If you have now 6 frames bees, it is not possible that from this 2 weeks ahead it is wise to give another box.
When bees start to raise new workers it takes 1-1,5 month before tha volume of bees start to grow. with small colony 6 frames it surely takes 1,5 -2 months. After that box is full of new bees and wintered bees have almost all dead.
Pollen frames should be immedeately aside brood area and on edges sugar/honey. If hive has too much honey frames it is usefull take vain frames away.
When brooding starts with it full force, first number of nurser bees limits the volume of brood area. It takes 4 weeks and huge number of new nurser bees start to take care of larvae. After that the temperature of hive limits the growth of colony. An the limit factor is rainy weeks and night temperature. People like to look best days.
(Mapple Ridge is at same latitude like south peak of England of north France. Perhaps you have some palm trees in gardens like in London. :) You surely has cold night in spring. )
When are your apple trees in bloom?
Finsky, thank you, very good. You have much information that I need to re-read because sometimes I don't quite understand what you say, but I am trying hard to work with your information and understand it. It is good stuff.
I will not give the second chamber as you said, yes, that makes good sense. I will give the frames to the bottom box if it is necessary for extra food, but I think that they have enough for a fair long time, considering the small size.
There are no palm trees in my immediate vicinity, nor even very close by. On an island called Salt Spring, which is further southward and westward by a little bit, they have a more temperate zone, they have palm trees and such. The apple trees bloom: I will have to look at records and see. I do not know right off the top of my head. We do have cold night in spring.
Our last free frost day is usually judged to be about the end of April. We can be assured that the tender annual plants will not freeze and that is when gardeners can feel that it is a safe time to begin to set their tender plants outside from inside their greenhouse, homes, nurseries where they have bought plants, and so on. Sometimes we do not even get any frost in April. April can be very mild. Great day, Finsky, I love your comments. Cindi