In Perth, Cymbidiums are the easiest orchids to grow, but Phalaenopsis, Dendrobiums, and Cattleyas also do well. Orchids in full bloom make a show-stopping display.
Location
Lack of sun causes a decrease in flowering. Some orchids can tolerate full sun all year but it’s best to find a position that gives 50% shade in summer, such as under shade cloth or an open shaded tree. The pot should be positioned off the ground to allow for air movement and drainage.
Watering and fertilising
Water weekly in the cooler months and daily during summer (watering at night causes a drop in temperature which helps with flowering). Half-strength liquid fertiliser can be used weekly. When watering, thoroughly saturate the potting medium until water runs from the bottom of the pot.
Re-potting and dividing
Orchids should be re-potted every couple of years, either in spring or after flowering. Plant in a plastic pot containing pine bark and slow-release fertiliser. If an orchid plant needs to be divided, each piece should have a minimum of three green bulbs. Back bulbs (old bulbs without leaves) can be potted individually.
Cutting flower spikes
Cut flower spikes off at the base no longer than 4 weeks after first flowering. Keep them looking fresh in a vase by changing the water every week and cutting a centimetre off the stem.
For fact sheets on growing other types of orchids, visit The Orchid Society’s website: orchidsocietywa.net.au
