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Growing Glorious Gardenias

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Donna W. Moramarco Add to Journal

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Gardenia close up
Photo Credit: Donna Moramarco
Who can resist the intoxicating fragrance of the gardenia?
Many people are intoxicated by the unmistakable fragrance of gardenias and are awed by the plant’s beautiful blossoms. Gardenia jasminoides is a semitropical beauty that grows best in a warm, humid atmosphere and in an area that offers an abundance of sunlight. In the garden, the plant is hardy in zones 8-10. In all other areas, it’s treated as a houseplant.

No matter where they’re grown, gardenias like acidic, moist, yet well-drained soils. But be careful: The biggest problem gardeners have with gardenias is usually overwatering. Doing so can cause

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Gardenia flower bud
Photo Credit: Donna Moramarco
This healthy gardenia bud is ready to open.
foliage to yellow; so allow the soil to remain evenly moist, but not saturated. (Never allow the plant to become dry.) For potted houseplants, insert your finger at least 2 inches into the soil to check for wetness. If it feels moist to the touch, do NOT water. Ample humidity is also important. You can increase the amount of available humidity to your indoor gardenias (and other plants) by placing them on a pebble tray. Just fill a tray with clean pebbles, stones or gravel and set your houseplants on top of the pebbles. Keep the area filled with water, but do NOT let your houseplants sit in it.

If you live in Zone 7 or colder, your indoor gardenias can enjoy the summer months outside (from June 1 to Sept. 1). Just be sure to locate your plants away from intense, direct sunlight. (Filtered bright light is best.) If you want, sink the pot to the rim in the soil. Be sure to keep up with your watering practices as outlined above!

Tips
  • Snip off a gardenia flower and float it in a shallow bowl of water. Now you can invite fragrance into the other areas of your home.
Facts
  • Different reference sources disagree as to when the best time to propagate gardenias is, but the general consensus appears to be spring through fall.
Faqs
  • Q: I received a gardenia for Mother’s Day. After a few weeks, I noticed it was dropping flower buds. What am I doing wrong?
    A: Gardenias can be finicky! Drafts and fluctuations with temperature and watering can cause buds to drop. Avoid drafts whenever possible. Daytime temperatures should be around 70 degrees F, dropping to 62-65 degrees F at night. Keep soil evenly moist.
 
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