Chalky / Alkaline / Clay / Heavy / Moist / Well Drained / Light / Sandy
Bulbing onions, Allium cepa, can be used all year round, either fresh from the garden or storage. Yellow, red and white-skinned varieties are available, with more or less pronounced flavour and keeping abilities. Varieties sown in spring (or earlier under glass) or grown from sets (small bulbs) are ready to harvest from late summer onwards and keep until the following spring. Seed or set varieties started in late summer or early autumn stay in the ground over winter and mature in early summer after stored onions are used up – these varieties only keep until the new year.
Onions grow best in a sunny site in rich but light soil, that's relatively free-draining. They'll tolerate a range of soils, as long as it's firm.
British-bred Allium cepa 'Red Arrow' is an early maturing variety, with rosy red skin and pinkish flesh. Bulbs show good resistance to bolting and can be stored for up to eight weeks after harvesting.
Plant calendar
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant
yes
yes
yes
Harvest
yes
yes
Allium ‘Red arrow’ and wildlife
Allium ‘Red arrow’ has no particular known value to wildlife in the UK.
