Fothergilla (witch alder) is a genus of two to four species of flowering plants in the family Hamamelidaceae, native to woodland and swamps of the southeastern United States.

They are low-growing deciduous shrubs growing to 1–3 m (3–10 ft) tall with downy twigs.

The brush-like flowers are produced before the leaves in spring on terminal spikes; they do not have any petals, but a conspicuous cluster of white stamens 2–3 cm long.

[5] Fothergillas are grown as ornamental plants for their spring flowers and fall foliage color.

The hybrid cultivar Fothergilla × intermedia 'Mount Airy' has gained the Royal Horticultural Society's Award of Garden Merit.