Wax Hearts, Sweetheart Hoya, Valentine Hoya, Wax Plant, Porcelain Flower

Hoya kerrii

Family: Asclepiadaceae (ass-kle-pee-ad-AY-see-ee) (Info)
Genus: Hoya (HOY-a) (Info)
Species: kerrii (KER-ee-eye) (Info)
View this plant in a garden


Tropicals and Tender Perennials

Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers


8-10 ft. (2.4-3 m)


3-6 in. (7-15 cm)


USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Sun to Partial Shade

Light Shade



Bloom Color:

Maroon (Purple-Brown)

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:


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:

Anniston, Alabama

Phoenix, Arizona (2 reports)

Brea, California

Carlsbad, California

San Francisco, California

Bartow, Florida

Indialantic, Florida

Miami, Florida (2 reports)

Palm Bay, Florida

Port Saint Lucie, Florida

Saint Petersburg, Florida

Sarasota, Florida

Venice, Florida

Winter Haven, Florida

Augusta, Georgia

Saint Paul, Minnesota

Canton, Mississippi

Chehalis, Washington

Cabin Creek, West Virginia

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Gardeners' Notes:


On Feb 10, 2015, rldenni001 from Saint Paul, MN wrote:

This is a great plant, and grows like all of the other hoyas that I have. I bought it as a leaf and after a LOOOOOOONG time (probably a year), it finally started to grow new shoots from the base. For those that say the plants won't grow from leaf cuttings, it simply is not true. The leaf itself will not grow, however new shoots will come from the base of the plant. My advice is do not re-pot until you see new growth, and even then, make sure that it is in fact time to re-pot. My general rule of thumb is when you start to see more roots than soil. Don't go up into a huge pot right away, you should only pot up an inch or so at a time. For instance, if the pot is a 4 inch, the next pot should be no larger than a 6". It will likely take a couple of years before it needs to be repotted a... read more


On Aug 18, 2013, cdonnell from Santa Clara, CA wrote:

I bought what must be a leaf. It has a "living message' carved on it. I have had it for several months and it hasn't done anything. I was led to think it would grow but from what I see here, it isn't going to. Right? The leaf is flat too, not puffed out in any way, but not shriveled and dead or anything. Do I have a "mummy" leaf or something?
Any ideas?


On Sep 8, 2010, smurfwv from Cabin Creek, WV (Zone 6a) wrote:

I love this hoya, never seen a heart leaf one before. I got a cutting of this in December, and 6 months later got a new shoot on it, 2 feet long, and buds as well. I sure hope it grows more.

On a second note, this hoya is often sold with a single leaf in a pot. Those will never produce a plant because its just a leaf, and not a rooted stem with a axis bud.


On Jan 18, 2010, biskutmkr1947 from Hubert, NC wrote:

I purchased a short cutting of this plant from a vendor for $1.50 when I lived in Florida. I kept it outside except for winter when I brought it into the house. The plant didn't grow for about a year and I was going to throw it away when I noticed that it was starting to grow. It grew and grew. When it was about six feet long, it got two flowers that were absolutely beautiful. When I moved to Montana, I took the plant with me. I kept the plant in the house in a bright window but it died despite everything I tried to keep it alive. I was heartbroken. I have moved to North Carolina and hope to obtain another plant. I will baby that one so that I have it for years to come.


On Sep 26, 2003, weeding from Peachtree City, GA (Zone 8a) wrote:

Hoyas are great plants to collect. The blooms sizes and colors are vast. Above says propagation by leaf cuttings. Leaf cuttings will root, but will not grow any larger. You must have some stem attached to the leaf cuttings to get a growing plant.