Flowers and bedding.
It should be safe to put out summer bedding at the end of the month. However do be
prepared to cover them with a layer of fleece if frost threatens. Mulch sweetpeas and tie
in as they grow. Dead head bulbs and allow the leaves to die down naturally. Weed beds.
Perennials.
Plant out Dahlia plants and protect from frost. Plant out Chrysanthemums. Stake and
support the taller growing plants. Water if necessary.
Shrubs and climbers.
Plant Arbutus, Choisya, Fuchsia and Hydrangea.Plant evergreens in showery weather. Mulch
Lilacs. Trim shrubs that have finished flowering. Clip formal bays. Dead head
rhododendrons and azaleas.
Trees and hedges.
Trim Lonicera and privet hedges.Trim Ribes and Forsythia hedges after flowering. Plant
evergreens during showery weather.
Roses.
Continue to spray and weed.
Lawns.
Keep feeding and mowing.
Vegetables.
Protect potato foliage from frost. Prepare beds for outdoor tomatoes, marrows and
pumpkins. Sow french beans and runner beans,summer spinach and salad.
Fruit.
Keep a good eye out for pests and diseases and treat as appropriate. If it is dry water
plants on which fruit is swelling. Continue to spray and control weeds. Tie in new growth
on bush fruit. Put down strawberry mats to protect the fruit from slugs. Start summer
pruning vines.
Pond.
Continue planting water plants and marginals. Remove algae and pond weed with a stick or
net. If possible flood the pond occasionally to keep bog plants wet.
Greenhouse.
Apply shading. Sow cucumbers, melons, and sweet corn. Pot on begonias and Gloxinias.
Continue to water and feed well. Pot cannas on.Support tomatoes as they grow and pinch out
the side shoots.
Indoors.
Continue watering and feeding freely. Prepare positions to move out Cymbidiums,
pelargoniums, azaleas and other plants that will benefit from spending the summer outside.
