Wildflower Archive

wetland fern

Common maidenhair

Adiantum capillus-veneris

Common maidenhair (Adiantum capillus-veneris)
Illustration Adiantum capillus-veneris0

Native to much of the USA

Virginia to Florida, west to Kentucky, southern Missouri, southwestern Colorado and California; south to South America. Also Eurasia.

  • Light Part shade to shade Sun tolerance
  • Moisture Moist to wet Moisture preference
  • Zones 4–11 Cold to heat range
  • Bloom Flowering time
  • Height 6–20 in 15–51 cm
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A wetland fern for part to full shade and consistently moist to wet soil. At 6–20 in, it suits rain gardens, pond edges, and damp low spots. Hardy in USDA zones 4–11.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

Full plant details

Where it grows

Habitat
WetlandThe wild plant community it grows in.
Native range
Much of the USAUnited States (21): AL, AR, AZ, CA, CO, FL, GA, KY, LA, MD, MO, MS, NC, NM, NV, OK, SC, TN, TX, UT, VA. Where it grows wild on its own, by state and province.
Native distribution
Virginia to Florida, west to Kentucky, southern Missouri, southwestern Colorado and California; south to South America. Also Eurasia.The same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Part shade to shadeHow much sun it takes, from full sun to full shade.
Moisture
Moist to wetThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 4–11 · Canadian 4–8The cold-to-heat climate range it survives.
Soil
Moist, well-drained sand, loam or limestone. Can occur as an attached mass growing directly on rock outcroppings where moisture is presentThe soils it grows in naturally.
Soil texture
Light to heavy (sandy to clay)The soil grade it prefers, from sand to clay.
Soil pH
6.0–8.0The acidity to alkalinity it tolerates (7 is neutral).
Soil quality
LowHow rich a soil it needs. Many natives prefer lean soil and flop in rich beds.
Water use
Medium to highHow thirsty it is, a rough guide to how often to water.
Salinity tolerance
NoneHow well it copes with salty soil, near roads or the coast.
Lime (CaCO₃) tolerance
HighHow well it copes with chalky, lime-rich soil.

Growth & form

Height
6–20 in (15–51 cm)Typical mature height.
Spread
~1 ft (0.3 m)How wide one plant gets, a guide to spacing.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).
Growth rate
ModerateA relative ranking versus other plants of the same type (USDA), not an absolute rate.
Shape
ErectIts overall silhouette.
Root depth
2+ in (5+ cm)How far the roots reach, a guide to drought resilience and transplanting.

Flowers, foliage & fruit

Type
FernWhat kind of plant it is.
Flower color
Not ApplicableThe bloom color, or colors.
Toxicity
None knownWhether any part is poisonous to people or pets.

Propagation & seed

Cold stratification
Not requiredWhether seed needs a cold, moist spell before it will germinate.
Propagation
Bare root, seedHow to start new plants.
Seed
~3 million seeds per poundNotes on the seed and how to sow it.
Seed spread rate
SlowHow readily it self-sows. Slow or none means well-behaved, not a spreader.
Seedling vigor
MediumHow strongly young seedlings establish.
Vegetative spread
SlowWhether it creeps outward or stays put in a clump.