Houseplant hacks: is a hygrometer a gimmick or a godsend?

Hot radiators and cold draughts can wreak havoc with plants in winter, so do you need a gadget to measure the temperature and humidity of your home? The problem Winter is often seen as downtime for houseplants, so they can get forgotten.

Colder days mean the heating is on, the air dries out, and draughts creep in at every window or door. Tropical plants that thrived in summer can start to sulk. Could a digital thermometer and hygrometer to monitor the humidity help redress the balance? The hack Pop the cheap gadget among your plants for a live update on temperature and…