Photo by Melody

PlantFiles: Albany Bottlebrush, Swamp Bottlebrush
Callistemon speciosus

Family: Myrtaceae (mir-TAY-see-ee) (Info)
Genus: Callistemon (kal-lis-STEE-mon) (Info)
Species: speciosus (spee-see-OH-sus) (Info)

Synonym:Callistemon glaucus


Unknown - Tell us

36-48 in. (90-120 cm)

USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
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)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Scarlet (Dark Red)

Bloom Time:
Late Winter/Early Spring

Grown for foliage

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
From semi-hardwood cuttings
From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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2 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive southeastgarden On Sep 4, 2014, southeastgarden from Jacksonville, FL (Zone 9a) wrote:

This is a nice shrub in zone 9a Florida. Two year old plants flowered for the first time this spring and flowered again in late summer. The flower spike is larger than the common Callistemon citrinus.

Neutral enceebones On Aug 13, 2005, enceebones from great yarmouth
United Kingdom wrote:

I have an Callistemon laevis which I would love to know more about. (ie watering, cuttings etc.) Looks very similar to glaucus.

Positive pokerboy On Jul 14, 2004, pokerboy from Canberra
Australia (Zone 8b) wrote:

A beautiful Australian Native shrub that grows to 1-2m tall - 1.5m wide when established. It's striking red flowers atrractive Native Fauna in Australia. Great in a sunny position to a semi-shaded spot. Quite tolerant of dry conditions and Frost. Flowers in Spring to Autumn (Fall). pokerboy.

Neutral Bug_Girl On Apr 12, 2003, Bug_Girl from San Francisco, CA wrote:

We have a lot these trees in our area. It is a nice tree that will take less water once established. I do recall them having a kind of spike of the branches which makes them more difficult to prune or remove if over-grown. They like full sun and can take either sand or clay conditions.

If used as a street tree don't park your car under one becauses they drop the red flowers all over your car. If it is near your house as a street tree you will have to clean up those red flowers constantly. Most people don't bother, and it becomes an huge mess on the street. However, it is attractive and vigorous.


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

Carlotta, California
Manhattan Beach, California
Norwalk, California
San Francisco, California
Jacksonville, Florida
Honomu, Hawaii
Iredell, Texas

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