01/06/2026
June gardening & greenhouse jobs reminder - please get in touch if you have any requirements on the points below, to secure your appointment.
Flowers
Lift and store tulip bulbs after flowering
Give wisteria its summer prune, cutting all the long sideshoots back to 20cm, to promote flowering next spring
Support tall-growing perennials, including hollyhocks and delphiniums, with a sturdy cane
Continue planting summer bedding in pots and borders, and water regularly to help plants establish quickly
Cut back spring-flowering perennials, such as pulmonaria, to encourage a fresh flush of foliage
Tie in new stems of climbing and rambling roses horizontally to supports, to encourage more flowers
Take cuttings from pinks and carnations, selecting non-flowering shoots, which should root readily
Pinch out the tips of fuchsias and bedding plants to encourage bushier growth
Give container displays and hanging baskets a liquid feed every few weeks to encourage flowering
Fill any gaps in borders with pots of tall bulbs, such as fragrant lilies, to add instant colour
Prune late-spring or early-summer shrubs after flowering, such as weigela and philadelphus, thinning out the older stems
Greenhouse
Sow herbs in pots to grow on your kitchen windowsill, such as coriander, parsley and basil
Plant out tender vegetables raised indoors, including beans, tomatoes, pumpkins, courgettes and sweetcorn
Pinch out the side shoots of cordon tomatoes regularly
Sow biennials, including foxgloves, honesty, wallflowers and sweet rocket, in seed trays
Water plants daily in warm weather, ideally in the evening or early morning, and avoid splashing the foliage
Increase greenhouse shading and ventilation to keep temperatures down on hot days
Feed flowering and fruiting plants weekly with tomato feed
Water greenhouse tomatoes regularly to prevent split fruits and blossom end rot
Treat pots with vine weevil control if this pest has been a problem in the past, as larvae become active this month
Water tomatoes regularly to void splitting and blossom end rot.
Garden maintenance
Empty, mix and refill compost bins to speed up decomposition
Spray roses showing signs of disease, such as black spot, powdery mildew or rust
Continue watering any new plantings until they're well established
Water newly laid turf several times a week, for at least the first month
Trim fast-growing hedges, such as privet, every six weeks over the summer
Put stakes in to support tall, large-flowered dahlias and tie in stems as they grow
Check hedges and shrubs for nesting birds before you start any trimming or pruning, so you don't disturb them
Remove any all-green shoots on variegated shrubs, cutting right back to their base
Dig out perennial weeds, such as couch grass and bindweed, as soon as you spot them
Feed lawns with a liquid or granular lawn fertiliser