Last updated on Jun 23rd, 2021 at 12:28 pm

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How many plants do you need?

Different rooms have different requirements. These amounts are based on medium sized plants of about 30cm in height. The general rule of thumb is the bigger the leaves and roots, the greater the benefits.

Small rooms (3m x 3m):

  • One plant: 10% wellbeing, 45% clean air
  • Two plants: 50% wellbeing, 75% clean air
  • Five plants: Maximum benefit

Medium rooms (4m x 5m):

  • One plant: 10% wellbeing, 25% clean air
  • Five plants: 60% wellbeing, 75% clean air
  • 10 Plants: Maximum benefit

Large rooms (8m x 8m):

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  • One plant: 10% wellbeing, 25% clean air
  • 16 plants: 60% wellbeing, 75% clean air
  • 32 plants: Maximum benefit

What to choose?

While all indoor plants provide benefits, some are more adept at removing toxins than others. There is a plant to match every indoor space and indoor gardener.

  • Spathiphyllum (peace lily): declared the best living air filter in the world by the NASA Clean Air study.
  • Chrysalidocarpus lutescens (bamboo palm): an indoor plant staple and immediately catch your eye, especially tall specimens.
  • Sansevieria trifasciata ‘Laurentii’ (variegated snake plant): can provide a structural contrast to the softer indoor plants.
  • Peperomia ‘Zorro: a deep red colour on the underside of the leaves and tall flower spikes for something a little different.
  • Kalanchoe blossfeldiana ‘Calandiva’: can quickly brighten a room or even be used as a quirky accent colour.
  • Ficus lyrata (fiddle leaf fig): giant glossy leaves can really bring the outdoors in as they can grow to be a tall indoor tree.
  • Bromeliad species: exotic textures and colours in your indoor space.
  • Philodendron scandens (sweetheart creeper): good in a hanging basket, as it is easy to care for and grows quickly.

5 Low-light plants for your home

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Sources: RMIT University, University of Melbourne and