Sphaeropteris Species, Soft New Guinea Tree Fern

Sphaeropteristomentosissima

Genus
Sphaeropteris (sfay-ROP-teris)
Species
tomentosissima (to-men-to-SIS-see-ma)
Synonym
Cyathea tomentosissima
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Grown for foliage
Evergreen
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
8-10 ft. (2.4-3 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)
Danger
N/A
Bloom Color
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Tropicals and Tender Perennials
Ferns
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
From spores
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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

Houston, Texas

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Gardener's Notes:

1
positive
3
neutrals
0
negative
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H
Houston, TX | January 2022 | positive

I've been growing this plant in a plastic pot. potted up from 1 gallon to 5 gallon at first, then potted up to 15 gallon. Houston, bein...Read More

C
El Sobrante, CA (Zone 9b) | April 2007 | neutral

Cyathea tomentosissima is native to New Guinea.

Cyathea are listed on CITES Appendix II.

T
T
Austin, TX | July 2005 | neutral

This fern was new to me as well. I'm trying it out in large pot with mixed sun and shade throughout the day. Trying out new plants in l...Read More

P
Acton, CA (Zone 8b) | August 2003 | neutral

This is a beautiful new (to me) Cyathea I just discovered this week. It is somewhat bizarre for a Cyathea. A fern grower in Huntington ...Read More

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