Your Bucket List Of Things To Get Done In The Garden During May
You can still divide herbaceous perennials now to improve their vigor and create new plants.
Tie up the foliage of spring-flowering bulbs. Do not cut off the foliage until they turn brown.
Prune out overcrowded and dead stems of early-flowering clematis after flowering.
Tie in climbing and rambling roses. Laying the stems horizontally will help to produce more flowers.
Prune spring-flowering shrubs after flowering.
Trim lavender plants now, cutting off any old flower heads and about 1 inch of the current year’s growth.
Feed and water container plants.
Top-dress permanent pot plants to refresh the compost.
Give your container plants a balanced liquid feed every two to four weeks to promote healthy growth.
Start to closely inspect your plants for pests and diseases – early prevention is easier than curing an infestation.
Look out for signs of blackspot on roses. If discovered, Blackspot can be treated with a systemic fungicide.
Continue to weed beds and borders to prevent competition for water and nutrients.
Continue earthing-up potatoes.
Harvest asparagus spears when they are no more than 7” tall.
Harvest rhubarb, picking only a third of the total amount of stems.
Thin out direct-sown vegetables such as spinach, carrot and lettuce seedlings then water the rows well.
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