Photo by Melody

PlantFiles: Hoya, Wax Plant, Porcelain Flower
Hoya obovata

Family: Asclepiadaceae (ass-kle-pee-ad-AY-see-ee) (Info)
Genus: Hoya (HOY-a) (Info)
Species: obovata (ob-oh-VAY-tuh) (Info)

10 members have or want this plant for trade.

Tropicals and Tender Perennials
Vines and Climbers

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)

Sun Exposure:
Sun to Partial Shade
Light Shade


Bloom Color:
Fuchsia (Red-Purple)
White/Near White

Bloom Time:
Mid Spring
Late Spring/Early Summer


Other details:
This plant is suitable for growing indoors
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

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

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By weeding
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Thumbnail #2 of Hoya obovata by GreenGirl58

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There are a total of 23 photos.
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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive riv 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.


Positive palmbob 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.

Positive Hoyamoyen 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.


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

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