How to Grow Tomatoes Late in the Season

Growing tomatoes late in the season is completely possible with the right approach. Whether summer arrived late, plants were started behind schedule, or you want to extend your harvest into autumn, careful management can still deliver a worthwhile crop. Late-season tomato growing is all about protecting plants, speeding up ripening, and focusing energy on fruit rather than foliage.

⭐ Recommended Products — Tomatoes & Growing Essentials

• Tomato Seed Collection (Garden & Greenhouse Varieties)
A mix of popular tomato seeds — including salad and beefsteak types — perfect for sowing indoors early and planting out when warm.
👉 Click here to see top options

• Tomato Plants (Ready-Grown)
Save time with healthy young tomato plants — excellent if you prefer planting established plants rather than starting from seed.
👉 Click here to see top options

• Tomato Support Cages & Stakes
Helps keep vines upright, improving air circulation and reducing disease — essential for healthy growth and easier harvesting.
👉 Click here to see top options

• Tomato Feed & Fertiliser
Formulated with high potassium to support strong flowering and fruiting — use regularly through the growing season for bigger, juicier tomatoes.
👉 Click here to see top options

• Tomato Grow Bags / Containers
Ideal for patios, balconies, or greenhouse growing — provides good drainage and space for roots to develop big, productive plants.
👉 Click here to see top options

Can Tomatoes Still Grow Late in the Season?

Yes — tomato plants will continue to grow and produce fruit as long as temperatures stay mild and frost is avoided. Tomatoes are sensitive to cold, so success late in the season depends on making the most of remaining warmth and daylight.

Late-season growing works best when:

• Plants already have flowers or small fruits forming
• Daytime temperatures stay above 15°C
• Nights remain above 10°C
• Plants are protected from cold winds and rain

Even if fruits don’t fully ripen outdoors, many can still be harvested green and ripened indoors.

Choose the Right Tomato Types

Not all tomatoes perform equally well late in the season.

Best choices for late-season growing include:

• Cherry and small-fruited varieties
• Early-maturing tomatoes
• Determinate or bush varieties
• Cold-tolerant or blight-resistant types

Smaller fruits ripen faster and are far more reliable as daylight hours shorten.

Stop New Growth to Focus on Ripening

One of the most important late-season techniques is limiting new growth so the plant concentrates on existing fruit.

Pinch Out Growing Tips

• Remove the main growing tip of cordon tomatoes
• Stop new side shoots from forming
• Allow energy to go into ripening existing tomatoes

This should be done once you’re confident no new fruit will have time to mature.

Remove Excess Flowers

• Remove late flowers that won’t have time to fruit
• Thin overcrowded fruit clusters if needed

This prevents the plant wasting energy on fruit that won’t ripen.

Reduce Feeding and Adjust Watering

Late in the season, plants need less input.

Feeding:

• Stop high-nitrogen feeds
• Continue light potassium-rich feeding only if fruits are still swelling
• Stop feeding entirely once most fruit is full-sized

Watering:

• Reduce watering gradually as fruits begin to ripen
• Avoid waterlogged soil, which slows ripening
• Never let plants dry out completely in hot weather

Correct watering helps prevent splitting and improves flavour.

Improve Light and Airflow

Maximising light exposure speeds up ripening.

• Remove excess leaves shading fruit trusses
• Clear foliage touching the ground
• Improve airflow to reduce disease risk

Do not strip plants bare — remove only what blocks light or airflow.

Protect Tomatoes from Cold and Rain

Late-season weather can be unpredictable, especially in the UK.

Outdoor plants:

• Use fleece or cloches on cold nights
• Shelter plants from heavy rain
• Move container plants to sunny, sheltered spots

Greenhouse and polytunnel plants:

• Close doors and vents earlier in the evening
• Vent during the day to prevent damp
• Use thermal mass (water containers) to retain warmth

Even a small temperature increase can make a big difference late on.

Speed Up Ripening

If temperatures drop but fruits remain green, there are ways to encourage ripening.

• Stop watering entirely for in-ground plants (weather permitting)
• Gently lift roots to stress the plant slightly
• Lay outdoor plants on straw or boards if frost-free
• Pick mature green tomatoes and ripen indoors

Tomatoes ripen well indoors when kept warm and dry.

Watch for Disease Closely

Late-season tomatoes are more vulnerable to disease due to damp conditions.

• Remove any diseased leaves immediately
• Avoid wetting foliage when watering
• Harvest ripe fruit promptly

Early action can save the rest of your crop.

Harvesting Late-Season Tomatoes

• Pick fruits as soon as they begin to colour
• Harvest before the first frost
• Green tomatoes can be ripened indoors or used in cooking

Leaving fruit too long on the plant late in the season increases the risk of loss.

Final Thoughts

Growing tomatoes late in the season is about working with the plant, not against it. By stopping new growth, improving light, reducing feeding, and protecting plants from cold, you can still enjoy a productive harvest even as summer fades.

Focus on ripening what you already have rather than chasing new fruit, and you’ll make the most of every tomato before the season ends.