I've got raspberries and currants right next to each other. The only problem I get is stray raspberry plants in the currants that need to be moved or pulled out. I wouldn't put strawberries in the same area as they would get choked out pretty quickly. Also raspberries and strawberries like more scidic conditions than saskatoons.

My saskatoons are near my strawberries (but not right next to eachother).

I've never had a problem with any of them (other than what I mentioned above)

Are you really in zone 1? Wow!

~Chills

Ya I'm really zone one, so why in the world are you called Chills! LOL! Snowed here this morning :^)

Thanks for the input. I hadn't thought about the acidity differences. Our soil is about 6.0 to 6.5 naturally, but sasks, straws and rasberries all grow wild around here. I think there were blueberries and cranberries growing wild right where the garden is...so I'm thinking it's more on the acidic side.
Would the sasks enjoy some lime added once in awhile then?

I've got some (saskatoons) growing in peat-y soil right along by my blueberries (ph about 5.5-6.0)
They look just as good as those I have growing in sweeter soil in another area of my yard. I'd pass on the lime, unless the plants seem to be having problems (discoloration or some other problem).

~Chills

I wouldn't try to raise the pH much if any. I purchased a flowering almond some years ago in bloom in a large pot, planted it, and years later after much winter kill, found I have a saskatoon (great) and a small dogwood (nice color in winter, unnoticeable in summer) that tends to winterkill each year. The Saskatoon, after about 10 years, is still about 3 feet tall and has berries every year except last when it didn't bloom (ongoing drought). Our soil runs close to 8 on the pH scale, and it is planted in soil on gravel with a pretty healthy lime layer about 18" down with nearby underground drains. Berries are great, birds get nearly all of them before I do. Those I've seen growing wild in southern Wyo. and the Black Hills of So. Dak. have been in moister areas along streams where the soil has a fairly high organic content along streams and I would suspect would be a lower pH than I have, and they were as big as the ones I have seen near Saskatoon, Sask. Therefore, I think my dry, gravelly, high pH soil has stunted the one I have and you would be better with a more neutral or slightly acidic soil.

Thanks for the thoughts.

Beeone, the sasks here grow in very well drained soil, often on steep slopes. Here, they don't get big juicy berries like they do on the prairies though (hence the desire for some cultivated types). I'm not really sure why, and you never see them on the flats or streamsides. Interesting, must be some different wild varieties. I think most of the soil around here would be no higher than neutral, but likely slightly acidic. It would be interesting to know what it is where they grow so well on the prairies.