Greenhouse job checklist - week 29

15 - 21 July 2013

It's time to...

Hang up sticky yellow traps to catch whitefly and flying insects
Propagate houseplants, including monstera, dracaena and croton, by air layering
Repot any plants that are pot bound or getting top heavy. Tall plants are best placed in terracotta pots for extra stability
Open all vents and prop doors open on warm days to improve ventilation
Bring large-leaved houseplants into the garden and hose them down to clean off dust. Wipe dry and apply a leaf shine for an attractive glossy finish before bringing back inside
Thin bunches of greenhouse grapes
Take cuttings from pelargoniums, fuchsias, marguerites, penstemon, carnations, diascia and many others
Damp down the greenhouse floor each morning on hot days to increase humidity
Stand pot plants on capillary matting, or in trays of gravel and water, so they don't dry out