About common witchhazel
Witchhazel family (Hamamelidaceae)
Maryland Distribution: throughout the state; woodland understory habitat
Height: variable; 8 to 20 feet tall
Flowers: yellow, with thin, strap-like petals; fragrant; October into November; insect-pollinated
Fall color: golden yellow
Sun: part sun to shade; tolerant of full sun, but vulnerable to sunscorch
Soil: ideally moist, but will tolerate both temporary wetness and somewhat drier sites; slightly acidic (below pH 6.8)
Garden Uses: Common witchhazel extends the garden’s flowering season and provides resources to late-season pollinators. Considered a large shrub or small tree, it pairs well with an underplanting of low-growing perennials like woodland ephemerals or other shade-tolerant wildflowers such as wild ginger, green-and-gold, and wild blue phlox.
Multi-stemmed and deciduous, witchhazel develops a vase shape with maturity: a wide and flat-topped canopy with a narrow base. Emerging young foliage may be reddish-bronze. Established plants are tolerant of occasional heavy pruning to completely rejuvenate growth or periodic thinning to selectively remove the oldest stems.
Leaves shed late in autumn and plants usually begin blooming before leaves have fallen. This can obscure some of the blooms, especially since both foliage and flowers are similar shades of yellow. A few dried leaves may also persist into winter. In cold temperatures, the petals coil to retract, and unfurl again when the weather warms. Flower fragrance is also more detectable during milder temperatures, though still may be faint.
- few cultivars exist for common witchhazel, and most witchhazel cultivars encountered at nurseries will be hybrids of Chinese (Hamamelis mollis) and Japanese (Hamamelis japonica) species, denoted Hamamelis x intermedia
- when plants are successfully grown in a mostly-sunny exposure, branching may be denser and more upright
Wildlife: The seeds disperse many yards away from the plant by explosively popping out of their drying capsules, so support ground-foraging birds such as Ruffed Grouse in Western Maryland and Northern Bobwhite and Wild Turkey state-wide. Seed capsules may also be eaten by small mammals.
The horizontal branching is appealing to several low-nesting bird species, including Wood Thrushes and Flycatchers.
Blooms are visited by select species of moths, gnats, and small bees.
Two native aphid species, the Witch Hazel Cone Gall Aphid and the Spiny Witch Hazel Gall Aphid, can create galls on witchhazel foliage or seed pods, respectively. They do not harm the plant and do not need managing. Both aphids may also use river birch (Betula nigra) as a host, but they similarly cause no serious damage to the tree, and many natural enemies prey on aphids.