Plan the perfect garden with our interactive tool →

How to Grow Gardenias in Texas

...
gardenia image by Igor Zhorov from Fotolia.com

Gardenias can be grown outdoors year round in several regions of Texas. They will grow well in roughly the bottom third of the state covered by USDA zones 8a to 9b, where winter temperatures stay at 15-degrees F or above. They can successfully be grown in containers and overwintered indoors (in a sunny location) in cooler areas of the state, according to Clemson University.

Provide a growing location that has daily lightly filtered to moderate shade conditions. Ensure that there is no competition for root space, as gardenias do not like their roots disturbed in any way and do not tolerate transplanting well. If growing in a container, choose one at least twice the size of the root ball to allow the shrub to grow for several years without being transplanted.

Provide a nutrient-rich planting soil with lots of organic matter that remains easily drained. Amend weak soils with generous amounts of aged manure, compost and peat moss, adding a bit of coarse clean sand in clay soils. Add these to planting soil or simply top-dress the plants with an inch of the compost and manure as mulch, once a year.

  • Gardenias can be grown outdoors year round in several regions of Texas.
  • Amend weak soils with generous amounts of aged manure, compost and peat moss, adding a bit of coarse clean sand in clay soils.

Water your gardenias consistently, year round, to keep the soil evenly moist but not soaking wet. Never allow the soil to become dry beyond the top 1/2 inch of soil crust. Irrigate down at the soil line only and never over the top, leaves or flowers of the shrub, as this can invite disease and can badly spot the glossy foliage. Winter watering will be less than summer, so monitor the plants carefully through the seasons and adjust watering accordingly.

Feed your gardenias in the spring and early summer and with a slow release or organic fertilizer designed for acid-loving plants. In Texas, March and June are ideal. Apply over the surface of the soil according to product label directions. Spread evenly around the root zone and drip line of the shrub tree and water in well until the soil is drenched to a depth of at least 6 inches.

  • Water your gardenias consistently, year round, to keep the soil evenly moist but not soaking wet.
  • Spread evenly around the root zone and drip line of the shrub tree and water in well until the soil is drenched to a depth of at least 6 inches.

Related Articles

How to Make Gardenias Bloom All Year
How to Make Gardenias Bloom All Year
When Are Gardenias in Season?
When Are Gardenias in Season?
Winter Care for Coral Bells
Winter Care for Coral Bells
Gardenia Plant With Leaves Turning Brown
Gardenia Plant With Leaves Turning Brown
How to Care for Hydrangeas in Oklahoma
How to Care for Hydrangeas in Oklahoma
Are Dahlias Annual or Perennials?
Are Dahlias Annual or Perennials?
Are Chinese Palm Plants Poisonous to Cats?
Are Chinese Palm Plants Poisonous to Cats?
How to Grow Azaleas in Florida
How to Grow Azaleas in Florida
The Best Flowering Shrub for South Carolina
The Best Flowering Shrub for South Carolina
Gardenias and Freezing Temperatures
Gardenias and Freezing Temperatures
Can I Grow Avocados in Midwest Illinois?
Can I Grow Avocados in Midwest Illinois?
How to Grow Hydrangeas in Containers
How to Grow Hydrangeas in Containers
How to Feed Gardenias
How to Feed Gardenias
How to Care for a Caladium
How to Care for a Caladium
Garden Guides
×