Gardenia, Cape Jasmine, Gandharaj 'Frostproof'

Gardenia jasminoides

Family: Rubiaceae
Genus: Gardenia (gar-DEEN-ya) (Info)
Species: jasminoides (jaz-min-OY-deez) (Info)
Cultivar: Frostproof
Synonym:Gardenia angusta
Synonym:Gardenia augusta
Synonym:Gardenia florida
Synonym:Gardenia grandiflora
Synonym:Gardenia radicans
View this plant in a garden




Water Requirements:

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Sun Exposure:

Light Shade

Partial to Full Shade




Provides Winter Interest

Foliage Color:

Unknown - Tell us


4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)


4-6 ft. (1.2-1.8 m)


USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Where to Grow:

Can be grown as an annual



Bloom Color:

White/Near White

Bloom Characteristics:

Flowers are fragrant

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Blooms repeatedly

Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

Patent Information:

Unknown - Tell us

Propagation Methods:

From herbaceous stem cuttings

From semi-hardwood cuttings

From hardwood heel cuttings

By simple layering

By air layering

Seed Collecting:

Unknown - Tell us


This plant is said to grow outdoors in the following regions:

Moody, Alabama

Citrus Heights, California

Wilmington, Delaware

Lake City, Florida

Ocala, Florida

Danielsville, Georgia

Pembroke, Georgia

Baton Rouge, Louisiana

Salisbury, Maryland

Brooklyn, New York

Staten Island, New York

Cary, North Carolina

Davidson, North Carolina

Hillsborough, North Carolina

, Oppland

Portland, Oregon

Philadelphia, Pennsylvania

Nashville, Tennessee

Belton, Texas

Conroe, Texas

Nome, Texas

Tyler, Texas

Arlington, Virginia

Glen Allen, Virginia

Seattle, Washington

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Gardeners' Notes:


On Mar 15, 2016, nel5397 from Groveland, FL wrote:

I find this plant prone to nematodes and root diseases, giving them a lifespan of 2 to 3 years.


On Dec 27, 2015, Nanthawat from Portland, OR (Zone 8b) wrote:

Bloomed exceptionally well for me this year.
Started blooming around late June, peaked in August and still threw out some bloom in November.
This Gardenia is exposed to about 7-8 hours of direct sun during the summer time and has no burns here in Portland, Oregon.
Easy to root from cutting also.


On Aug 15, 2015, wendymadre from Petersburg, VA wrote:

The Frostproof Gardenia does pretty well in my Zone 7A garden in Petersburg, Virginia. I bought a one-gallon pot of Frostproof about five years ago, and found that there were four little plants in the pot. I planted a couple of them (and gave the others away), and the one that gets more direct sun grew faster and blooms more than the one in the shade. The leaves are narrower than that of most gardenias, and so less lush, but still pretty. The blossoms are full and fragrant. The two gardenias managed through our winters fine until this last winter, 2015, when it got unusually cold, and they both got frost-burned. The larger gardenia in the sunnier location was more exposed and burned worse. The foliage has fully recovered, but there have been almost no blossoms this season. This ne... read more


On Jan 3, 2013, claire25 from Salisbury, MD wrote:

This seems easy to grow--it's my first and only gardenia and I've had it for a couple years. I have it outside, in full sun on the south side of my house in my naturally extremely sandy soil. It gets supplemental watering only during severe droughts--I basically don't mess with it other than raking in one "dose" of Hollytone around it in the spring. It seems to have a fairly short flowering period, but it is a handsome evergreen shrub that smells like heaven when it does bloom. I am planning on taking cuttings this spring to spread more of this plant around my yard.


On Jan 16, 2012, Apalmtree from New York, NY wrote:

Frostproof gardenias have done really well for me in New York City. Mine survived one winter that went down to 5F and still look green today after a low temperature of 12F this winter in early January. I get lots of blooms in late spring and sometimes I get scattered blooms in the summer as well. I dont give it any extra care.
It seems like they start to get light damage below 10F, but bounce back well making them great in zone 7 and up.


On Aug 17, 2011, Southernbell421 from Ocala, FL (Zone 9a) wrote:

I planted the Frostproof in March 2011. The location I chose to put it in was partial to full shade and as of August 2011 it has done very well. I water it lightly every day and it has been happy with that. Living in the deep South I only have to worry about the cold temps that can hit my area (which can hit in the low 20's) so I won't know until Winter time how bad it can be bothered by the cold. I am hoping with it being planted under a canopy of oak trees that it will be okay. It flowered once for me this Summer and the flowers were pretty. I love Gardenia plants and have several of the Mystery Gardenia also and they have done very well and gotten large.


On Jul 22, 2010, plantfreak78 from Rolesville, NC (Zone 7b) wrote:

This plant performed quite well for our nursery in our display gardens for the past three years. It does discolor a little bit during the winter but has still survived even in an unprotected location. Blooming is heaviest in early to mid-June with a light sprinkling of repeat blooms through summer.


On Jun 9, 2010, esteve59 from Annapolis, MD wrote:

Mine is about a 18" bush but has not flowered....maybe next year ??