Feeding basics

Liquid vs granular fertiliser: which is better for home gardens?

By Mark & Jake, Medibud founders · Updated 30 August 2026

The short answer

Liquid fertiliser acts fast (visible results in 1 to 2 weeks), doses precisely, feeds through both leaf and roots, and lets you change the diet the moment a plant changes phase. Granular fertiliser is slower but lasts longer per application and suits set-and-forget feeding of large areas. For home gardens, liquid wins on results and control; granular wins on convenience. Many good gardens use a granular base once a season plus liquid feeding for everything that matters.

How each one works

Liquid: a concentrate diluted in water (2.5 mL per litre with our feeds) and applied with a can or sprayer. Nutrients are immediately available, absorbed through roots and leaves within hours. Granular: dry pellets spread on the soil that break down with moisture over weeks or months, feeding roots only, on the fertiliser's schedule rather than yours.

The honest comparison

Liquid Granular
Speed of results Days to 2 weeks 3 to 8 weeks
Control of dose Exact, per litre Approximate, per handful
Burn risk Very low at label rates Real if spread unevenly or against stems
Feeds through leaves Yes (foliar) No
Changing diet mid-season Instant, next feed Locked in for months
Effort A feed every 1 to 2 weeks 1 to 3 times a season
Pets and kids Nothing left on the surface Pellets sit on soil; meal-based ones smell like food

Where liquid clearly wins

Anything you want visible results from (lawn colour, hungry veggies, a rose bed in season), anything young or delicate (see feeding seedlings), pots and containers, and any plant that changes phase mid-season. Two-phase feeding (grow then bloom) is only really practical with liquids, because you can switch feeds the week the buds appear. It is also the cheaper way to run a season than most people assume; we did the maths in what fertiliser really costs per feed.

Where granular earns its place

Big background jobs: a slow-release base over a large lawn at the start of spring, or feeding trees and shrubs you visit rarely. There is no shame in a hybrid routine: granular base once, liquid feeding fortnightly where it counts.

Common questions

Is liquid fertiliser more expensive?

Per bottle it can look it; per feed it usually is not. A 5 L concentrate making 2,000 L of feed works out around 45c per full watering can, which undercuts most granular programs per application.

Can I use both at once?

Yes. A slow granular base plus liquid feeding is a classic combination. Just count the granular as part of the diet and do not double up on nitrogen for flowering plants.

Which is better for lawns?

For colour and speed, sprayed liquid; for background feeding of a big area, granular. Our lawn routine shows the liquid schedule.

Put it into practice

Medigrow builds growth, Medibud brings the bloom. The bundle covers the whole season from 38c a feed, backed by the 30-Day Growers Guarantee.

Shop the two-feed system

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