Gardenia Tree Indoors. A handful of acidic compost or ericaceous compost mixed into the soil will help to raise acidity levels slightly. And it isnt practical for many gardeners to plant gardenias outside only to dig them up to bring indoors for the coldest months.
Finding an Indoor Home for Your Gardenia Place your potted gardenia in front of a sunny south-facing window that receives direct sunlight for at least one-half of the day Purdue University. Daytime temperatures that suit humans are just fine for gardenias. The drying nature of most heat can cause a once beautiful gardenia to fall to pieces literally.
You might be able to sneak by a temp as high as 63 but youll be pushing your luck.
Once in a few months to reduce water loss. The ideal conditions for gardenia plants are between 65 and 70 degrees during the day and 62 degrees overnight. There are a few ways to increase indoor humidity. Place the plant on top of a tray of pebbles and water or run a small humidifier nearby.
