You will have to wait until April or May before planting out. I would start some seeds in January sex them and then clone them in March-April ready for planting out in early may when the last frost has gone, indeed this is my plan for next year.
Try these strains in the UK or Ireland: Passion #1, Orange bud, Easy Sativa, Early Durban. Anything that is CERTAIN to finish round the end of September or early Oct autos are ok but usually have a small yield but are handy if you NEED an early season smoke.
Dont take the seedbanks word regarding finishing times. Check with the breeder then look for grow reports that confirm the finishing time.
Start plants now and they are doomed to FAIL outside!!
Good luck