Sensitive Fern


Sensitive Fern (Onoclea sensibilis)

Identification

This fern is part of the Wood Fern family (Dryopteridacaea). It earned its name from early settlers who noticed that the fern is very sensitive to frost. The fronds die off quickly with the first frost. The deciduous sterile fronds can be identified by their exceptional width; they can spread over 30cm wide and 60cm in height. The sterile fronds are light green, leathery, and almost triangular, while the fertile fronds are brown with upward pointing leaflets (pinnae) that turn dark brown at maturity. The rhizomes creep along the soil surface and are thick, brown, and spread extensively. In the spring, the fiddleheads emerge with a pale red colouring.

Habitat

The sensitive fern reproduces through spores and extensively vegetatively through the rhizomes, which often form thick stands.

Propagation

Sensitive ferns tolerate slightly acidic conditions and thrive in areas such as marshes, swamps, and thickets. Sensitive ferns are typically not found in fully forested areas. They are great for planting in natural gardens and to provide shade undercover.

Upcoming Events

Oct
3
Sat
9:00 am SWE Woodland Ecology I: Introduc...
SWE Woodland Ecology I: Introduc...
Oct 3 @ 9:00 am – 4:00 pm
Woodland Ecology I: Introduction to Forest Stewardship This course helps landowners gain the knowledge and skills they need to enjoy, improve and manage their own woodlot whether it be creating better access, harvesting wood or
Oct
11
Sun
2:00 pm Autumn in the Forest
Autumn in the Forest
Oct 11 @ 2:00 pm – 3:00 pm
A walk along the trails of Macphail Woods, looking at both plants and animals. This is a great outing for people of all ages.
Nov
7
Sat
9:00 am SWE Basic Chainsaw I: Safety and...
SWE Basic Chainsaw I: Safety and...
Nov 7 @ 9:00 am – 4:00 pm
Basic Chainsaw I: Safety and Felling Spring Session: Saturday, April 11th Fall Session: Saturday,November 7th When trying to manage a forest, being informed about the specific composition of species, soils, water and light is a
Nov
8
Sun
9:00 am SWE Basic Chainsaw II: Maintenan...
SWE Basic Chainsaw II: Maintenan...
Nov 8 @ 9:00 am – 4:00 pm
Basic Chainsaw II: Maintenance and Felling Spring Session: Sunday, April 12th Fall Session: Sunday,November 8th This course will continue to build on skills learned in Basic Chainsaw I. The morning will be devoted to learning

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