Vegetable Seeds to Sow in August
Posted on 02. Aug, 2009 by Tracey in Grow Veg
August is nearly the end of the summer (where did the time go?) and is the month to start sowing vegetables for autumn and spring next year. There is still plenty to sow from Chinese to baby vegetables and winter versions of the summer classic vegetables. Take your pick from the contenders below.
1. Winter Lettuce
Winter lettuce is ideal if you want to keep picking lettuce throughout the autumn and winter. Some varieties are very winter hardy and some require frost protection in the form of cloches in September.
As lettuce is a cool weather crop, high temperatures may cause slow or no germination. Sow in the coolest part of the day and water well with cold water.
Sow Seeds: August and September
Harvest: October to April
Varieties to choose from:
- Winter Density – Semi cos type, slow to bolt in spring
- Rosetta – Butterhead type, great for greenhouse growing August to January.
- Valdor – old favorite with deep green leaves and is winter hardy.
- Winter Gem – a popular version of the summer little gem can now be sown Aug to Jan.
- Winter Marvel – a french variety which can be harvested from October onwards
2. Japanese Salad Winter Onions
Japanese salad onions have spring and winter varieties. The winter varieties can stand in the soil in cold conditions and withstand frost under a cloche.
Sow Seeds: June to October
Harvest: August to December
Varieties to choose from:
3. Florence Fennel
Florence fennel is a white bulbous Italian vegetable which is a dwarf version of the herb fennel. The vegetable provides an aniseed flavour in salads or can be braised or roasted.
Sow Seeds: July to Mid-August
Harvest: September to December
Varieties to Choose from:
- Colossal – good for autumn harvest, forms bulb well and less prone to bolting
- Romanesco – large succulent and tasty bulbs,
- Sirio – An italian variety with large bulbs on compact plants.
4. Chinese Cabbage
Chinese cabbage grows tall and has cylindrical heads. They crop in 1 to 2 months so are definitely worth sowing now to get some cabbage leaves before the winter sets in. Chinese cabbages can be cooked as normal cabbage or added to stirfrys. They like moisture so remember to water frequently as this will prevent them from bolting.
Sow Seeds: June to August
Harvest: August to November
Varieties To Choose from:
- Hilton Light green, medium size barrel head, crunchy taste,
- Granaat (organic) – medium green leaves and tall heads. Good for successional sowings.
- Green Rocket F1 – Quick grower, bright green leaves and long storage period.
- Richi F1 – Short oval heads, yellow hearted with dark outer leaves
5. Turnip (Maincrop)
Turnips are a quick and one of the easiest vegetable to grow. They come in a variety of colours: white, purple, yellow and purple. Both turnips and their turnip tops (green leaves) can be harvested and eaten. They hold their nutrients when cooked to give you a nutritious vegetable on your dinner plate. Harvest when they are the size of a golf ball.
Tips: Maincrop turnips need larger spacing when thinning the seedlings for a good root to develop and to prevent diseases like powdery mildew (between 8 – 12 inches apart). If you want baby turnips, space 3-6 inches apart. They also require watering in dry periods to prevent the skin from cracking.
Sow Seeds: Early Crops: April to July, Maincrop: July to August
Harvest: Early Crops: May to September, Maincrop: September to November
Maincrop Turnip Varieties:
- Armand – the Christmas turnip! purple and white variety, very good resistance to cold.
- Golden Ball – A yellow round variety which stores well.
- Model White – all round great variety for good taste.
- Giant Limousin – can reach up to 10 – 12 inches wide if left in the ground. Tender and white.
6. Baby Carrots
If you forgot to sow carrots last month, fear not, there’s still time to sow some fast cropping baby varieties so you can harvest before the winter sets in. So this is your last chance to sow some carrots this year! These can be sown in patio pots and in raised beds.
Sow Seeds: August
Harvest: October to November
Late Season Baby Carrot Varieties to choose from:
- Ideal – from Suttons speedy seeds range ready to harvest in 6 – 12 weeks.
