical
Native toThailand
FragranceFlower
ToxicityGardenias can be toxic to certain animals, such as cats, dogs, and horses. They contain compounds which can cause mild symptoms like vomiting, diarrhea, and hives if ingested. Gardenias are generally considered safe for humans and are not known to pose significant health risks. If you have pets, keep gardenias out of their reach to avoid any accidental ingestion
Care notes
CultivationGardenias need bright light, but not strong sun, high humidity and consistently moist, ericaceous compost. They prefer 21–24°C (70–75°F), with slightly cooler night-time and winter temperatures, but always above 16°C (60°F). They can also be grown outside in the warmest summer months in a sheltered spot in partial shade. Gardenias can’t tolerate waterlogged or very dry compost. They will not like a hot, dry atmosphere, strong summer sun or deep shade. Plants are tender, so must be kept indoors over winter. They dislike large temperature fluctuations, which can cause the flower buds to drop
PruningKeep gardenias in good shape by lightly pruning in February or March – see our guide to light pruning
PropagationGardenias are easy to grow from cuttings. It’s a good idea to take cuttings annually, as flowering tends to reduce after a few years, so plants need replacing. Take: softwood cuttings in late winter or early spring, and semi-ripe cuttings in summer – heel cuttings are often especially successful. Once rooted, move plants into individual pots of ericaceous compost. Re-pot annually as they grow, to ensure the roots don’t become congested
Pest resistanceCheck plants regularly for sap-feeding insects, including red spider mites, mealybugs, scale insects and aphids
Disease resistanceMay be susceptible to powdery mildews in dry conditions, root rot and fungal or bacterial leaf spots