Neutrog Rapid Raiser, what it is and when to use it

May 29, 2025

Neutrog Rapid Raiser, what it is and when to use it

Rapid Raiser is one of those bags that sits in a lot of sheds around here and gets used without anybody being completely sure what is in it, so this is the plain version. It is a pelletised organic fertiliser made by Neutrog, and it is a general feeder rather than a specialist one, which is why it turns up in so many gardens.

What is actually in the bag

It is a blend of organic materials that has been composted and steam treated, then pelletised so it is cleaner to handle and easier to spread. The composting and the steam treatment matter more than they sound, because that is what stabilises the nutrients and leaves the product free of parasites, pathogens and weed seeds, which is not something you can say about raw manure out of a trailer.

The analysis is 4:3:2, so nitrogen, phosphorus and potassium in that order, plus the secondary nutrients and trace elements in a natural form. It is registered with Australian Certified Organic, which means the raw materials are traceable and the manufacturing gets audited against their standards.

The part that gets talked about least is the microbiology. It is described as a living fertiliser because the process keeps the microbes alive in the pellet, and what you notice over a couple of seasons is earthworm and microbial activity in the bed rather than a quick green up and nothing else.

What to use it on

It is a general purpose feed, so it goes on vegetables, flowers, fruit trees, shrubs and pots. Professional growers use it on commercial crops of vegetables, flowers and fruit, which is a reasonable guide to how broadly it applies. If you want one bag in the shed that will feed most of the garden, this is the shape of product that does it.

What it is not is a lawn fertiliser or a native feed. Natives that dislike phosphorus want something low in it, and a lawn wants a fertiliser built for turf, so those are different bags.

How to put it on

Spread the pellets around the drip line, which is the ground under the outer edge of the leaves, rather than piling them against the trunk or the stem.
Scratch them lightly into the top of the soil with a hand fork or a trowel so they are in contact with the ground rather than sitting on the mulch.
Water it in properly. The pellets need moisture to start breaking down, and a dry bed just holds them there doing nothing.

On timing, the two obvious feeds are as the beds wake up in spring and again in autumn to build the soil going into winter. For anything cropping continuously, like tomatoes, chillies or leafy greens, feeding every six to eight weeks through the growing season keeps it going rather than letting it run out halfway.

Is it a beginner product

Yes, and that is most of why it is popular. There is no mixing, no measuring jug and no way to burn the garden if you are slightly heavy handed, which is not true of every fertiliser on the shelf. Open the bag, spread it, water it in.

Shop related products

Neutrog Rapid Raiser 20Kg. The certified organic pelletised feed this whole post is about.
Neutrog Bounce Back 20kg. The same idea in a different blend, and another good all rounder.
Seamungus 500g. Seaweed and fish based conditioner in a small pack, good for pots and small beds.
Go Go Juice 1 Litre. Liquid tonic that puts microbes back into tired soil between the pelleted feeds.
Neutrog Cock-a-Doodle Doo 20kg. Pelletised chicken manure for beds that need building up rather than just feeding.

The full Neutrog range is in the garden centre, and there is more of the garden gear in the garden range online. The big bags are heavy, so if you would rather not lift one into the boot, we deliver Tuesdays and Thursdays on anything bought from us, $5 around Strathalbyn and $10 on the regional run. Local delivery.

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Neutrog Rapid Raiser, what it is and when to use it