If you want to grow your own vegetables from seeds is essential to sow the seeds at the right time of the year to ensure healthy plants and a good crop. Most of the seeds packages have the sowing instructions on the back but the weather might not be proper to sow the seeds when they are supposed to. You can still sow the seeds indoor, under cover, in a greenhouse, if you are lucky enough to have one, or on a sunny windowsill. But not all the vegetables are suitable to be sown indoor and then transplanted outdoor. Some of them just need to be sown directly outside, in their final position, so you might have to wait until the weather is proper for sowing.
Here is a list with the most common grown vegetables and the right time to sow and plant them, if the weather allow it, month by month. Don't sow or plant out seedlings if the weather is bad, the soil is too cold or too wet to be dug, just because it is time to do it. Wait until the weather allow you to work your garden and don't worry if you plant you vegetables a week or two later, they will catch up. Just make sure you will offer them proper growing conditions, according to their necessities.
January
Sow indoors: Broad Bean, French Bean, Cauliflower, Leek, Lettuce, Onion, Pea, Indoor Tomato
February
Sow indoors: Globe Artichoke, Aubergine, Broad Bean, French Bean, Summer Cabbage, Cauliflower, Leek, Lettuce, Pea, Pepper, Indoor Tomato
Sow outdoors: Broad Bean, Brussels sprouts, Carrot
Plant out seedlings: Indoor Tomato
March
Sow indoors: Globe Artichoke, Aubergine, Summer Cabbage, Celeriac, Celery, Cucumber, Lettuce, Pepper, Indoor Tomato, Outdoor Tomato
Sow outdoors: Broad Bean, Beetroot, Broccoli, Summer Cabbage, Winter Cabbage, Carrot, Leek, Lettuce, Onion, Parsnip, Pea, Radish, Spinach, Turnip
Plant tubers, sets or offsets: Jerusalem Artichoke, Potato
Plant out seedlings: Indoor Tomato, Cauliflower
April
Sow indoors: Runner Bean, Celery, Cucumber, Marrow, Sweet Corn, Outdoor Tomato
Sow outdoors: Beetroot, Broccoli, Summer Cabbage, Winter Cabbage, Chinese Cabbage, Carrot, Cauliflower, Chicory, Kale, Kohlrabi, Leek, Lettuce, Parsnip, Pea, Radish, Spinach, Turnip
Plant tubers, sets or offsets: Globe Artichoke, Jerusalem Artichoke, Potato
Plant out seedlings: Aubergine, Broad Bean, French Bean, Brussels sprouts, Cauliflower, Onion, Indoor Tomato
May
Sow indoors: Runner Bean
Sow outdoors: French Bean, Runner Bean, Beetroot, Broccoli, Summer Cabbage, Winter Cabbage, Chinese Cabbage, Carrot, Cauliflower, Chicory, Cucumber, Kale, Kohlrabi, Lettuce, Marrow, Parsnip, Pea, Radish, Spinach, Swede, Sweet Corn, Turnip
Plant tubers, sets or offsets: Jerusalem Artichoke, Potato
Plant out seedlings: Globe Artichoke, Aubergine, Brussels sprouts, Summer Cabbage, Winter Cabbage, Celeriac, Celery, Leek, Pepper, Indoor Tomato, Outdoor Tomato
June
Sow outdoors: French Bean, Runner Bean, Beetroot, Spring Cabbage, Carrot, Kohlrabi, Lettuce, Pea, Radish, Spinach, Swede, Turnip
Plant out seedlings: Runner Bean, Broccoli, Brussels sprouts, Summer Cabbage, Winter Cabbage, Cauliflower, Celeriac, Celery, Kale, Leek, Marrow, Sweet Corn, Outdoor Tomato
July
Sow indoors: Lettuce
Sow outdoors: Beetroot, Spring Cabbage, Chinese Cabbage, Kohlrabi, Lettuce, Onion, Radish, Spinach, Turnip
Plant out seedlings: Runner Bean, Broccoli, Summer Cabbage, Kale
August
Sow indoors: Lettuce
Sow outdoors: Spring Cabbage, Chinese Cabbage, Onion, Radish, Turnip
Plant out seedlings: Kale
September
Sow outdoors: Onion
Plant out seedlings: Spring Cabbage
October
Sow indoors: Lettuce
Sow outdoors: Pea
Plant out seedlings: Spring Cabbage
November
Sow outdoors: Broad Bean
December
Sow indoors: Onion
