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Plant Runner Indoor Plant Food 100ml Bottle - Liquid Fertiliser
Plant Runner Indoor Plant Food - 100ml Bottle of Liquid Fertiliser
Bottle of Plant Runner indoor plant food on a light green background
Bottle of Plant Runner indoor plant food on a beige background
Bottle of Plant Runner indoor plant food on a pink background

Indoor Plant Food 100ml

$14.00

The one thing most indoor plants are quietly missing.

Outdoors, plants send roots through the soil to find what they need. Indoors, they're stuck in a pot with whatever you give them — and once the available nutrients in the mix are used up, there's nowhere else for the plant to go. Our Indoor Plant Food is the easy way to keep giving them what they'd otherwise go looking for: a complete liquid feed of nitrogen, phosphorus and potassium (NPK), secondary nutrients, trace elements and seaweed extract, in a form roots can readily take up.

It's almost completely odourless — no fish-emulsion smell hanging around the lounge room — and it comes with a marked dropper so you're measuring properly, not guessing. One small bottle makes up to 100L of feed. For most plant collections, fed fortnightly through the growing season, that's well over a year in a single bottle.

Feeding is the last piece of the puzzle, not the first. Get light, water and mix right, and a good feed is what turns "surviving" into new leaves. Add 1ml per litre to your watering can, water as normal, and that's the whole job — no extra step in your routine.

Pairs naturally with the rest of the kit: our Neem Oil Leaf Shine for clean, dust-free leaves that make the most of their light, and one of our potting mixes when it's time to repot.

Made in Melbourne, formulated by horticulturalists (a.k.a. our nerdy selves).

Shake before use.

Add 1ml of Indoor Plant Food per 1 litre of water and water your plants as you normally would.

While your plants are actively growing (spring and summer for most), feed every second watering. This is the cadence that keeps new growth coming without overdoing it.

Over the cooler months, growth slows and so does the need to feed. Ease back to a half-strength feed roughly once a month.

For sensitive plants, feed at half strength.

Can also be used as a light foliar feed when diluted and applied with a mister. Avoid spraying in direct sun, or on delicate, hairy or freshly unfurled leaves.

Store out of direct sunlight.

This is a vegan-friendly product.

Volume: 100ml. Makes up to 100L
Bottle Material: Glass

Typical Analysis:
Nitrogen (N): 12%
Phosphorus (P): 2%
Potassium (K): 12%

Secondary Nutrients:
Calcium (Ca)
Magnesium (Mg)

Trace Elements:
Boron (B)
Iron (Fe)
Manganese (Mn)
Zinc (Zn)
Copper (Cu)
Molybdenum (Mo)

Plus seaweed extract.


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Indoor Plant Food 100ml

$14.00
Plant Runner Icon - Made in Australia
Plant Runner Icon - Horticulturally Backed
Plant Runner Icon - No Single Use Plastics
Plant Runner Icon - Donate with Every Purchase

FAQ

How often should I fertilise my plants?


While your plants are actively growing (spring and summer for most), feed fortnightly at the standard 1ml/litre rate. Over the cooler months, growth slows — ease back to a half-strength feed about once a month.

The simple rule: feed when the plant is growing, not by the calendar.

Can I use in passive hydro?

Yes — it works well in passive hydro. Add ½ml with each water change while plants are actively growing.

What is the shelf life of your Plant Food?

Five years.

What is the dilution rate?

1ml per litre of water.

Is your Plant Food ok for Orchids?

Yes, its fine to use on your orchids

Can I use it on outdoor plants, veggies and herbs?

Yes. It's fine outdoors and on edibles — just give your produce a wash before eating, as you would with anything.

Is your fertiliser a complete feed?

Yes. It carries the three macronutrients plants need most — nitrogen, phosphorus and potassium — plus secondary nutrients (calcium and magnesium), a full set of trace elements (boron, iron, manganese, zinc, copper and molybdenum) and seaweed extract. So your plants aren't left short of anything.

My Plant Food is lighter/darker than last time, has something changed?

Yes and no. It's the same product, with the same NPK and the same nutrient values. The only variable is the seaweed extract: it's shore-harvested and not from a single fixed source, so depending on the batch and variety, the colour can shift slightly. The feed itself is unchanged.

Will it burn my plants if I use too much?

Stick to 1ml per litre and you've got plenty of margin — it's a gentle, complete feed, not a harsh concentrate. If you do go heavier than intended, water through with plain water and resume at the right rate next time. The only real way to cause trouble is feeding hard and often through winter when the plant isn't growing, which lets unused salts build up in the mix. When in doubt, less.

My plant looks sad and isn't growing — will this fix it?

Sometimes, but it's worth being honest: feed helps a healthy plant do more, but it can't rescue one that's struggling with light, water or mix. If a plant is sitting in the wrong light, staying too wet, or stuck in tired mix, sort that first — then feeding gives it something to actually work with. Get the basics right and a good feed is what turns the corner.

Is it safe around pets and children?

It's a plant fertiliser, so it's not for eating — keep the bottle out of reach and stored sensibly, as you would any garden product. Once it's diluted and watered into the pot, there's nothing unusual to worry about. Just don't go drinking the concentrate.

Do I also need the Soil & Microbe Booster?


They do different jobs. Indoor Plant Food is your regular liquid feed — the nutrients a plant draws on as it grows. The Soil & Microbe Booster works on the soil, adding beneficial microbes and structure that help the mix stay alive and hold onto what you feed. Plenty of people use both; if you're starting with one, start with the feed.

Featured Post

Understanding Fertiliser

We created our Indoor Plant Food because we realised so many people had been overlooking the importance of it.  A good fertilising regime will keep your plants looking happy and healthy. 

Featured Post

How to fertilise plants in water? AKA Passive Hydro

Passive hydro (or passive hydroponics) is a type of hydroponic growing method that requires no recirculating systems, and instead supplies water only beneath the plant roots to be used by the plants.

Featured Post

Slow Release vs Liquid Fertiliser: When to use and what is the difference?

When talking about slow release fertilisers, we are talking about any fertiliser (synthetic or organic) that has been pelletised or produced as something that will slowly release nutrients into the soil over a period of time.

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