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Gardenia care

Gardenia jasminoides

Thirsty’s starting schedule for Gardenia: about every 5 days. Check the soil and adjust it to your home.

Watering

Keep the compost evenly moist but never soggy through spring and summer; water less in winter but don't let it dry out. Room-temperature rainwater is best. [1][2]

Light

Bright light but out of direct sun; in winter, move it to the brightest window. [1][2]

Humidity

Likes high, steady humidity; stand the pot on a tray of damp gravel. Low humidity can make flower buds drop. [1][2][3]

Soil and potting

Acidic (ericaceous), well-drained compost. [1][2][3]

Pets

Toxic to cats and dogs; it can cause mild vomiting or diarrhea and hives. [4]

Sources

1. Royal Horticultural Society: How to grow gardenias
2. Missouri Botanical Garden: Gardenia jasminoides - Plant Finder
3. Clemson Cooperative Extension, Home & Garden Information Center: Gardenia
4. ASPCA: Toxic and Non-toxic Plants: Gardenia

This page summarizes the sources above; follow them for the full picture. Light, pot, soil and season all change how fast a plant dries out, so check the soil before you water. Last reviewed October 9, 2026.