cheap suppliers of the following seeds...tu

[Sparkly]

..turnips, pak choy, winter radish and japanese onions? Also Leek seedlings

All of our local garden centres seem to be out of all of them

[Sparkly]

[Tee Gee]

Haven't looked but I would guess you would get most of them here; http://tinyurl.com/3djccv

[debster]

pak choi from dobies was either 95p or £1.25 no postage or packing

[allaboutliverpool]

Try your local Chinese supermarket, you get about 2 ounces of Pak Choi for little cost, all written in chinese, as well as other seeds cheap.

http://www.allaboutliverpool.com/allaboutallotments1_homepage