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Gardener's Diary

September


In association with the Royal Horticultural Society

The Royal Horticultural Society

The Royal Horticultural Society is the UK's leading gardening charity dedicated to advancing horticulture and promoting good gardening.

Their goal is to help people share a passion for plants, to encourage excellence in horticulture and inspire all those with an interest in gardening.

In this section on Laterlife they share their expertise to provide your Jobs for the Month - making sure that your garden is ready for the season ahead.

Find out more about how to become a member of the RHS

Fan-trained trees: pruning established fans

Fan-trained fruit trees need summer pruning to ensure the shape is maintained and there is plenty of fruiting wood. Annual pruning varies according to the fruit type and there are details below to help with these.

Quick facts

  • Suitable for: Almonds, apples, apricots, cherries, figs, gooseberries, nectarines, peaches, pears, plums and redcurrants
  • Timing: Summer
  • Difficulty: Moderate

Suitable for... Fan-trained almonds, apples, cherries, figs, gooseberries, peaches, nectarines, apricots, pears, plums and redcurrants need to be pruned annually.

Fans are commonly used for stone fruits (eg. cherries and peaches), as they are not suited to being trained as espaliers or other restricted forms.

When to prune established fans

Prune fans in spring and summer on a dry day (when the risk of fungal infection is low). Removing leafy growth helps to restrict the vigour of trained fruit forms.

  • Fig fans can be pruned in spring once the frosts have passed
  • Redcurrant and gooseberry fans should be pruned in mid-summer and again in winter
  • Apples and pear fans should be pruned in late summer when growth has slowed, to deter re-growth and encourage fruit buds
  • Stone fruit pruning should be completed by late August to minimise the risk of fungal diseases, such as silver leaf

When it is necessary to remove a large limb within a fan, do this when apples pears, redcurrants and gooseberries are dormant in winter or in April for stone fruit, reducing the risk of fungal diseases to which they are prone.

How to prune established fans

Peaches, nectarines and acid cherry

  1. These fruit almost entirely on shoots made in the previous season; so pruning aims to replace fruited wood with new, young wood
  2. After harvesting, cut older, fruited wood back to a vigorous new shoot and tie the young shoot into the framework in place of the older wood (replacement pruning). This new shoot should ripen and bear fruit next year
  3. Entirely remove badly-placed shoots (such as those growing into the wall)
  4. Reduce to two leaves any shoots that can’t be tied into the framework (due to lack of space or because they point directly away from the wall)

Apricots, sweet cherries and plums

  1. These bear fruit both on shoots made the previous season and on older wood; so pruning aims to create fruiting spurs and to occasionally replace some of the older wood with new, young wood
  2. In June, tie shoots into the framework where there is space
  3. Entirely remove congested or badly-placed shoots (such as those growing into the wall) as they appear
  4. Pinch back the remaining, new shoots to six leaves
  5. In August, after fruiting, shorten them further, cutting to three leaves to create a spur that will bear fruit next year
  6. Vigorous plums are prone to producing strong, upright shoots. If these cannot be tied down more horizontally into the framework, they should be cut out altogether
  7. Replacement pruning of one or two branches is recommended each year to ensure the framework includes young wood. Do this after fruiting in summer (following instructions for peaches, nectarines and acid cherries, point 2). With late plum cultivars harvested in autumn, replacement pruning can be left until spring

Apples and pears

  1. Apples and pears bear fruit on older wood, so pruning aims to build up a system of short spurs on an established framework. These spurs will bear fruit when they reach three years old
  2. Only prune new shoots that are longer than a pair of secateurs; leaving shorter ones unpruned
  3. Prune those that arise from the main framework to three leaves above the basal cluster of leaves. This will create a spur from which fruit will be borne in future years
  4. Prune those that arise from other laterals or spurs to one leaf above the basal cluster to keep the spur system compact
  5. Once fans are mature, old, congested spur systems may need thinning out in winter

Gooseberries and redcurrants

  1. These bear fruit at the base of wood produced in previous seasons, so pruning aims to establish a spur system
  2. In early June, pinch back new shoots to five or six leaves
  3. In winter, cut these shoots back to two buds to form a short spur, which will carry fruit
  4. Once fans are mature, old, congested spur systems may need thinning out in winter

Figs

  1. Fruits mature from tiny, embryonic figs borne at the tips of stems produced in the previous year. Pruning aims to provide a plentiful supply of well-placed shoots and embryonic fruits by autumn
  2. In June, pinch out the growing tip of every other young shoot carried on the main framework to encourage lower, bushier growth
  3. As shoots develop, tie them into the wires
  4. In November, prune back to 2.5cm (1in) half of the shoots that carried fruit to encourage new shoots in spring
  5. Tie in all remaining shoots, aiming for them to be evenly spaced 22.5-30cm (9in-1ft) apart

Recommended reading

For more detailed pruning instructions, read:

RHS Pruning and Training by Christopher Brickell and David Joyce (Dorling Kindersley 1996, ISBN 9780751302073)
RHS Fruit by Harry Baker (Mitchell Beazley 1995, ISBN 9781857329056)
The Fruit Garden Displayed by Harry Baker (RHS 1991, ISBN 9780304340163)
These books are also available through the Lindley Library.

The Royal Horticultural Society

Want more Gardening tips?
Why not view the Royal Horticultural Society's website.



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