Blue Hibiscus, Lilac Hibiscus, Purple Hibiscus, California Hibiscus 'Swan River'

Alyogyne huegelii

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Alyogyne (al-ly-oh-GY-nee) (Info)
Species: huegelii (hew-GEL-ee-eye) (Info)
Cultivar: Swan River



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


6-8 ft. (1.8-2.4 m)


4-6 ft. (1.2-1.8 m)


USDA Zone 9a: to -6.6 °C (20 °F)

USDA Zone 9b: to -3.8 °C (25 °F)

USDA Zone 10a: to -1.1 °C (30 °F)

USDA Zone 10b: to 1.7 °C (35 °F)

Sun Exposure:

Sun to Partial Shade


Unknown - Tell us

Bloom Color:


Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From softwood cuttings

From semi-hardwood cuttings

From seed; stratify if sowing indoors

Scarify seed before sowing

Seed Collecting:

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


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

Chandler, Arizona

Tempe, Arizona

Citrus Heights, California

Diamond Bar, California

Fallbrook, California

Ojai, California

Olivehurst, California

Perris, California

San Diego, California

Stockton, California

Pompano Beach, Florida

Henderson, Nevada

Springfield, Ohio

Moncks Corner, South Carolina

Montgomery, Texas

show all

Gardeners' Notes:


On Sep 2, 2008, perennialist from Plumas Lake, CA (Zone 8b) wrote:

Alyogyne huegelii ‘Swan River’ BLUE HIBISCUS Medium purple blue, darker than the "regular old trade form," which is actually the variety ‘Santa Cruz,’ but not as dark as ‘Monterey Bay.’ Has better form than either, more compact and denser foliaged, and the flowers are thicker textured, somewhat fuller, and with a conspicuous overlapping “propeller” form. This variety is close to the form found in nature (or rather, formerly found in nature) near Moora, Western Australia. In fact, this form is probably the result of that Moora form crossed with ‘Santa Cruz,’ as is ‘Monterey Bay.’ During the deep drought of 1977-78, the Arboretum at UC Santa Cruz had a severe deer problem, resulting in the continual browsing of the young growth of the Alyogynes growing there. The plants developed into beau... read more


On Jul 3, 2008, xionis from Naples, FL wrote:

I am trying to grow this plant in Naples, Florida. Given our prolonged drought, I thought that I might have a chance. I got my start via eBay from Hawaii, and my plant keeps growing taller every day...however, the flower buds keep dropping off. Also, and I have not noticed this anywhere else in the plant literature, the plant's leaves adjust and follow the sun all day, and at night, tend to go "limp". They look tired and floppy at night, but by morning are again waiting to catch the rays. I have seen all these beautiful photos of the flower...I just hope to see one some day. Bob in Naples, FL


On Jan 27, 2004, RichSwanner from Citrus Heights, CA (Zone 9b) wrote:

All the above ,flowers last longer than 1 day as usually written.deer love to eat it. Like having a Hibiscus with better hardiness.Has great seed pods that are easy to get seeds from.Can be kept smaller in container.


On Mar 8, 2003, Kell from Northern California, CA (Zone 9b) wrote:

This cultivar can get very leggy unless frequently pruned to get to put out more shoots from base to form a denser bush. Do not allow to sit in water, place in well drained area. This one cultivar has dark purple flowers that are are about 4 inches wide. In my zone 9, it will bloom all winter if mild. It also will survive limited frosts.