Mark A. Miller
HAMAMELIS x intermedia 'Allgold'
Plant Common Name
Allgold Witchhazel, Showy Witchhazel
This entry has yet to be reviewed and approved by L2G editors.
This midwinter blooming hybrid is beloved for its deep buttercup-yellow flowers that have very narrow, twisting petals. The bare branches become dotted with fragrant, colorful, spidery flowers. The spreading, vase-shaped shrub blends and amplifies the great ornamental characteristics of its two parents, Chinese witchhazel (Hamamelis mollis) and Japanese witchhazel (H. japonica). 'Allgold' was named and introduced by Hillier Nurseries (Winchester, England) in the early 1970s.
Witchhazel has dull sage-green leaves that are broadly oval with wavy edges and short tips. The new leaves are yellowish green on top and paler and slightly fuzzy beneath. In autumn, the leaves on 'Allgold' turn buttery yellow. The bark is smooth and gray-brown, but the smaller twigs, from which the flowers arise, are lighter in color. In mid- to late winter, its rich yellow flowers appear. These have four long, narrow and crinkly petals emerging from a red-purple cup. The blossoms are faintly sweet-fragrant and may last for a month.
Plant Allgold witchhazel in full to partial sun and organic-rich, acid or neutral soil with even moisture and good drainage. Simply put: the more sun, the grander the flower show. Its growth is considerably slower in drier soils and hot locations.
This shrub is a wonderful specimen plant for open landscapes, foundations, mixed borders or public landscapes – from parks and campuses to commercial courtyard and entrance gardens. It looks especially lovely when low groundcovers and early spring bulbs blanket the soil under the branches. 'Allgold' is known to develop are rather light, airy canopy.
Most showy witchhazel varieties are grafted onto the rootstocks of hardier and more vigorous American witchhazels (H. vernalis or H. virginiana). Therefore, suckering stems that sprout from below the graft union should be pruned off.