The Best Indoor Plants to Purify Your Air (And How Not to Kill Them)

There's a reason indoor plants have become such a fixture in Aussie and Kiwi homes — they soften a room, add life to a windowsill, and yes, many varieties genuinely help freshen the air you're breathing indoors. But if you've ever brought home a beautiful indoor plant only to watch it slowly decline over a few weeks, you're not alone. Indoor plants have a reputation for being tricky, when really it just comes down to matching the right plant to the right spot and a few simple habits.

Here are some of the best air-purifying indoor plants for Australian and New Zealand homes, plus exactly how to keep them thriving rather than just surviving.

Why Indoor Plants Matter

Beyond simply looking gorgeous, indoor plants can help filter common airborne toxins, add a bit of humidity to dry, air-conditioned rooms, and have been shown to support better mood and focus. They're an easy, low-cost way to make an indoor space feel calmer and more alive.

The Best Air-Purifying Indoor Plants

Peace Lily — A classic for good reason. Peace lilies tolerate lower light better than most flowering plants and will dramatically droop when thirsty, making them one of the easiest plants to read. Their glossy leaves and elegant white blooms suit almost any indoor setting.

Spider Plant — Nearly impossible to kill, spider plants tolerate a wide range of light conditions and irregular watering. They also produce "babies" on long arching stems that can be potted up to create new plants for free.

Snake Plant — With striking upright, sword-like leaves, snake plants are famously tough, tolerating low light and infrequent watering better than almost any other indoor plant. They're a great choice for beginners or forgetful waterers.

Devil's Ivy (Pothos) — A trailing, glossy-leafed climber that handles low light, irregular watering, and general neglect with ease. It looks fantastic cascading from a shelf or hanging basket and is one of the most forgiving plants you can grow indoors.

Rubber Plant — With large, glossy, deep-green leaves, rubber plants make a bold statement while tolerating a range of indoor conditions. They prefer bright, indirect light but will adapt to slightly dimmer spots.

Boston Fern — Loves humidity, making it perfect for a bright bathroom or kitchen. Its soft, feathery fronds add lovely texture, though it does need more consistent watering than some of the tougher plants on this list.

How to Keep Your Indoor Plants Thriving

Match Light to Plant — Before buying, check how much natural light your intended spot actually gets. Most indoor plants prefer bright, indirect light — direct hot sun through a window can scorch leaves, while very dim corners will slowly starve a plant of energy.

Don't Overwater — The single biggest killer of indoor plants isn't underwatering, it's overwatering. Always check the soil before watering; if the top few centimetres are still moist, hold off. Make sure pots have drainage holes and never let plants sit in a saucer of water.

Choose the Right Pot — A pot that's too large holds excess moisture around the roots for too long, increasing the risk of root rot. Go up only one size at a time when repotting.

Watch the Leaves — Your plant is always telling you something. Yellowing leaves often mean overwatering, crispy brown tips can indicate low humidity or underwatering, and leggy, sparse growth usually means insufficient light.

Wipe Down Leaves — Dust build-up on leaves blocks light and reduces a plant's ability to photosynthesise efficiently. A quick wipe with a damp cloth every few weeks keeps leaves clean and glossy.

Feed During Growing Season — Most indoor plants benefit from a diluted liquid fertiliser every 4–6 weeks during spring and summer, tapering off over the cooler months when growth naturally slows.

Common Beginner Mistakes to Avoid

  • Watering on a fixed schedule instead of checking the soil first
  • Placing a low-light plant in direct, harsh sun (or vice versa)
  • Ignoring drainage and letting pots sit in water
  • Repotting into a pot that's far too large
  • Giving up on a struggling plant too soon — many will bounce back once conditions are corrected

Ready to Green Up Your Indoors?

The right indoor plant, in the right spot, with just a little consistent care, can transform a room and freshen the air you breathe every day. Start with one or two of the tougher varieties above, get a feel for their rhythm, and build your indoor jungle from there.

Pop into your local Gro garden centre to see our full range of air-purifying indoor plants and get personalised advice on the best variety for your light conditions — see you in store!