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Hoya, Variegated Wax Plant, Wax Plant, Porcelain Flower 'Krimson Queen'

Hoya carnosa

Family: Asclepiadaceae (ass-kle-pee-ad-AY-see-ee) (Info)
Genus: Hoya (HOY-a) (Info)
Species: carnosa (kar-NO-suh) (Info)
Cultivar: Krimson Queen
Additional cultivar information:(aka Tricolor, Carnaval)
Hybridized by Cobia
Registered or introduced: 1968
View this plant in a garden


Tropicals and Tender Perennials

Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are fragrant

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers

This plant is suitable for growing indoors


8-10 ft. (2.4-3 m)


3-6 in. (7-15 cm)


USDA Zone 10b: to 1.7 ░C (35 ░F)

USDA Zone 11: above 4.5 ░C (40 ░F)

Sun Exposure:

Light Shade



Bloom Color:

Pale Pink


White/Near White

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall



Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Patent expired

Propagation Methods:

From herbaceous stem cuttings

From woody stem cuttings

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Seed does not store well; sow as soon as possible


This plant has been said to grow in the following regions:



Jáltipan De Morelos,

Jones, Alabama

Montevallo, Alabama

Phoenix, Arizona

Bee Branch, Arkansas

Alameda, California

Clayton, California

Fairfield, California

San Bernardino, California

San Francisco, California

Stamford, Connecticut

Bartow, Florida

Bradenton Beach, Florida

Hollywood, Florida

Miami, Florida

Milton, Florida

Miramar Beach, Florida

Oldsmar, Florida

Quincy, Florida

Saint Augustine, Florida

Sarasota, Florida

Kailua Kona, Hawaii

Gonzales, Louisiana

Hammond, Louisiana

Canton, Mississippi

Saint Joseph, Missouri

Hackettstown, New Jersey

Alden, New York

Whitestone, New York

Zanesville, Ohio

Hulbert, Oklahoma

Florence, South Carolina

Pickens, South Carolina

Travelers Rest, South Carolina

Austin, Texas

Hamilton, Texas

Houston, Texas (2 reports)

Katy, Texas

Lake Jackson, Texas

Plano, Texas (2 reports)

Victoria, Texas

Wimberley, Texas

Kalama, Washington

show all

Gardeners' Notes:


On Mar 4, 2012, Vestia from San Francisco, CA wrote:

This was trademarked and patented by Cobia, but not hybridized by him. It was in existence in Asia long before Cobia. It is a vigorous polyploid, like some of the other carnosa cv.s in circulation. It is the perfect beginner Hoya, and a "super-cleaner" of the indoor air.


On May 5, 2010, JulieDB from Baton Rouge, LA wrote:

I'm looking for a good indoor plant for my office. Sadly the office has no windows. Would a Variegated Wax Plant do OK in a room with no sun? Thanks for tips!


On Mar 15, 2006, Don_Mader from Victoria, TX (Zone 9a) wrote:

Mine grows in a hanging basket in bright shade, outdoors year round. The leaves vary from a dark reddish purple to a creamy white. Some remain green with a white border. The little flowers are amazing.


On Aug 10, 2005, ADKSpirit from Lake Placid, NY (Zone 4a) wrote:

I bought this plant at Lowes or Walmart, and it came with no tag. I was thrilled when I found out it was a hoya. Had one, not this color, years ago and gave it to a friend when I moved. I can't wait to see it flower.


On May 7, 2005, CasieMom from Des Moines, IA (Zone 5a) wrote:

Lovely plant, very low maintenance. Vigorous grower in a hanging basket planter. I moved it outside for the summer and was pleasantly surprised to discover incredible flowers today. It's hanging under a sheltered eave by the back door (facing ESE) with dappled shade from nearby trees. House wrens have made a nest in the plant so I'm watering it carefully now! I'm in Zone 8, Texas Hill Country, blazing heat in the summer. This will be the first summer outside for this plant.


On Oct 20, 2003, PanamonCreel from Celaya,
Mexico (Zone 10a) wrote:

Hoya carnosa 'Tricolor' is a cultivar of Hoya carnosa var. variegata. It can be distinguished by the white or cream border on its leaves. It was patented by Cobia in the 1950s and its patent expired in the 1970s. It was more commonly sold by its trademarked name of "Hoya Krimson Queen."