Hare's-Foot Fern

Davallia canariensis is native to Macaronesia and parts of the western Mediterranean region.

• Native range includes the Canary Islands, Madeira, the Azores, and parts of the Iberian Peninsula and northwestern Africa
• The species epithet "canariensis" refers to the Canary Islands, where it was first documented
• In its natural habitat, it grows as an epiphyte on tree trunks and branches, or as a lithophyte on rocky cliff faces and old walls
• The genus Davallia comprises approximately 40 species distributed across tropical and subtropical regions of Asia, the Pacific Islands, and parts of Africa
• Fossil and biogeographic evidence suggests the Davalliaceae family has ancient origins, with diversification likely occurring during the late Cretaceous to early Tertiary period

The Hare's-Foot Fern is a perennial evergreen to semi-evergreen fern, typically reaching 20–60 cm in height with a similar spread.

Rhizome & Stipes:
• Rhizomes are thick, fleshy, and creeping (up to 1–2 cm in diameter), densely covered with soft, silky, golden-brown to reddish-brown scales that give them a distinctly furry appearance
• Rhizomes creep over and along surfaces, anchoring the plant to bark, rock, or moss
• Stipes (leaf stalks) are slender, upright to arching, 5–20 cm long, light green to straw-colored, and smooth

Fronds:
• Fronds are 20–50 cm long, broadly triangular in outline, and 3- to 4-pinnate (highly dissected)
• Ultimate pinnules are small, narrow, and finely serrated, giving the frond a lacy, delicate appearance
• Color is bright to medium green; texture is herbaceous to slightly papery
• Fronds emerge in clusters along the rhizome and arch gracefully outward

Sori:
• Sori are small, cup-shaped, and borne on the underside of pinnule margins near the sinuses between lobes
• Each sorus is protected by a distinctive indusium that is attached at the base and open on one side
• Spores are released when mature and dispersed by wind

In its native range, Davallia canariensis occupies specific ecological niches characterized by mild temperatures and moderate humidity.

• Primarily epiphytic — grows on the trunks and branches of laurel trees and other forest trees in the laurel forest (laurisilva) ecosystem of Macaronesia
• Also found as a lithophyte on shaded rock faces, old stone walls, and cliff crevices
• Prefers partial to full shade; direct sunlight can scorch the delicate fronds
• Thrives in mild, frost-free climates with temperatures generally between 10–25°C
• Requires moderate atmospheric humidity (50–70%) but is more tolerant of dry air than many other fern species
• The laurisilva forests of the Canary Islands and Madeira, where this fern is commonly found, are UNESCO World Heritage sites and represent relict subtropical cloud forests from the Tertiary period

The Hare's-Foot Fern is widely cultivated as an ornamental houseplant and is considered one of the more forgiving ferns for indoor growing, though it still requires attention to its basic needs.

Light:
• Bright indirect light is ideal; tolerates moderate shade
• Avoid direct midday sun, which will scorch the finely divided fronds
• An east- or north-facing window is suitable

Humidity:
• Prefers moderate humidity (50–70%) but tolerates lower levels better than most ferns
• Occasional misting can help in very dry indoor environments

Soil:
• Requires a very well-draining, airy growing medium
• Recommended mix: orchid bark, perlite, and peat or coco coir in roughly equal parts
• Can also be grown mounted on bark slabs or in hanging wire baskets lined with sphagnum moss
• Standard potting soil is generally too dense and retains too much moisture

Watering:
• Water thoroughly when the top layer of the medium begins to dry out
• Allow excess water to drain freely; the rhizomes are susceptible to rot if kept in waterlogged conditions
• Reduce watering slightly in winter when growth slows
• Avoid pouring water directly onto the rhizomes

Temperature:
• Optimal range: 15–24°C
• Can tolerate brief periods down to approximately 5°C but is not frost-hardy
• Protect from cold drafts and heating vents

Propagation:
• Division of rhizomes is the most reliable method — cut a section of rhizome with at least one growing point and frond, and place on moist growing medium
• Spore propagation is possible but slow and requires sterile conditions

Common Problems:
• Brown, crispy frond tips → low humidity or underwatering
• Yellowing fronds → overwatering, poor drainage, or too much direct sun
• Rhizome rot — caused by waterlogged or overly dense growing media
• Mealybugs and scale insects may colonize the rhizomes