On 30 Jun, 05:57, Crivens wrote:
In the first garden centre I looked, there were literally hundreds of
packets of seeds with no visible information on the front regarding sowing
dates and harvesting dates - this was buried in text on the back of the
packets.

David,
I have had the same problem but I now use this site (http://www.the-
gardeners-calendar.co.uk)to help me plan the planting schedules. If
you click on the vegetable you are interested in, you are taken to a
page with different varieties and planting schedules. Not everything
is covered, but it has been getting better over the past few months.
I hope it helps,
Crivens

Sorry link broke

http://www.the-gardeners-calendar.co.uk