Hoya Species, Australian Waxflower, Wax Plant, Porcelain Flower

Hoyaaustralis

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Hoya (HOY-a)
Species
australis (aw-STRAL-iss)
Synonym
Hoya bicarinata
Hoya pilosa
Hoya pubescens
Sun Exposure
Sun to Partial Shade
Foliage
Evergreen
Textured
Height
15-20 ft. (4.7-6 m)
Spacing
3-6 in. (7-15 cm)
Hardiness
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Red
White/Near White
Cream/Tan
Bloom Time
Late Summer/Early Fall
Other Details
Category
Tropicals and Tender Perennials
Vines and Climbers
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Suitable for growing in containers
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From herbaceous stem cuttings
From woody stem cuttings
From softwood cuttings
Seed Collecting
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Seed does not store well; sow as soon as possible
Regional

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

Miami, Florida

Palm Bay, Florida

KAILUA KONA, Hawaii

Kurtistown, Hawaii

Dennis Port, Massachusetts

Featured Videos

Gardener's Notes:

3
positives
3
neutrals
0
negative
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K
West Tisbury, MA | May 2016 | positive

I have a question: does any one know the species with deep violet marbling in the foliage? it shows mostly on the reverse, actually the v...Read More

S
| April 2016 | neutral

I saw one of these Hoyas in flower at the Royal Botanic Garden, Sydney today (mid autumn), photo attached. It was growing under branches ...Read More

P
(Zone 1) | November 2009 | positive

I have two different Hoya australis plants and could never remember which was which, until I learned from a very knowledgeable person her...Read More

P
Acton, CA (Zone 8b) | September 2007 | neutral

This is one of the more arid tolerant species, needing very little humidity in its care (unlike the majority of species which prefer some...Read More

H
(Zone 3a) | December 2005 | neutral

There are more than one subspecies of this Hoya.

I
(Zone 6a) | December 2002 | positive

Plant originates from the east of Australia (Queensland, New South Wales), where it lives in rainforests. It is the most common Hoya...Read More

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