Will regular nurseries (we have a Pennells near us) sell them? I have nver ever noticed any locally, used to buy them years ago from a table top ouside someone's house but we have moved hundreds of miles since and its a bit of a trek ;)
Nurseries, garden centres, Sunday markets, B&Q ;)
look at local car boot sales too, the one I visit there is someone selling all sorts of veggie seedlings and they look much healthier than those on offer at the garden centres around here.
Ask on your local Freecycle - most people sow too many seeds and are usually glad to give a few away (well I do anyway ;D)
Linda.
Local W.I market.
Our Allotment Plant Sale? If you are still struggling 3rd June Derby. Bit of a trek but we have lots of heritage varieties... you cna save your own seed from!
;D