Limestone Oak Fern, Scented Oak Fern
Gymnocarpium robertianum

Family: Dryopteridaceae
Genus: Gymnocarpium (jim-no-KAR-pee-um) (Info)
Species: robertianum (roh-bert-ee-AH-num) (Info)

Category:

Ferns

Height:

under 6 in. (15 cm)

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

Spacing:

Unknown - Tell us

Hardiness:

USDA Zone 2a: to -45.5 C (-50 F)

USDA Zone 2b: to -42.7 C (-45 F)

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

Sun Exposure:

Light Shade

Partial to Full Shade

Full Shade

Danger:

Unknown - Tell us

Bloom Color:

Unknown - Tell us

Bloom Time:

Unknown - Tell us

Foliage:

Unknown - Tell us

Other details:

This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Oct 7, 2004, tcfromky from Mercer, PA (Zone 5a) wrote:

The name of this plant, when translated, means: Gymnocarpium: in part Greek for "naked" - robertianum: of Robert.

It is of special concern in Wisconsin and perhaps other states as well.