Photinia Red Robin: hedge, pruning and winter in Czech conditions

An evergreen shrub with red new growth that is changing hedges. How to plant photinia, when and how often to prune it, how to get it through winter and what to do about leaf spots.

In brief: Photinia (Photinia × fraseri, most often the variety ‘Red Robin’) is an evergreen shrub with glossy leaves that sprout deep red in spring. It is grown mainly as a hedge. It wants sun, free-draining soil and shelter from wind, and is pruned two to three times a year, the last time by mid August.

Frost hardiness	RHS H5, roughly to −10 to −15 °C; young shoots are damaged by frost
Growth	up to 30 cm a year
Hedge height	usually 1.5–2.5 m, an unpruned shrub 4 m and more
Spacing in a hedge	2–3 plants per metre in a single row
Pruning	2–3× per season, the last time by mid August
Position	sun to partial shade, sheltered from drying wind

You can recognise photinia in spring from a hundred metres. While the surrounding hedges are still green-brown, its new shoots glow red as if lit up. That is why in recent years it has been replacing thuja and yew in gardens. It is not undemanding everywhere, however: in open and frosty locations it suffers, and winter sun can scorch its leaves.

In this article you will find how to plant photinia in a hedge, when and how often to prune it, how to help it through a Czech winter and what leaf spots mean.

Which plant hides under the name photinia

Photinia is the name of the genus Photinia in the rose family. In garden centres the hybrid Photinia × fraseri is sold in the vast majority of cases, mainly varieties with red new growth. Beware of confusion: the same name is also borne by some night moths of the noctuid family, so in an image search moths sometimes appear.

Variety	Habit	What distinguishes it
‘Red Robin’	tall, unpruned 4–8 m	the most widespread, bright red new growth, 1.5–3 m for a hedge
‘Little Red Robin’	compact, around 1–1.5 m	low hedges and borders, containers
‘Pink Marble’	medium	leaves with a cream to pink margin, slower and more tender

An unpruned photinia flowers in spring in creamy white clusters, but in a hedge, because of regular pruning, you usually do not see them.

Position: sun yes, frosty wind no

It colours best in sun. In partial shade it also grows, just the red colour is weaker. Much more important is protection from cold, drying wind. Evergreen leaves lose water in winter, and when the soil is frozen the plant has nowhere to replenish it from. On an open, windswept plot the leaves therefore turn brown and drop.

The soil should be fertile, humus-rich and free-draining, slightly moist in summer but never waterlogged. Photinia also tolerates limy soil. On heavy clay soil, where water stands after rain, add gravel and compost or plant on a slightly raised strip.

Planting a hedge in six steps

Plant container-grown plants from the beginning of autumn, when the soil is still warm. Spring planting is fine too, you just have to water more.
Mark out the line of the hedge with a string and dig a strip 60–90 cm wide to the depth of a spade.
Work compost or other organic material into the top 25 cm or mix it with the excavated soil. Do not put it at the bottom of the trench; as it decomposes the plants would sink.
Space the plants 35–50 cm apart, that is 2–3 per metre. The low variety ‘Little Red Robin’ tolerates a denser spacing. For a hedge wider than a metre you can plant in two staggered rows.
Plant to the same depth as they grew in the container, firm the soil with your foot and water generously.
Mulch so that the soil does not dry out, and for the first two years water regularly in dry weather. Mulch fabric with bark on top also suppresses weeds.

General guidance on choosing which hedge for which purpose can be found in the article how to look after a hedge.

Pruning: when and how often

Photinia tolerates pruning well, and every trim forces it to send out new red shoots. A hedge is therefore pruned two to three times per season:

End of May to June – the first shaping cut after the spring growth.
July – a second cut, if you want the hedge dense and red again.
By mid August at the latest – the last trim. Do not prune after it. New shoots would not ripen before winter and would be killed by frost.

Prune a young hedge from the very first year, even if it is not yet tall. Shortening shoots by a third promotes branching from the ground. Shape the hedge so that it is slightly narrower at the top than at the bottom; the lower branches then get enough light and do not thin out. An old, bare shrub can be rejuvenated in spring with a hard cut; it sprouts from old wood. Treat large cuts as described in the article protecting pruning wounds after cutting.

Winter in Czech conditions

According to the RHS, ‘Red Robin’ has a hardiness rating of H5, that is roughly to −10 to −15 °C. In warmer areas and in towns it overwinters without trouble; in higher and frost-prone locations it is risky. The most harmful is the combination of frost, hard frost without snow and sun. The leaves on the south side then turn brown as if scorched.

In autumn before the ground freezes, water the hedge generously.
Cover the roots with a layer of mulch, and for young plants with evergreen boughs as well.
For the first two winters shade young plants on the south and west side with shade netting or hessian.
In August stop feeding with nitrogen so that the shoots ripen before winter.

Cut frost-damaged tips back in spring to healthy wood; photinia usually sprouts again quickly. Further advice on preparing the garden in autumn is summarised in the article winterising the garden.

Leaf spots and other troubles

Leaf spot shows as purplish-brown dots and blotches that may merge, and the leaves then drop. According to the RHS it is a sign that the plant is stressed, most often after a cold and wet winter. Rake up affected leaves, improve drainage and air circulation and avoid watering over the leaves. When the plant recovers, the new leaves are usually healthy.

In addition, powdery mildew, vine weevil, which chews leaf margins into semicircular notches, and rarely fireblight may appear on photinia, a bacterial disease after which shoots turn brown and wither as if scorched and bend into a hook shape. Cut affected branches deep into healthy wood and disinfect the secateurs between cuts. How to recognise individual diseases and pests is shown in the visual guide to plant diseases and pests.

Feeding – on good soil photinia hardly needs it. On poor soil one dose of fertiliser for ornamental trees and shrubs in spring is enough; feed plants in containers from April to July.

Safety for children and animals

Photinia is not in the ASPCA database of poisonous plants. Like many other woody members of the rose family, however, its leaves contain cyanogenic glycosides, from which hydrogen cyanide is released during digestion. For dogs and cats a little chewing is insignificant; the risk is rather with horses, sheep and goats, which might graze the hedge or cut branches. So do not give clippings to animals as feed and do not plant photinia as a paddock hedge.

Frequently asked questions

When should I prune photinia?

Two to three times per season, from the end of May to July. Make the last cut by mid August at the latest; later shoots would not ripen before winter and would be killed by frost.

How fast does photinia Red Robin grow?

Up to roughly 30 cm a year. From planting plants 60–80 cm tall you will usually have a dense hedge around 1.5 m in three to four seasons.

How many photinias per metre of hedge?

Two to three plants per metre in a single row, that is a spacing of 35–50 cm. For a hedge wider than a metre two staggered rows are planted.

Why are my photinia leaves turning brown?

In winter and early spring most often because of frosty wind and winter sun, when the plant cannot replenish water from the frozen soil. Purplish-brown dots and blotches point to leaf spot, which appears after cold and wet winters.

Will photinia freeze in winter?

Mature plants tolerate roughly −10 to −15 °C. In harder frosts shoots and leaves are damaged, but the shrub usually sprouts again. Protect young plants in their first winters with mulch and shading.

Is photinia poisonous?

It is not listed in the ASPCA database. The leaves, however, contain small amounts of cyanogenic glycosides, so do not give clippings to horses, sheep or goats.

Sources

Updated: 27 September 2026

Author: Jana Vránová, the editorial name of the Pěstík.cz team. She writes about the garden, herbs and essential oils. We take safety and dosage information from specialist literature and official sources, which we cite in every article.