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Rockbrake

Cryptogramma

Also called Mountain Parsley, Parsley Fern, Parsley Ferns, Rock Brake, Rock Brakes

Rockbrake
Photo: brewbooks from near Seattle, USA, CC BY-SA 2.0

Cryptogramma is a genus of small rock-loving ferns, known as parsley ferns or rockbrakes, found across temperate regions, mostly in the Northern Hemisphere. Growers usually keep the cool, rocky, well-drained conditions these ferns prefer on mountain scree.

Family
Pteridaceae (Maidenhair fern family)
Grows as
Fern
Light
Part shade
Water
Keep the soil lightly moist, never soggy, and let the top dry slightly between waterings.
Soil
Gritty, fast-draining mix such as sand, grit and leaf mould, or a rock garden crevice.
Temperature
10–20 °C; tolerates cold winters well, protect from prolonged heat above 28 °C.
How easy
Moderate

About

Cryptogramma is a genus of ferns known commonly as parsley ferns or rockbrakes. They are one of the three genera in the subfamily Cryptogrammoideae of the family Pteridaceae. Cryptogramma ferns can be found in temperate regions on several continents worldwide. These ferns have two kinds of leaves which often look so different that at first glance they appear to belong to different plants. The fertile leaves have long, narrow, bumpy segments with undersides covered thickly in sporangia. The edges of the segments may curl back to cover the sporangia, forming a false indusium. The sterile leaves have thinner, wider segments which may be rounded and resemble the leaves of parsley. These ferns grow in rocky areas, often in crevices and cracks, particularly on mountain scree.

Where it grows

Species in this genus are distributed widely over the temperate Northern Hemisphere, with one species in the temperate Southern Hemisphere in Chile and Argentina.

Text excerpted from the Wikipedia article Cryptogramma by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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