Burmese Sour Tomato

£2.80

22 in stock

Days
Hours
Minutes
Seconds

Burmese Sour is a heritage variety native to Myanmar where it is traditionally cultivated, and its distinctive flavour has been developed over many years to suit the local cuisine. These strong growing large and deeply ribbed bright red tomatoes have a really interesting tangy flavour when cooked with spices and add a really bright quality to the finished dishes. The tangy quality also works well in salads. The tomatoes have an irregular, slightly flattened and curvy shape and make a fantastic change from the sweet varieties commonly available.

It is a vigorous indeterminate vine which is best grown as a cordon under cover. 

Because of our cool, short summers, all tomatoes need starting early, so they’ll have a chance to ripen before the weather gets too cold for them.  Sow them in modules or a seed tray with some seed compost any time between mid Feb and the end of March.  Keep them in a propagator between 18 to 22 degrees, then, once germinated (usually within 14 days), move them somewhere nice and light to stop them getting thin and leggy, but still indoors where it’s warm.  Pot them on when they get a bit bigger, then plant them out once the weather’s warmer – normally at the end of April, but this will depend on local conditions, and whether they’re going in a greenhouse, or outside.  Dig in plenty of organic matter initially, and feed and water regularly throughout the season.

Approx. 20 seeds per packet.

Botanical name: Solanum lycopersicum

Seed Story:
Our original seed was kindly provided by Adam Alexander, “The Seed Detective”. Adam found it in a market in Yangon and was given its name by his Burmese colleague who said it was thus named because of its place in sour cuisine (as in sweet and sour!).

Growing instructions – Tomatoes

Because of our cool, short summers, all tomatoes need starting early, so they’ll have a chance to ripen before the weather gets too cold for them.  Sow them in modules or a seed tray with some seed compost any time between mid Feb and the end of March.  Keep them in a propagator between 18 to 22 degrees, then, once germinated (usually within 14 days), move them somewhere nice and light to stop them getting thin and leggy, but still indoors where it’s warm.  Pot them on when they get a bit bigger, then plant them out once the weather’s warmer – normally at the end of April, but this will depend on local conditions, and whether they’re going in a greenhouse, or outside.  Dig in plenty of organic matter initially, and feed and water regularly throughout the season.

Maintaining your plants will then depend on the type of tomato they are…

Vine / Indeterminate tomatoes grow tall (over 8ft if you let them) and skinny, so will need strong supports – either a very tall stake, or string.  We attach ours to an overhead line with string, and wind it round the plant as it grows.  They will require their side shoots ‘pinching out’ regularly throughout the season, concentrating the growth within the central, fruit producing stem, and you can also pinch out the top if they get too tall, which will also result in the fruit ripening quicker.  Fruit trusses are generally long, and the tomatoes will ripen slowly over the season, resulting in a long cropping period and a heavier crop for the amount of space the plant takes up.

Bush / Determinate tomatoes only grow to about 3-4ft tall, but are wider and bushier.  They may not require supporting, unless heavily laden with fruit, nor should you pinch out any ‘side-shoots’, so are far less fuss.  Smaller varieties can even be grown in hanging baskets and left to trail over the sides.  Their side shoots are quite short, so they will fruit quicker, resulting in most of your tomatoes ripening in a much smaller space of time.


Seed grown using agroecological principles. We are licenced to sell seed and issue plant passports. Reg number: 7710.

This reliable oak leaved lettuce can be grown from early spring to late summer to provide a succession of crisp…

3 in stock

£2.50

Sorry, now out of stock for this year! More coming autumn 2026. Our growers put their heads together recently and…

Out of stock

£18.00

Roi de Carouby

Roi de Carouby snow pea is a French heritage variety of mange tout peas, which produces huge tasty and crispy…

8 in stock

£2.60

Whippersnapper tomato

This is an early maturing determinate bush tomato that produces slightly pinkish tomatoes with a good, sweet / acid balance…

14 in stock

£2.50

Valdor Lettuce

Valdor is possibly the best winter lettuce forming a lovely butterhead lettuce of excellent taste and texture. It overwinters well…

10 in stock

£2.50

This gorgeous tomato tastes like a tomato should – delicately sweet with a slight smoky hint. It is a multi-coloured…

19 in stock

£2.50

This gorgeous tomato tastes like a tomato should – delicately sweet with a slight smoky hint. It is a multi-coloured…

19 in stock

£2.50

A delicious cherry tomato in deep red and black hues with a sweet, rich flavour. Approx. 25 seeds per pack….

Out of stock

£2.50

Darby Striped

Thin skinned with excellent flavour, Darby Striped is an early/mid season red-yellow striped tomato. Produces generous trusses of mid-sized, round…

13 in stock

£2.50

Cherry tomato producing very long trusses of exceptionally sweet and tangy fruit. The fruit are on the small side, wonderfully…

36 in stock

£2.50

This tomato really is the best ever beef steak tomato! The taste is incredible and they have few seeds around…

44 in stock

£2.50

This hugely floriferous tomato grows best when given plenty of space for the trusses to grow. Plant at least 75cm…

36 in stock

£2.80