Most of the cacti and succulents you see for sale in retail outlets should do well on a sunny windowsill. Here are a few tips to get you started but for more advice why not come along to one of our meetings?
Light is very important
Most cacti and succulents need bright sunlight to flourish and flower well. A greenhouse or conservatory provides the best environment but a bright, south-facing windowsill will be sufficient for many species. We can help you decide what would suit your growing conditions.
Water them . . . but not too much
Water your cacti and succulents during spring and summer every 1-2 weeks, depending on the weather. The compost should be allowed to dry out between waterings and plants should never sit in water. Between September and March your plants should be left dry to avoid rotting, but if kept indoors it’s best to put them in a cooler room and away from a radiator to prevent shrivelling.
Be careful with temperatures
If you grow you plants in a greenhouse or conservatory don’t let your plants get too hot or they may scorch. Many succulents do well outside in the summer rain (but don’t put them in saucers) as can cacti but they should be put under shelter to avoid over-watering.
Most species are tolerant of cold conditions if kept dry but frost should be avoided. Many cacti flower better if given a cool, dry, winter rest.
Pots should have drainage holes
Keep your cacti and succulent in pots that have drainage holes at the bottom, otherwise the plant can become waterlogged and may rot. Avoid overly large pots as the compost may dry out too slowly after watering, which can also lead to rotting.
Growing medium should be free draining
Cacti and succulents require a free-draining compost, such as a mixture of one part John Innes No 2 or 3 and one part coarse grit. Repot every two or three years for healthy growth. You can give them a low-nitrogen fertilizer or special cactus fertilizer during the summer months.
A FREE cultivation guide is available at branch meetings so come along!