insideKENT Magazine Issue 53 - August 2016 | Page 139

OUTDOORLIVING YOUR GARDEN THIS august TOP 10 JOBS THIS MONTH 1. Prune wisteria 2. Don’t delay summer pruning fruits trained as restricted forms 3. Deadhead flowering plants regularly 4. Watering – particularly containers and new plants, preferably with grey recycled water or stored rainwater 5. Collect seeds from garden plants 6. Harvest sweetcorn and other vegetables as they become ready 7. Continue cutting out old fruited canes on raspberries 8. Lift and pot up rooted strawberry runners 9. Keep ponds and water features topped up 10. Feed the soil with green manures PRUNING WISTERIA Wisteria needs regular pruning to keep the growth and size under control, but it will also improve the flowering display. When to prune wisteria: Wisteria is pruned twice a year, in July or August, then again in January or February. How to prune wisteria: Wisterias can be left to ramble unchecked where space allows but will usually flower more freely and regularly if pruned twice a year. The removal of growth in summer allows better air circulation and more sunlight to reach the base of the young growths, encouraging better ripening of the wood and improving the chances of flower bud formation. Restricting the amount of vegetative growth and encouraging short, flowering spurs will result in more flowers. Summer pruning (July or August): Cut back the whippy green shoots of the current year’s growth to five or six leaves after flowering in July or August. This controls the size of the wisteria, preventing it getting into guttering and windows, and encourages it to form flower buds rather than green growth. TIPS FOR ECONOMICAL WATERING 1. Established trees and shrubs do not generally need watering, as they have such wide-ranging roots that they are drought-proof. But their growth may be improved by watering when they are under drought-stress. 2. Trees and shrubs planted less than five years ago have increased water requirements and may suffer drought-stress without watering. 3. Newly sown or newly planted areas are very vulnerable to water-stress, and watering these should be high priority. 4. Herbaceous perennials often need watering to boost their performance in hot, dry spells. Plant choice is crucial if you want to achieve a drought-proof border. See RHS’s advice on drought-resistant plants for more on plant choice. 5. Edible produce yields and quality are greatly improved by watering at times when drought stress would affect the part of the plant that is gathered. Leafy crops such as lettuce and spinach should never be short of water. Onions require little or no watering. Most other crops need watering at sowing and transplanting time, and then again as the fruits, roots or tubers are developing. It is also a good idea to give a single, thorough watering about two weeks before harvest. 141 6. Lawns require great quantities of water for thorough irrigation, and this is a questionable use of a scarce resource for any other than high quality lawns or sports turf. Instead of watering in dry periods, mow less closely and less frequently. Brown patches usually recover when the autumn rains return. 7. Mulching with a layer of organic matter or gravel at least 5cm (2in) thick, or using opaque mulching sheets, reduces moisture loss from the upper layers of the soil. This may amount to as much as the equivalent of 2cm (0.75in) of rain. 8. Removing weeds is vital, as weeds use up valuable soil moisture reserves. 9. Planting n ew plants between autumn and spring gives them the best chance of growing roots before dry weather begins. The RHS is a UK charity established to share the best in gardening. Their work is driven by a simple love of plants and the belief that gardeners make the world a better place. For more information visit www.rhs.org.uk