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How to Grow Gardenia as Shrubs or Houseplants

gardenia, gardenias, shrub, houseplant, houseplants


To many of us, Gardenias are an attractive evergreen shrub with dark green, glossy leaves. It produces a profusion of waxy flower blooms most of the growing season. It is also known to many of us as a houseplant. Either way, you'll love having a Gardenia plant or two in your yard, home, or office.

This plant, native to tropical regions, needs higher temperatures and humidity. It is very important to provide the right temperature for Gardenias, especially to promote blooming.

You can grow gardenias just abut anywhere, in the flower garden, on a patio, a balcony, a deck, or indoors.

Propagating Gardenia Shrubs:

Gardenia are propagated from root cuttings. Cut a five to six inch long cutting from new wood. Root it in water

More on rooting plants

How to Grow Gardenias:

Gardenias need proper care and attention.

Temperature: Ideal daytime temperatures are 65-70 ° F, and 55-65 ° F at night.

Humidity: Plants prefer high humidity. Indoors, you can mist plants in dry winter months. But, watch for signs of fungal infections. Provide good air circulation, especially during humid weather.

Ph levels: Gardenias are acid loving plants. The ideal Ph is 5.0 - 6.0

Soil: Plants like rich, well draining soil.

Light / Sunlight: The plants need full, bright sunlight. Shade them from hot, midday summer sun. for indoor houseplants, place them in a sunny window. You may need to provide grow-lights, to supplement available lighting.

Water: Keep the soil moist, net wet. Allow the top of the soil to dry between watering. Indoors: mist frequently when humidity is low.

Fertilizer Regimen:  Gardenias are acid loving plants. They as need iron. Outdoors: fertilize every 3-4 weeks with a acid fertilizer that includes iron. Indoors, use 1/2 solution of liquid fertilizer every 2-3 weeks.

Promoting Blooms: Maintain normal room temperatures until buds form. Then, lower the room temperature at night, or the buds may drop. They also need iron, or buds may drop. Provide total darkness at night

Pruning: Flower buds appear on new stem growth. Prune away dead growth and some old wood. This will promote new wood to form. Deadhead spent blooms.

Plant Problems:

Misting plants can cause fungal diseases.

Overwatering will cause root rot. Watch for brown spots on leaves.

Under-watering can cause leaf drop.

Insect problems include: aphids, mealy bugs, spider mites, thrips, and white flies. 

More information:

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