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Hoya Species, Wax Plant, Porcelain Flower

Hoya obovata

Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Hoya (HOY-a) (Info)
Species: obovata (ob-oh-VAY-tuh) (Info)


Tropicals and Tender Perennials

Vines and Climbers

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Sun to Partial Shade

Light Shade



Foliage Color:

Unknown - Tell us


10-12 ft. (3-3.6 m)


6-9 in. (15-22 cm)


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

Suitable for growing in containers



Bloom Color:

Fuchsia (red-purple)

White/Near White

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Late Spring/Early Summer

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


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:

Beaumont, California

Pine Grove, California

Reseda, California

San Francisco, California

Miami, Florida

Quincy, Florida

show all

Gardeners' Notes:


On Sep 20, 2010, riv from Pine Grove, CA wrote:

I had a hoya carnosa which died in an unexpected frost in the SF bay area several years ago. I now have a hoya obovata.

I have read that once the flower stalks fall off, it's hard to grow them back. Sadly, my hoya got mealy bugs and all but two of the flowering stems fell off before I got the problem solved. Is it really true that these stems will never grow back? I love hoyas and the hummingbirds and bees love them, too. I hope I can get some advice on how to get my poor plant to grow some new flowering stems.



On Oct 7, 2008, palmbob from Acton, CA (Zone 8b) wrote:

I am not a super experienced Hoya grower, and all the Hoyas I grow live outdoors in pretty much unprotected pots (though not in full sun) in zone 9b. So far, only a few have survived reliably year after year and this is one of them. It currently, at the time of this writing, has a rating of zone 11 only which is clearly wrong. this plant has not even looked sad when temps dropped into the high 20s. And this is easily the most prolific flowerer of any Hoya I have grown- I always feel lucky when one of my Hoyas bloom, like its some amazing event.. but this thing blooms continuously from late spring into fall.


On Aug 10, 2004, Hoyamoyen from Aarschot,
Belgium (Zone 3a) wrote:

I became a cutting last year (april 2003) that I split in 3 peaces. The top in now about 1,50 meters high & till now (august 2004) give me 4 flowerbuds. Supper.