Growing Blueberries near 2 or 3 ft from Raspberries, OK?

There are two blueberry plants like half surrounded by raspberries, but the nearest one is a few feet away.  For instance, are the acidic soil preference of Blueberries the same for Raspberries?  I sorta doubt it, cuz i heard from a reasonably authoritative source that mulching raspberries as you would blueberries leads to armillery root disease, or however it's spelt. I should probably relocate the two blueberries, but how to acidify the soil ph..... Or better still, what to look for as an indicator of adequately acidic soil fit to make blueberries thrive.  Thanks either way, but especially if i can avoid doing all the work of relocation, given all else i've too due. OgreNick

Nick,

Even without the acidity issues, I think 3 feet is awfully close.  Both plants are going to spread outwards and I imagine that 3 feet will close up very quickly.

Just my thoughts,

Eric

I don't think the raspberries will care about the pH much they will certainly manage with the same as blueberries, but I agree that 3ft is too close, raspberries like to spread and fishing them out of blueberries every year will get old fast.

Could you move the raspberries instead of the blueberries? Raspberry canes can really grow like wild fire, and I think would take transplanting better, rebound and regrow sooner and maybe better than transplanting the blueberry bushes.

Hi, it's really a raspberry patch with a few blueberry bushes. So will move the blueberries instead.   Then I mulched the raspberries with sawdust before learning they don't like that cuz it makes them vulnerable to armillery disease. Dang, you can tell I haven't looked it up or i'd know how to spell it. Thankfully it's cuz i'm busy. Much thanks for the replies. Will weed the raspberries, removing the mulch and move the mulch to where the blueberries are gonna be planted to adjust the ph justly.  big TY to all here.