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Kelp Core Lab
Seaweed extract prepared for tomato and fruiting crops

Feed Built for What Flowering Crops Actually Ask For

A cold-processed seaweed extract dosed for tomatoes, peppers, aubergines, and cucumbers.

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The Promise

A liquid extract measured to the potassium demands that rise once flowering begins, with a batch record and a dilution ledger so you know exactly what you're applying and when.

The Problem

Fruiting crops are demanding in a way leaf crops aren't — flowering and fruit set draw heavily on potassium, and a standard all-purpose feed often falls short right at the point it matters most. If your tomatoes have flowered well but fruited thinly, this is a familiar and fixable pattern.

The Solution

Our base material is cold-processed kelp collected from managed coastal beds, combined with fish-derived amino inputs and a measured trace element fraction. Each blend is prepared in five-litre or ten-litre volumes and labelled with batch date, dilution rate, and working shelf life, so nothing is left to memory.

The Experience

Alongside the extract, you'll get guidance on both foliar and root application, including the times of day when foliar work tends to sit more gently with the plant. We're candid about what to expect: this supports a plant that's already well watered and reasonably sited — it won't compensate for poor light or compacted soil.

The Investment

¥4,200

Available in five-litre or ten-litre prepared volumes.

  • · Prepared extract, batch labelled
  • · A batch origin note naming region and drying method
  • · A dilution ledger for each growth stage
  • · Foliar and root application guidance

The Proof

Growers applying this extract on a consistent schedule tend to see steadier fruit set across the flowering period rather than an early flush that tapers off. Results depend heavily on watering and light, which is why we're upfront about what the feed can and can't change.

The Guarantee

If you're unsure whether your crop and conditions suit this extract, reach out before ordering and we'll talk it through honestly, including cases where we'd suggest sampling first.

Next Steps

Tell us what you're growing and your rough plot size, and we'll confirm the right batch volume and get a dilution ledger prepared alongside your extract.

Ready to Feed Your Flowering Crops Properly?

Order a Batch

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