Free 100ml Indoor Plant Food on $100+ Orders — Code: FREEFOOD
$24.60 – $36.50
| Nutrient | Symbol | Percentage (%) |
|---|---|---|
| Nitrogen | N | 16% |
| Phosphorus | P | 4% |
| Potassium | K | 14% |
Plus all essential trace elements
Looking for the best fertiliser for indoor plants? CompleteGrow’s Indoor Plant Fertiliser (NPK 16-4-14) is a professional-grade, low-phosphorus fertiliser formulated for delicate houseplants like aroids, ferns, pothos, and peace lilies. This gentle formula promotes lush leaves, strong roots, and steady growth without the risk of nutrient burn. Mix just 1 mL per litre of water — making it one of the most economical and effective fertilisers for indoor plants in Australia.
✅ Low-phosphorus NPK 16-4-14 formula safe for all indoor plant types
✅ Promotes lush foliage, stronger roots, and steady growth
✅ Fast-absorbing liquid indoor plant fertiliser — mix 1 mL per litre of water
✅ Ideal for aroids, ferns, pothos, philodendrons & peace lilies
✅ Australian-made – ships fast & free

Indoor NPK formula with essential trace elements to keep houseplants lush, compact and resilient. Higher N for healthy foliage, supportive P for roots, and strong K for colour, turgor and stress tolerance.
Indoors, plants live in limited media and stable climates, so balanced nutrition matters. This 16-4-14 profile feeds foliage-forward growers while keeping roots active and leaves firm under variable light and watering schedules. Trace elements (Fe, Mn, Zn, Cu, B, Mo) help prevent pale growth and patchy new leaves common in indoor conditions.
Rate is fixed at 1 ml per litre (≈ ¼ teaspoon per litre). Enter litres and the totals update automatically.


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