First Grow Im Going To Do

Hey all, Im starting my first guerilla grow in somerset , uk and was wondering if anyone had any useful tips and advice, im currently struggling to find any decent outdoor uk strains been looking at seeds from RGSC and RQS anyone had any luck with these seedbanks. Ive got a good spot in mind etc but id like some good guidance from experienced growers as i do know its very much trial and error and thats the beauty of it ! TIA

I think it's a bit cold to be doing a guerilla grow at the moment, it's only 5 Celsius outside and there's hardly any sun