Tomato

Tomatoes in Afon-wen

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.

Height180cm
SunlightFull Sun
WaterHigh Water

Growing Guide

Step-by-step instructions for growing Tomato

Planting Calendar

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Growing Guide for

Change the guide to see different planting timelines and tips.

Grow tomatoes outdoors in a sunny, sheltered spot. This method is common in UK gardens but requires careful timing due to frost risks.

1
Sow Seeds Indoors

30 Jan - 14 Feb

Sow seeds indoors in modules or small pots around 30th January - 14th February. Use a heated propagator or warm windowsill at for germination. Keep the compost moist but not waterlogged.

2
Prick Out Seedlings

20 Feb - 27 Feb

Once seedlings develop their first true leaves, prick them out into individual pots around 20th February - 27th February. Handle seedlings by the leaves to avoid stem damage and plant at the same depth as before.

3
Pot On Plants

6 Mar - 13 Mar

Move plants into larger pots around 6th March - 13th March to prevent root restriction. Use a good quality potting compost and water well after repotting to settle the roots.

4
Harden Off Plants

30 Mar - 6 Apr

Gradually acclimatise plants to outdoor conditions over 10-14 days starting around 30th March - 6th April. Place them outside in a sheltered spot during the day and bring in at night, increasing exposure each day.

5
Transplant Outdoors

6 Apr - 13 Apr

Plant tomatoes in their final position around 6th April - 13th April after frost risk has passed. Space plants apart in fertile, well-drained soil. Water in well and consider using cloches or fleece for extra protection.

6
Support and Train Plants

16 Apr - 23 Apr

Provide stakes or cages for support from 16th April. For cordon varieties, remove side shoots regularly to direct energy into the main stem. Pinch out the main growing tip after 4-6 trusses have set to force ripening in the UK climate.

7
Feed Plants

26 Nov - 23 Apr
every 2 weeks

Apply a high-potassium liquid fertiliser every 14 days starting around 26th November and continuing until 23rd April. This supports flowering and fruit development. Water plants regularly to prevent blossom end rot.

8
Harvest Tomatoes

26 Nov - 23 Jun

Pick fruits as they ripen from 26th November until 23rd June. Harvest regularly to encourage more production. If frost threatens, pick green tomatoes and ripen indoors on a windowsill.

Companion Plants

Plants that grow well (or poorly) with Tomato

Why Companion Planting Matters

Companion planting can help deter pests, improve pollination, enhance growth, and maximize garden space. Some plants release chemicals that repel pests or attract beneficial insects, while others can improve soil quality or provide shade for sensitive plants.

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.