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Cycad
Macrozamia johnsonii

Family: Zamiaceae
Genus: Macrozamia (mak-roh-ZAM-ee-uh) (Info)
Species: johnsonii (jon-so-nee-eye) (Info)

Category:

Shrubs

Trees

Cycads

Height:

4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)

Spacing:

10-12 ft. (3-3.6 m)

12-15 ft. (3.6-4.7 m)

Hardiness:

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

Danger:

Seed is poisonous if ingested

All parts of plant are poisonous if ingested

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

Unknown - Tell us

Bloom Time:

N/A

Foliage:

Grown for foliage

Evergreen

Smooth-Textured

Shiny/Glossy-Textured

Other details:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

This plant is fire-retardant

This plant is resistant to deer

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting:

Unknown - Tell us

Regional

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

Brentwood, California

Encino, California

Reseda, California

Thousand Oaks, California

Visalia, California

Fordoche, Louisiana

Cayce, South Carolina

show all

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Sep 15, 2011, BayAreaTropics from Hayward, CA wrote:

A pair of these planted as entrance plants at the Oakland Zoo have reached huge sizes in less then a decade. So,cool summers and basic care are good enough for this tough-but still expensive,cycad. Like a nice small palm with a thick crown of fronds.

Positive

On Aug 16, 2003, palmbob from Acton, CA (Zone 8b) wrote:

This is one of the easiest cycads to grow in Southern California. It eventually forms a massive trunk, not unlike a Phoenix canariensis palm(though not that big). It has flat leaves, unlike its similar cousin, M moorei. Also from Australia.