Feeding your indoor plants on a regular basis is essential to keeping your plants looking happy, healthy and beautiful.
Why do you need to fertilise your indoor plants? As a plant grows, it depletes the nutrients in the soil. This is particularly true of indoor plants, as they don’t have a regular source of nutrient replenishment unlike plants that have been planted in the garden. Plus, each time you water your indoor plant, the nutrients leach out of the soil. By adding fertilizer, you’re introducing nitrogen, phosphorus, and potassium to the soil.
How often? Depending on the type of fertilser you purchase, you can fertilise your indoor plant anywhere between once a month, to every 6 months. You should fertilise regularly when the plants are flowering. In the cooler months, you shouldn’t have to fertilise as much, unless the plant is showing signs that it needs fertilizing, such as dropping laves or turning a yellow-green colour. But always follow the instructions on the box, as too much fertiliser could kill your plant. It’s better to give it too little and then top it when required.
Types of fertilisers: There are all types of fertilisers available for different purposes including fertilisers for lawns, roses, acid-loving trees and shrubs, bulbs, and vegetables, with each type specifically formulated for each type of plant group. They also come in ready-to-use liquid form, water soluble form and slow-release in pellets. A slow release fertilizer is a good option for indoor plants.
Some fertilisers provide continuous balanced plant feeding for up to 6 months as well as a wetting agent to improve watering efficiency. Water-soluble fertilsers are great for indoors as it doesn’t leave an odour. It doesn’t hurt to give your plant some liquid food on top of the slow release, just to give it a quick boost. Either a blood and bone liquid fertilizer or a liquid seaweed plant conditioner will work well.