|Botanical Name||Gardenia jasminoides|
|Common Name||Gardenia, cape jasmine|
|Plant Type||Flowering broadleaf evergreen|
|Mature Size||5–6 feet tall, similar spread|
|Sun Exposure||Part shade|
|Soil Type||Rich, well-drained soil; peat-based potting mix for container plants|
|Soil pH||5.0 to 6.5 (acidic)|
|Bloom Time||Seasonal bloomer|
|Flower Color||White, cream|
|Hardiness Zones||8 to 11 (USDA); often grown as a houseplant|
|Native Area||China, Japan, Taiwan|
|Toxicity||Flower is toxic to pets|
Indoors, give gardenias bright light, but avoid direct sunlight, especially during summer. Outdoors, they prefer a part shade location.
Keep soil continuously moist but reduce watering in the winter. Drip irrigation is a good method since it keeps water off the leaves, which can cause fungal leaf spots.
Temperature and Humidity
Gardenias require temperatures above 60 degrees Fahrenheit. Avoid cold drafts if the temperature drops lower. These plants prefer a high humidity level, above 60 percent. In climates with cold, dry winter air, indoor plants may require the use of a humidifier or constant misting to maintain proper humidity.