4 Waterwise Houseplant Care Tips

South Africa is a country of abundant diversity. Not only are her people and landscape varied, but so are the weather patterns that grace its lands, from the semi-desert of the Karoo, to the warm, humid pocket of KwaZulu-Natal. South Africa’s rainfall patterns are no different. The country experiences a high degree of sunshine and receives only half the global rainfall average. Due to this South Africa is known for sporadic droughts. So, We have collected 4 easy waterwise tips from around the world for saving water, whilst caring for your indoor plants.


  • Rain water : Place a bucket or small tank beneath the downspout of your roof gutter to collect rainwater. Rainwater gets soaked up by the soil or collects in stormwater systems which end up in the ocean. Collecting rainwater results in no net loss to a city’s water system. And unlike the treated water that comes out of our taps, rainwater contains no chlorine! Chlorine isn’t bad for the plant per se, but it does kill useful soil microbes that support the health and vitality of your plants.Plants are happier when they get to drink untreated water.

  • Take note, however: you may not be able to reuse the rainwater if you live in an area with high airborne pollution. Consider the following instead:

    • Spring or Stream Water : Natural springs or streams are another great alternative source of non-municipal water. If you have access to one of these sources close by, simply take an empty bottle or two with as you go outdoors to collect water. Not only will you get some fresh air and exercise, your plants will appreciate the high natural mineral content of these sources as well.


    Greywater is the generic term that refers to relatively clean waste water from showers, sinks, and washing machines. This water, once collected, can be stored for around 24 hours, thereafter it may develop an unpleasant odour.

    Although greywater containing standard cleaning detergents can be re-used, using chemical free or biodegradable cleaning detergents is better for the environment and your plants. Try to look for products that list natural cleaning compounds in them, such as natural fragrances and oils.

    • SINK - collect dishwashing water, if it is not too dirty or fatty: Reusing the rinsing water (if you have a separate sink to do dishes in) is a perfect source of grey water, as the existence of grease, food particles, and detergent is much lower than in the actual soapy dishwashing water. Reusing soapy dishwashing water is also possible if greasy items have not been washed in it.
    • Simply scoop the water out of the sink and into a larger vessel, from where you can continue to water your plants. Straining the greywater through an old nylon stocking to remove any excess food particles will reduce the risk of introducing unwanted bacteria in your potted plants.
    TOP TIP: Place a bowl in the sink to catch water from rinsing fruit and vegetables or washing hands. Water used to boil eggs and vegetables can be used for watering plants – just remember to let it cool first!
    • WASHING MACHINE – move the outlet pipe of the machine to a large bucket or sink/bath to collect the water for re-use: The rinse-and-wash water left over from washing clothes is re-usable. If you want to recycle the soapy water, try to use a biodegradable washing detergent. Collected rinse water can be re-used to wash the next cycle of clothing if you are washing by hand or own a top-loader. Alternatively, this water can be used for cleaning floors, bathrooms, or watering your precious indoor house plants.


    While you are waiting for the shower water to warm up, place a bucket or large bowl in the shower to collect the water. This water is clean and can be used for cooking and drinking. If you feel uncomfortable about drinking ‘shower water’, use it for rinsing dishes, cleaning or watering your plants instead.

    Showering with a bucket is another great way to collect water, as the shower water typically does not contain a high concentration of soap. Small quantities of oil, dead skin and hair may remain, but these can easily be filtered out with a reusable dishcloth. Bath water can also be used, but we hope that your bathing days have long past!


    Whether you are starting an indoor garden or want to add to your existing plant family, look for waterwise plants such as succulents or cacti.

    Mother in Law's Tongues, African Milk Trees, all succulents, and other indoor plants, such as Ponytail Palms and ZZ Plants are all plants that naturally consume very little water. You can take things a step further, by mixing moisture retaining granules into the soil. This is a very effective way to keep the soil moist, thus reducing the frequency that you need to water your plants. Reusing water that collects in the drip tray after watering should also always be poured back into the plant, instead of being thrown away.

    We can save water by collecting non-municipal sources of water, such as rain or spring water. We can also reuse some of the water from washing activities in the home and choose beautiful waterwise plants to decorate our living spaces. Reduce and reuse.

    Here are some great waterwise resources to educate yourself further:

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