OUTDOOR GROWING QUESTIONs!!!!

hi all, just wondering when (what month) is the best time to plant seeds in the u.k and when to harvest roughly? also i heard a rumour growers were planting clones (to ensure females and quality) all around the uk next to motorways or secluded private plots of land, in forest etc. i mean hypothectical speakig if you had 60 clones planted them (not all together) and olny 30 where harvested because the other 30 were stolen or discovered you still be a very happy man, but is this style of growing actually being done?. obvilously people are growing outside (in gardens) but is really possible to just abandon you beloved plants and let mother nature do her thing, what about pests? and english climate? one last question is 500gr dried per plant (outdoor) achievable?:hippy:

alot of questions for a newbie would really appreciate any help or comments

thanxs in advance
morning glory:rastasmoke:

im not sure if i would plant next to a motorway, not soley on the problem of the plant being highly visible in late summer but more so on the fumes from the vehicles. I think in this climate 500g per plant could be acheived if you got the right strain and a good spot and just basically did everything to perfection, however i think most people end up with less when growing outside in uk. As for pests its probably inevitable that you will run into problems but if you have alot of plants in a few diff locations some may suffer from pests but i geuss you could let nature take its course and still end up with a harvest at the end, however if it was me id definatly try to treat bug probs.