How to grow your best-ever crop of tomatoes

Choose your favourite cultivars: I eat 'Sungold' F1 like sweeties, they ripen early under cover, 'Ildi' is a good bush alternative for outside. Beef tomatoes are so impressive and tasty; 'Super Marmande' F1 gets my vote and I grow 'Crimson Crush' outside where it’s so good at resisting the dreaded blight. Watch my guide to sowing tomato seeds, to ensure yours get off to the best possible start. Then check out my six top tips for growing tomatoes.

Six top tips for growing tomatoes:

Pick varieties carefully

Choose blight-resistant varieties like 'Crimson Crush' and 'Mountain Magic' if like me your veg patch is on a site surrounded by trees where the air is static and humidity can rise after summer showers. I also peg a fleece curtain inside the greenhouse door to stop the spores drifting inside.

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Use warm water

Sow seeds 3cm apart onto a pot of firmed damp compost. I use warm water to soak the compost; it saves the propagator having to warm it up. Cover the seeds with a thin layer of compost and put them somewhere warm and light to germinate. At 20°C, I find they take about 10 days.

• How to sow tomato seeds

Give them some space

I prick them out into individual pots a fortnight after germination. Use potting compost and drop both roots and stems right down into the hole so the leaves sit just above the surface. The young stems root easily to make a really strong plant. Space them out to encourage maximum growth.

• How to pot on tomato seedlings

Feed after flowers appear

Plant tomatoes into a nutritious compost or into soil with extra manure. They’re hungry feeders but won’t need their weekly dose of liquid feed until the first flower trusses are set. I use my homemade comfrey feed for this but any feed for fruit and flowers will make all the difference.

Stay on top of sideshoots

My crops are mostly grown on single stems up strings or poles so as soon as they’re planted I’m onto the sideshoot removal to keep them straight. Pinch out the shoots growing in the axil between the main stem and leaf. There will be loads, tying and sideshooting is a weekly job right through the summer.

Ripen as many as possible

Once your tomatoes are ripening, reduce the watering a little to concentrate the flavour, it makes all the difference, especially towards the end of the season. Bring green fruit in when it gets cold and hang them up on the truss or, even faster, put them in a paper bag with a ripe banana.

• How to ripen late tomatoes

More tomato advice:

• Seven things you need to know about growing tomatoes
• Time-saving tips for growing tomatoes
• How to save tomato seed