Tomato Feed Calculator — Feeding Schedules & Quantities

Begin once the first truss of fruit has set, typically in June. Feed weekly outdoors (every 7-14 days), or at alternate waterings under glass where growth is faster. Do not feed before fruit sets — early feeding just pushes leafy growth.

Levington Tomorite is diluted at 20 mL (one capful) per 4.5 litres of water — about 4.4 mL per litre. A 1 litre bottle makes roughly 225 litres of ready-to-use feed.

Yes. Overfeeding causes lush foliage at the expense of fruit, and the resulting growth surge can trigger blossom end rot. Stick to the label dilution rate rather than making it stronger.

A high-potash feed encourages fruiting and flowering. Tomorite is NPK 4-3-8 (plus magnesium and seaweed). General-purpose feeds carry too much nitrogen, which favours foliage over fruit.

Yes. Any fruiting or flowering plant benefits from high-potash feed, including peppers, aubergines, cucumbers, strawberries, and flowering hanging baskets.