- Giant Red – Quick growing carrot ideal for late summer sowings.
7. Baby Beetroot
This is your last chance to sow beetroots this year for a late baby crop for harvesting in autumn. These baby vegetables can be grown in patio pots or raised beds and crop in 6 – 12 weeks. Baby beetroots are usually the size of a golf ball.
Sow Seeds: August
Harvest: September to November
Baby Beetroot Varieties:
- Action F1 – good crops, golf ball sized, sweet and smooth skinned.
More Vegetable Seeds to Sow in August
- Radish – winter varieties (10 – 12 weeks)
- Spring Cabbage (for harvest next May)
- Winter Lettuce
- Pak Choi
- Swiss Chard
- Turnip
- Mustard Greens
- Rapini (Broccoli Raab)
- Quick heading calabrese (can be sown in greenhouse or unheated polytunnel)
- Endive
- Winter Type – Japanese Spring Onions
Other Posts in the Vegetable Seeds to Sow Series:
- Vegetables To Sow Indoors In February and March
- Vegetables To Sow Outdoors in February and March
- Vegetables To Sow in April
- Vegetable Seeds to Sow in May
- Vegetable Seeds to Sow in June
- Vegetable Seeds to Sow in July
- Vegetable Seeds to Sow in August
- Vegetable Seeds to Sow in September
- Vegetable Seeds to Sow in October
- Vegetable Seeds & Sets to Plant in November
- Winter Vegetable Growing Guides











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Christine
09. Aug, 2009
What a great site! Its very informational. I love my veggies. My garden failed this year because my cats decided to start using it as a … well, I am sure you get the pic. I will try again next year. Going to blogroll you.
Josephine
01. Jul, 2010
This website is full of useful information and I have enjoyed reading everything. I have an allotment and I will love to grow vegetables all the year round; even during the winter. I also enjoy eating what I grow because I think they taste better than those sold in shops..
Deborah
09. Aug, 2010
Simply the best “grow your own” blog out there for a beginner like me to follow!
THANKYOU X
Tracey
14. Aug, 2010
Hi Deborah,
Thanks for your lovely comment, I felt my cheeks go all red when I read it. I’m really glad it appeals to beginners, after all I was a beginner nearly 4 years ago and have written about all my successes and failures along the way. I’m still learning nearly 4 years on, as every season I grow something new. Growing your own veg is a great big adventure and I love every minute of it.
Thanks
Tracey
Elaine
08. Aug, 2011
A great blog, easy to follow. I live in Greece and just starting to grow my own on my balcony I hope I will be successful with the heat we have here. Any info. on what size of containers I should use for planting the August/September seeds, can I mix a few seeds in the pot, how many go in one pot. So many questions and I am going round and round in circles.:)
Pak Choi Red F1
“Carrot Autumn King 2
Swede Marian (love my neeps)
“Kale Seeds Redbor (want to try kale, it’s good for you! I will be juicing it.)
Kale Seeds Winterbor
Steph
11. Aug, 2011
Brilliant site, quite new to growing our own veg and have great success this summer and wanted to know what we could do in the winter. Found some useful information. thank you.
Tracey
18. Aug, 2011
Hi Elaine,
Thanks for your questions.
I would sow the Pak Choi and Carrots in troughs or window boxes and then add some Oriental Leaves like mustard, endive, rocket etc and even some winter lettuce or spinach leaves to go in the mix.
Kale Redbor and its green version Winterbor grow quite large so will need to be grown in a pot of at least 50cm in diameter, again you could plant oriental leaves around the edge whilst the kale grows in the middle to gain maximum growing space. Also there are dwarf varieties of Kale the most popular one is ‘Dwarf green curled’ and also if growing Kale, there’s one you must try growing for look and superb taste called ‘Nero di Toscana‘, it can be grown in a pot and has lovely crinkly dark green almost black leaves and tastes wonderful.
Swede have a long growing period and need to be kept well watered in hot and dry weather and they will need very large pots. Alternatives are baby turnips.
Thanks
Tracey