When to plant Tomatoes in Newcastle upon Tyne

Solanum lycopersicum

Tomato
Tomato · Solanum lycopersicum

Tomatoes are popular annual plants that produce juicy, colourful fruits and thrive in warm conditions. They are native to South America and come in two main types, determinate and indeterminate. Determinate plants are bushy and self-supporting and indeterminate are tall plants that require staking and pruning.

180 cm · Full Sun · High Water

Calibrated to Newcastle upon Tyne · average last frost around 25 Apr

Sow indoors March, plant out April to May, harvest July to October. Typical frost risk October to April.
ActivityJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Sow indoorsNoNoYesNoNoNoNoNoNoNoNoNo
Plant outNoNoNoYesYesNoNoNoNoNoNoNo
HarvestNoNoNoNoNoNoYesYesYesYesNoNo

Growing guide

What to do through the growing season

Growing guide for

Change the guide to see different planting timelines and tips.

Grow tomatoes in a greenhouse for an earlier and longer harvest. This method provides protection from UK weather but requires ventilation and pollination attention.

  1. 01

    Sow Seeds Indoors

    11 Mar to 26 Mar

    Sow seeds in a greenhouse or indoors around 11th March - 26th March. Maintain a temperature of for germination. Use a propagator to ensure consistent warmth.

  2. 02

    Prick Out Seedlings

    25 Mar to 16 Apr Dates as each sowing reaches this stage

    Prick out seedlings into individual pots around 25th March - 16th April once true leaves appear. Use a peat-free compost and keep plants in a bright, frost-free greenhouse.

  3. 03

    Pot On Plants

    8 Apr to 30 Apr Dates as each sowing reaches this stage

    Pot on into larger containers around 8th April - 30th April to support root growth. Ensure the greenhouse is ventilated on sunny days to prevent damping off.

  4. 04

    Transplant into Greenhouse

    25 Apr to 2 May

    Plant into greenhouse beds or large pots around 25th April - 2nd May. Space plants apart. Water well and consider using grow bags for container growing.

  5. 05

    Support and Train Plants

    2 May to 16 May Dates as each sowing reaches this stage

    Install supports and train plants from 2nd May. Remove side shoots on cordon varieties and pinch out the tip after 6-7 trusses. Ventilate the greenhouse to reduce humidity and pollinate flowers by gently shaking plants.

  6. 06

    Feed and Water Plants

    9 May to 28 Oct Dates as each sowing reaches this stage Optional · repeat every 2 weeks

    Feed with a high-potassium fertiliser every 14 days from 9th May until 28th October. Water regularly to maintain even moisture, especially during fruiting, to prevent problems like blossom end rot.

  7. 07

    Harvest Tomatoes

    4 Jul to 28 Oct Dates as each sowing reaches this stage

    Harvest ripe fruits from 4th July until 28th October. Pick regularly to encourage continuous production. In a greenhouse, harvesting can extend later into autumn compared to outdoors.

Suggested varieties

Popular varieties of Tomato to consider

Gardener's Delight

A popular cherry tomato with sweet, abundant fruits. Ideal for UK gardens due to its reliability and good flavour.

Moneymaker

A classic cordon variety producing medium-sized red fruits. Known for its high yield and disease resistance in UK conditions.

Tumbling Tom

A trailing bush tomato perfect for hanging baskets or containers. Produces small red or yellow fruits without needing support.

Tomato guides by town

See how Tomato timing shifts in other towns with different frost dates.