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PlantFiles: Cycad
Macrozamia johnsonii

 
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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:
Parts of plant are poisonous if ingested

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:
Unknown - Tell us

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

Seed Collecting:
Unknown - Tell us

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By palmbob
Thumbnail #1 of Macrozamia johnsonii by palmbob

By palmbob
Thumbnail #2 of Macrozamia johnsonii by palmbob

By palmbob
Thumbnail #3 of Macrozamia johnsonii by palmbob

By palmbob
Thumbnail #4 of Macrozamia johnsonii by palmbob

By palmbob
Thumbnail #5 of Macrozamia johnsonii by palmbob

By Cretaceous
Thumbnail #6 of Macrozamia johnsonii by Cretaceous

By palmbob
Thumbnail #7 of Macrozamia johnsonii by palmbob

There are a total of 9 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Positive palmbob On Aug 16, 2003, palmbob from Tarzana, CA (Zone 9b) 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.

Regional...

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

Encino, California
Reseda, California
Thousand Oaks, California
Fordoche, Louisiana
Cayce, South Carolina



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