Sweet purple by Paradise seeds?

Alright, so I know that this strain thrives outdoors, and gets very purple.

There is only one thing I want to know before purchasing femmed seeds of this strain.

Will ALL my plants be purple? I will be growing outdoors and im in Southern Ontario so near end harvest it will be getting pretty cold.

I am asking this because I know purple widow is always purple.. the only problem is no one sells feminized purple widow seeds.

So, will like 1 in 3 plants be purple? 1 in 4? 3 in 4? Or should all my plants end up purple?

Also, could I except half pound of dry bud per plant, if I veg indoors for 2-3 weeks and plant outdoors in early early may?

Thanks!