[tagwex]

I have spent the last few hours trying to collate a chart of all the veg varieties that I have sown. Knowing their sown dates I am trying to work out when I can harvest and hence work out when and where second crops will go. I have kept the original seed packets and used that as a starting point, I have also looked at various websites and books and it is very much loose in that all I can get is 20 to 26 weeks for example. Now I know that the vagaries of weather, seasons and time of sowing will affect the time I am looking for and it probably wont get any more accurate than that in some cases but I am just looking for an indication so as I can semi plan ahead. On top of that the wise old ones among you will know by experience when a plant is ready to be harvested but remember this is my second year so little experience.
So, do any of you have or know of a chart or website of some kind that can answer my queries please. Some of the seed packets were of no use at all for the info I am looking for.