When Does a Beech Hedge Turn Green?

What happens when a Beech hedge comes into leaf?

Beech is deciduous, even though a regularly clipped hedge often retains much of its dry copper-brown foliage through winter. In spring, the long, pointed buds begin to swell before opening into soft new leaves. As the buds expand, they push many of the previous year’s brown leaves away from the branches.

The new foliage of Green Beech initially appears fresh, pale or apple green. It gradually becomes a deeper green as the leaves mature through late spring and summer.

Why does one Beech hedge turn green before another?

There is no single date on which every Beech hedge will come into leaf. Bud development is influenced by spring temperatures, the amount of shelter around the hedge and local growing conditions.

Temperature and location

A hedge in a warm, sheltered garden may begin opening its buds during April. Beech growing in a colder northern garden, an exposed field, a frost pocket or a position affected by cold winds may remain dormant for several weeks longer.

Small differences can also occur along one hedge. A section beside a warm wall or in direct sunlight may leaf out before plants growing in shade or an exposed corner. A difference of several days, or occasionally a couple of weeks, does not necessarily indicate a problem.

Beech is naturally one of the later native trees to open its leaves. UK observations commonly place its main period of budburst during April and into early May.

Newly planted Beech hedging

Bare-root Beech planted during winter may open slightly later than an established hedge nearby. Newly planted plants are developing roots as well as preparing new foliage, and individual plants can begin growing at slightly different times.

Keep the planting strip free from grass and weeds, and check that the soil remains evenly moist without becoming saturated. Avoid applying excessive fertiliser simply to force the plants into leaf. Correct watering, drainage and root establishment are more important than heavy feeding during the first growing season.

How can you tell whether a bare Beech hedge is still dormant?

A Beech hedge that is still brown or bare in April is not automatically dead. Examine several plants rather than relying on the appearance of one branch.

Healthy dormant Beech usually has:

• Long, pointed buds that feel firm rather than hollow or brittle.
• Stems that bend slightly instead of snapping immediately.
• Green or pale living tissue beneath a very small scratch in the outer bark.
• Buds that gradually become larger or begin separating at the tip.

Carry out a scratch test only on a small, inconspicuous section of stem. Testing several branches at different heights gives a more reliable indication than checking one twig.

Brittle stems, shrivelled buds and dry brown tissue extending to the base of the plant are more concerning. On a newly planted hedge, also check for dry roots, waterlogged soil, loose plants or wind movement around the root system.

When should you investigate a Beech hedge that has not turned green?

In a cold or exposed garden, it can be reasonable for Beech to remain dormant into the middle or latter part of May. Concern becomes more justified when the rest of the hedge is fully green but one plant or section shows no swelling buds or living tissue.

If there is still no movement by late May or early June:

1. Check several buds and stems for signs of living tissue.
2. Examine the soil for severe dryness or standing water.
3. Make sure newly planted roots have not become loose through wind-rock.
4. Water deeply if the root area is dry, rather than repeatedly wetting only the surface.
5. Avoid removing a plant until the main stems have been checked properly.

Beech can sometimes produce a later flush from secondary buds, particularly after cold weather or damage to the first spring growth.

What if the new Beech leaves turn brown?

Fresh Beech foliage is vulnerable to a late spring frost. Newly opened leaves may rapidly turn brown or black after a cold night, even though the stems and roots remain alive.

Do not immediately cut every affected shoot away. Allow time for secondary buds to develop, as a healthy hedge can often produce replacement growth within the following weeks. Keep the root area appropriately watered during dry weather and avoid encouraging soft growth with a strong nitrogen feed.

Does Purple or Copper Beech turn green in spring?

Purple or Copper Beech comes into leaf at approximately the same time as Green Beech. Its new foliage may initially contain greenish, bronze or red tones before developing its deeper burgundy and purple colouring.

The strongest purple colour normally develops in good sunlight. Plants in heavier shade can appear noticeably greener, but this does not necessarily indicate poor health or a lack of fertiliser.

Will the brown winter leaves always remain until spring?

A clipped Beech hedge commonly retains dry leaves through winter, but the amount varies. Older, infrequently trimmed, exposed or stressed hedges may lose more of their foliage before the new spring growth begins.

An August trim encourages young growth that is more likely to retain its leaves, but complete winter coverage cannot be guaranteed. A hedge can still be healthy even if most of its brown leaves fall before the new green foliage appears.

For complete planting, watering, feeding and pruning advice, see the Beech Hedge Care Guide.