January is one of the quietest months in the garden, but it is still an important time for planning and getting ready for the year ahead. Days are short, temperatures often drop below freezing, and most plants stay dormant until spring. Even so, many gardeners use the first few weeks of the year to take stock, check their outdoor spaces and prepare for the busy months to come.
It is also a good time to enjoy fresh air on dry days, make sure winter protection is still in place and put out food for birds. Some people leave corners of their garden untouched for a bit longer so wildlife has shelter during the coldest part of winter. Others spend the month ordering seeds, drawing up plans and thinking about what they want to grow.
But there is one job experts say should be near the top of the list for anyone who owns a greenhouse.
It is simple, it does not cost much, and it makes a big difference to how well plants grow later in the year.
According to the Royal Horticultural Society (RHS), gardeners should clean their greenhouse in January.
The RHS says this one job can greatly improve conditions for plants. Clean panes let in more light, which helps seedlings grow stronger and stops them becoming leggy.
It also reduces the risk of pests and diseases because dirt, algae and moss can give insects and spores places to hide.
Experts say a tidy greenhouse also makes it easier to work. Shelves, pots and tools are easier to find, and any problems with the structure, like broken panes or loose fittings, can be spotted before the growing season begins.
A regular clean can even extend the life of a greenhouse by keeping it in good condition.
The RHS explains that all types of structures should be cleaned at least once a year.
That includes glasshouses, plastic greenhouses, polytunnels and garden frames. Many gardeners choose winter because it is the only time their greenhouse is completely empty.
Cleaning usually starts with removing all plants and equipment so the whole space is clear.
The floor and frame can then be swept to get rid of soil, leaves and debris. Dirt caught between panes should be eased out before washing, and gutters need to be cleared so water can flow properly.
Warm water and a soft cloth are recommended for cleaning the glass, both inside and out.
Floors can be scrubbed with warm water as well, and shelves, pots and tools should be washed before going back in.
Any broken parts should be repaired or replaced while the space is empty.
Once everything is dry, the equipment can be returned, and the greenhouse will be ready for spring.
The RHS says setting aside a single mild, dry day is usually enough to get the job done.
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