Collection: Liquid Fertiliser

The fastest way to feed a plant

A granular feed takes weeks to break down and reach the root. A liquid takes days, and a foliar spray takes hours. That is the whole case for keeping liquids alongside your dry amendments: they are what you reach for when a plant needs help now, not next month.

What is in the range

• Complete liquid feeds. Liquid 5-2-5 for balanced growth and Liquid 3-2-6 for the flowering and fruiting stage.
• Single nutrients. Liquid amino nitrogen, liquid potash and liquid magnesium, for correcting one thing without disturbing the rest.
• Micronised mineral suspensions. Liquid gypsum for calcium and sulphur, and liquid silica from micronised diatomaceous earth. Pourable, no mixing, fast to absorb.
• Chelated trace elements. Micro 7 delivers seven essential trace elements in a form the plant can take up directly, and Ecothrive Trace covers the same ground in a different format.
• Biostimulants. Brix+, a concentrated kelp extract with triacontanol and seven growth promoters, and liquid amino acids.
• Root starters. Liquid seedling feed, NPK with humic acid, for the first weeks and after transplanting.
• Lawns. Liquid Lawn Feed 5-2-5, for a faster response than a granular feed can give.
• Living feeds. Soil Smiths Living Feed, a microbial foliar and root application that carries biology as well as nutrition.

Foliar or root drench

Most of these work both ways. Foliar sprays act fastest, within hours, and are the right choice when you can see a deficiency and want it corrected quickly. Root drenches feed the soil as well as the plant and last longer. A wetting agent added to either makes a noticeable difference to how evenly the solution spreads, which is worth understanding before you spray anything: here is what a wetting agent actually does.

Working out how much to mix? Use the liquid fertiliser calculator.

Common questions

When should I use a foliar spray rather than a soil drench?

Foliar for speed, when there is a visible deficiency you want corrected in days. Drench for depth, when you want to feed roots and soil biology for longer-lasting effect. Many growers do both across a week.

Can I mix several liquid feeds in one watering can?

Most are compatible, but patch-test first. Avoid mixing strongly alkaline products with acid-pH biostimulants, because they can precipitate out and clog a sprayer.

Are micronised suspensions safe in a sprayer?

Yes. Agitate well before pouring and use a 50-mesh or coarser nozzle to prevent clogging.

What is liquid gypsum for?

Micronised calcium sulphate in a pourable suspension. On heavy clay it helps break up compaction and improve drainage; on lawns it delivers calcium and sulphur without changing pH. It is also the fastest calcium correction for blossom end rot. More detail in the liquid gypsum FAQ.

How often should I apply?

It varies by product, and rates are on each page. Most are reduced or paused through winter and dormancy.

Do liquids replace my granular feed?

Not usually. Granular feeds carry the season, liquids handle speed and correction. Most growers run both.