Psilotum Species, Moa, Skeleton Fork Fern, Whisk Fern

Psilotumnudum

Genus
Psilotum (sy-LOH-tum)
Species
nudum (NEW-doom)
Synonym
Sun Exposure
Light Shade
Partial to Full Shade
Foliage
Evergreen
Height
6-12 in. (15-30 cm)
Spacing
6-9 in. (15-22 cm)
9-12 in. (22-30 cm)
Hardiness
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)
Bloom Color
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Perennials
Ferns
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
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:

Hayward, California

Stockton, California

Big Pine Key, Florida

Brooksville, Florida

Daytona Beach, Florida

Fort Lauderdale, Florida(2 reports)

Homestead, Florida

Jacksonville, Florida

Lecanto, Florida

Miami, Florida

Oldsmar, Florida

Kailua, Hawaii

Kaneohe Station, Hawaii

Maunawili, Hawaii

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Gardener's Notes:

5
positives
1
neutral
0
negative
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L
Hilo, HI (Zone 11) | November 2016 | positive

Here in Hawaii it is called Moa and is native and therefore of historical importance to Hawaiian people. I have seen it growing primari...Read More

B
Hayward, CA | June 2016 | positive

After about a decade after the original plant died...some stems of this fern have risen out of a pot of Sansevieria. I must have reused t...Read More

J
Jacksonville, FL (Zone 8b) | March 2008 | positive

In a sense, this may be the evolutionary grandmother of all vascular plants. With its primitive structure of being all stems, with no le...Read More

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

I purchased one from an online nursery in mid-December 2006. It was planted in a spot with good light and protection from the elements, b...Read More

A
Fort Lauderdale, FL (Zone 10b) | July 2005 | positive

I have had Whisk Fern, Psilotum nudum growing in the "boot jacks" of my Sable palm for several years now. The conditions in the bootjack...Read More

P
Kailua, HI (Zone 11) | July 2004 | positive

this is an interesting plant that I found growing in one of my pots a few years ago. Its still going/growing in the pot (Don't know what...Read More

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