House plants that require different watering
While these rules work for most regular house plants, there are a few groups that need special treatment. Carnivorous plants hail from bogs and marshes, so they need wet compost at all times. At the opposite end of the spectrum, desert cacti and succulents need much less water. In summer, water regularly, but in winter give only the bare minimum to succulents and keep cacti completely dry. Orchids can be challenging as their potting compost always looks dry, but don’t be tempted to water too often as their fleshy roots rot readily. With moth orchids (Phalaenopsis), wait until the roots look a silver colour before watering (the roots turn green when wet). With all others, water with caution, if the pot feels light when lifted.
Feature by Dr. Ross Bayton.