Gardenia
Gardenias feature glossy green leaves and intensely fragrant white flowers. These elegant green plants add both beauty and wonderful scent to indoor spaces but require specific conditions to thrive.
Gardenia Care Guide
Environment
Gardenias prefer bright, humid environments with good air circulation. They are somewhat challenging to grow indoors but reward careful attention with their intoxicating fragrance.
Light
Bright, indirect light is essential. East or south-facing windows with filtered light work well. Insufficient light prevents blooming, while too much direct sun can scorch leaves.
Temperature
Prefers consistent temperatures between 65-70°F (18-21°C) during the day and around 60-65°F (15-18°C) at night. This slight temperature drop helps trigger blooming.
Watering
Keep soil consistently moist but not soggy. Water when the top inch of soil feels dry. Use rainwater or distilled water if possible, as gardenias are sensitive to chlorine and fluoride in tap water.
Humidity
High humidity (60%+) is essential. Use a humidifier or place on a large pebble tray with water to increase moisture levels.
Fertilizing
Feed with an acidic fertilizer formulated for gardenias or acid-loving plants every 2-3 weeks during spring and summer. Reduce to monthly in fall and winter.
Care Tips
- Use acidic, well-draining soil with a pH between 5.0-6.0. Add peat moss or sulfur to lower pH if needed.
- Avoid moving the plant when in bud or flower as this can cause bud drop.
- Provide good air circulation to prevent fungal issues.
- Yellow leaves often indicate iron chlorosis from alkaline soil - treat with iron sulfate and acidify soil.
Common Problems
- Bud drop often occurs from fluctuating temperatures, low humidity, or improper watering.
- Yellow leaves may indicate iron deficiency (add iron sulfate) or overwatering.
- Failure to bloom usually means insufficient light, improper temperature, or incorrect pH.
- Spider mites, mealybugs, and scale insects are common pests - inspect regularly.
Seasonal Care
Spring
Growth accelerates - a good time for repotting if needed. May begin forming buds.
Summer
Peak blooming season for many varieties. Maintain consistent watering, humidity, and fertilizing.
Fall
Gradually reduce fertilizing as growth slows. Continue consistent watering and humidity.
Winter
Growth slows - maintain bright light and moderate humidity. Some varieties may bloom in winter.