Growing in the UK

Hello there, im planning an outdoor grow and i was hoping for some advice, this isnt my first grow (got a good number of indoor grows under my belt) so dont worry about terminology.

I was planning on planting my seeds in mid May (apparently best time to plant in the UK, can anyone verify?) also, the field i plan to plant in is facing the sea, is this a problem? (i thought maybe sea winds could retard plant growth as sea winds are normally very cold, also is there any chance of the winds carrying trace levels of salt?) the field is actually not on sea level, its on top of a cliff that faces out to sea

I dont think tempreture will be as much of a problem as it is in other parts of England as the town i live in is famous for its palm trees, its called the 'riveara of England', although any advice would be apprieciated.

If you guys can think of any other advice i might need please dont hesitate to post, im planning on growing something that is mold resistant and can take quick weather changes, any ideas?

ye i'm also planning an outside grow in england, i suspect that the wind would carry a small amount of salt, i'm not sure what that would do to the growth, however there are good seeds that grow well in england, Skunk Red Hair, big bud also Purple Power to name just a few. let me know what seeds you go for as i'm still pondering which to grow, gotta buy em soon . good luck