Yes — yews are among the most toxic landscape plants. Per the Royal Horticultural Society's yew guidance, "almost all parts of the yew plant contain the alkaloid taxine, which is toxic to humans, horses, cattle, and most animals." The red arils (fleshy coverings around the seeds) are the only part not containing high levels of taxine, but the seeds inside are toxic. Ingestion of even small amounts of foliage or seeds can be fatal to horses and cattle. Children should be supervised around yews with accessible berries. Deer appear to have a different metabolic response and browse yews without ill effect.

How do I rejuvenate an overgrown yew?

Per Penn State Extension, yews can be cut back to bare stems in early spring — they will produce new growth from old wood. For less dramatic rejuvenation, reduce size by one-third each year over three years. This approach works better than cutting all species at once because it maintains some screening and reduces the shock to the plant.

Why are my yew needles turning yellow?

Yellow or bronze foliage in yews is most often caused by one of three things: wet, poorly drained soil (root rot), alkaline soil above pH 7.5 limiting iron uptake (chlorosis), or winter desiccation. Per Clemson HGIC, "check soil drainage and pH first before assuming a pest or disease cause." If the soil is wet and the roots are brown and mushy, root rot is the problem and the plant typically cannot be saved.

Can I grow yew in deep shade?

Yes — this is one of yew's key practical advantages. Per Penn State Extension, "yews grow satisfactorily in full shade on the north side of buildings where most other evergreen shrubs fail." In deep shade, growth is slower and foliage may be slightly less dense than in sun, but the plant remains healthy and long-lived. This makes yew one of very few options for shaded formal hedges in northeastern gardens.

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Species guide

Yew Care: Evergreen Hedges and Foundation Plants

Yew (Taxus spp.) is the most shade-tolerant evergreen hedge in zones 4–7 and responds well to shearing — but the entire plant except the red arils is toxic, it is frequently overwatered and killed, and deer eat it severely in high-pressure areas.

By Thomas Joseph Published 2026-06-11 Updated 2026-06-13 Reviewed by Thomas Joseph 8 min read

Yew Taxus baccata shrub with dark green flat needle-like foliage and small red berry-like arils — Yew foliage with its signature red arils. Image: AI-generated reference.

Yew species and cultivars

Two species and one widely used hybrid cover most landscape yew use in North America.

English yew (Taxus baccata)

The ancient European yew. Slow-growing, very long-lived (centuries in the right conditions), the source of most formal topiary and hedge yew in European gardens. Per Missouri Botanical Garden, English yew is hardy in zones 5–7 and "is the standard hedge yew of English formal gardens but can be less reliably cold-hardy than Japanese or Anglojap yew in North American zone 5 winters." Grows to 20–60 feet in natural form.

Japanese yew (Taxus cuspidata)

Hardier than English yew — zones 4–7. Per Penn State Extension, Japanese yew "is more reliably cold-hardy for zone 4–5 gardens in the upper Midwest and Northeast." Its spreading, less formally dense habit makes it more commonly used as a foundation shrub or groundcover than a clipped hedge.

Anglojap yew (Taxus × media)

The hybrid between English and Japanese yew. The most widely planted landscape yew in North America. Per University of Minnesota Extension, "Anglojap yew combines the density and fine texture of English yew with the cold hardiness of Japanese yew" and "is available in a wide range of cultivars covering everything from low groundcovers to tall shrubs and small trees." Key cultivars:

'Densiformis': Dense, mounding form, 3–4 feet tall and wide. The most commonly planted foundation yew.
'Hicksii' (Hicks yew): Narrow, upright column, 12–20 feet. The standard for narrow upright hedges and privacy screens.
'Browni': Dense rounded form, 4–6 feet. Widely used as a foundation plant and clipped ball specimen.
'Tauntonii': Low spreading, 3–4 feet, notably cold-hardy to zone 4. Better than other selections for exposed, cold sites.

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Yew Care: Evergreen Hedges and Foundation Plants

Yew species and cultivars

English yew (Taxus baccata)

Japanese yew (Taxus cuspidata)

Anglojap yew (Taxus × media)