The world's first season-specific fertiliser.

Enjoy a thriving indoor jungle with The Ultimate Indoor Plant Food – the only fertiliser system that adapts to your plants' needs throughout the year. Four unique seasonal formulas for strong, beautiful houseplants. Just add a few drops to your watering can and watch your plants go wild.

  • Spring

    Potent plant tonic for fresh growth & vibrant colour.

  • Summer

    Exceptional nutrient blend for healthy leaves & stems.

  • Autumn

    Amino-acid infusion for resilience & relief.

  • Winter

    Gentle support for low light levels in the cool months.

  • Alocasia

    8 week test (identical conditions)
    Left: Spring Indoor Plant Food
    Right: Water only

  • Syngonium

    6 week test (identical conditions)
    Left: Spring Indoor Plant Food
    Right: Water only

Not all plant food is created equal.

Developed from over 20 years in global organic farming and rigorously tested, we've combined innovative natural ingredients and technology never before available to the home gardener.

The result is next generation indoor plant food – four season-specific formulations of vitamins, micro- and macronutrients, amino acids, natural growth promotants and more – Your plants won't believe their roots.

Buy Now for only €39
  • Australian Made & Owned

  • Natural Ingredients

  • Sustainable Packaging

  • Vegan Friendly

  • ★★★★★

    "I have been using your product since it came on the market. I no longer have to worry about the nutritional status of my indoor plants as they are healthy all year round … All the adults in my family are now using your product.
    Well done and thanks."

    – William M.

  • ★★★★★

    "… I bought myself another pack for Christmas and one also for a gift for my friend who is extremely envious at how much bigger and better my plants have become compared to his. Best stuff EVER!"

    – Michelle D.

  • ★★★★★

    "I have to admit I was very sceptical about Big Green Monster fertilizer. I’ve been using it from the start of October regularly & have to say I’m very impressed. My plants are doing very nicely & are really healthy. Thank you for finally working a formula that actually works! Congratulations!"

    – Christine Y

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