3. Eggshells
Eggshells can be used in outdoor plant pots to deter slugs from feasting on the leaves of your favourite plants.
However, eggshells can also be used to give your houseplants a calcium boost. Fiona explained: “Putting crushed eggshells in the soil of your houseplants is a quick and easy way to provide them with extra calcium.
“Simply crush the eggshells using a food processor or a pestle and mortar until they’re almost a powder.
“If you’re planning to repot your plant then mix the eggshells into the soil as you do this, this will get the best results. However, if not you can still spread the eggshells onto the soil around the plant.”
4. Banana skin
Gardeners can make a homemade fertiliser using banana skin to give their indoor plants an “extra boost” when watering them this winter.
Simply put the banana skin into a jar of water and leave it for 24 hours and then use the water to feed your plants.
The banana skin will give the plants nutrients such as potassium, phosphorus and calcium which will make them stronger as well as deter pests.
