You too can grow giant veg – a triple world record holder tells us how it’s done
Growers of giant veg nationwide will be gathering at this year’s Canna UK National Giant Vegetables Championship to show off their mammoth marrows, colossal cabbages and outsized onions in the hope of setting world records.
Cornish farmer David Thomas holds three world titles – for the heaviest red cabbage, the heaviest cucumber and the heaviest parsnip – and is chasing the title for the heaviest green cabbage at this year’s Malvern Autumn Show, where the championship is held.
He has to harvest his giant cabbages using a very sharp saw to cut the stump and a mini digger to winch the cabbage out. He often gets his neighbours to help him. His cabbage fills up his truck and when he grew pumpkins, he needed a trailer to transport them.
Some giant veg prove pretty inedible once they reach their maximum size – the longest runner beans are stringy, weighty cucumbers go bitter and the heaviest parsnips are woody and tough. Other giant veg such as cabbage, leeks, tomatoes and onions are fine to eat.
Thomas says that with the right seed and the right advice, anyone can have a go at growing giant show vegetables.
“Go and speak to a top grower. Make sure they’re winning ,” he suggests. “Take what you’ve grown to the show – it doesn’t matter how big it is or how small it is – and you’ll get talking to people. You’ll never get criticised for having the smallest cucumber.”
He suggests the following guidelines to giant-veg novices.
1. Choose the right seed
Whichever variety of vegetable you are going to grow, you need the right genetics to grow something big, so research your seed carefully. Some can be purchased at garden centres, others are available from specialists.
Thomas suggests varieties such as the mooli radish April Cross, Picador parsnips, Red Intermediate carrots and Kondor potatoes. Go to a specialist grower for onions.
“For things like pumpkins, marrows and cucumbers, go to someone who’s winning and ask them for some seed,” he advises. “Some growers might be covetous but most aren’t.”
There’s a lot of giant growing information available through websites such as giantveg.co.uk, growing forums and organisations like the European Giant Vegetable Growers Association (egvga.eu/).
2. Give yourself plenty of space
“The giant green cabbages I grow are spaced out 8ft each way,” says Thomas. “They span around 6ft which gives you a bit of space to walk around them and check them.
“If you’re going to grow a decent pumpkin, you’ll need 1,000 square feet of ground. But with parsnips, carrots and onions, you don’t need so much ground. A parsnip will take around 3ft.”
3. Check your soil
Some grow their veg in raised beds and barrels of compost, others going for records for the longest veg such as carrots and parsnips will grow them down gutter pipes placed diagonally in the ground and some grow to around 30ft in length.
“Add plenty of well rotted farmyard manure or compost to the soil before you start. A lot of people use green manure – council depots compost garden waste which you can buy to enrich your soil.”
“Every soil is different,” he continues. “If you’ve a really heavy clay, the more organic matter you can add, the better.”
4. Check sowing dates
Sowing dates will depend on the veg grown. Giant greenhouse cucumbers can be sown in May, while Thomas sows his cabbages in November and overwinters them in a frost-free greenhouse to plant out in the spring. He sows pumpkin seeds on April 1.
5. Watering regime
Giant veg need to be watered regularly and are not as tolerant of sporadic watering as normal-sized veg. They need to be kept moist but not waterlogged and you need to water them deeply to get to the roots. Many growers use drip irrigation systems on a timer which compensate for rain.
Be aware that different veg need different fertilisers. Plants grown for the fruit, such as tomatoes and pumpkins, will need fertilisers high in potassium and phosphorous, while leafy veg will need a higher nitrogen mix.
7. Prop up your veg
Giant cucumbers should be grown up a single stem, taking out the sideshoots so you just have one cucumber per plant.
A stake in the ground, with strong nylon string attached to a pole above, will allow for the cucumber to grow vertically. Cucumbers need to be wound around the string.
Thomas supports the fruits with some fleece tied around the middle of the cucumber as it becomes heavier, attached to string which is secured vertically to a frame above. The stem itself won’t hold the weight of the cucumber.
He has square steel frames to support his cabbages, which sit on top of the frame, taking the weight off the stump.
8. Maintain the crops
“Keep your crops weed and pest-free. Some crops, including pumpkins and marrows, don’t like too much wind if you grow them outside. They may need a windbreak around them. Some things are grown inside in tunnels, with automatic watering systems underneath them.”
Malvern Autumn Show takes place on September 29-30. For details go to malvernautumn.co.uk
The Press Association
Latest posts by The Press Association (see all)
- 10 blooming good ways to make savings in the garden this summer - July 19, 2019
- As the Grand Canyon turns 100 – a brief history of the world’s most famous rock formation - July 17, 2019
- Dame Helen Mirren: End of universal TV licence for over-75s is heartbreaking - July 17, 2019
- Step away from the hosepipe: 6 tips to help your garden thrive through a dry summer - July 16, 2019
- Holiday page-turners: 10 of the best scorching summer reads - July 16, 2019
Leave a Comment!
Community Terms & Conditions
These content standards apply to any and all material which you contribute to our site (contributions), and to any interactive services associated with it.
You must comply with the spirit of the following standards as well as the letter. The standards apply to each part of any contribution as well as to its whole.
be accurate (where they state facts); be genuinely held (where they state opinions); and comply with applicable law in the UK and in any country from which they are posted.
Contributions must not:
contain any material which is defamatory of any person; or contain any material which is obscene, offensive, hateful or inflammatory; or promote sexually explicit material; or promote violence; promote discrimination based on race, sex, religion, nationality, disability, sexual orientation or age; or infringe any copyright, database right or trade mark of any other person; or be likely to deceive any person; or be made in breach of any legal duty owed to a third party, such as a contractual duty or a duty of confidence; or promote any illegal activity; or be threatening, abuse or invade another’s privacy, or cause annoyance, inconvenience or needless anxiety; or be likely to harass, upset, embarrass, alarm or annoy any other person; or be used to impersonate any person, or to misrepresent your identity or affiliation with any person; or give the impression that they emanate from us, if this is not the case; or advocate, promote or assist any unlawful act such as (by way of example only) copyright infringement or computer misuse.
Nurturing a safe environment
Our Silversurfers community is designed to foster friendships, based on trust, honesty, integrity and loyalty and is underpinned by these values.
We don't tolerate swearing, and reserve the right to remove any posts which we feel may offend others... let's keep it friendly!