help needed to grow blueberries in Athens, Greece

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Help needed,  I purchased 4 blueberry bareroot plants.  The only information on the box is that it is Mirtillo  Arbusti da Frutto Extra.  Directions are in Italian and no company name is visable.  I understand that they need acid soil and have purchased some so that I could plant these in a large pot, tub size.  I thought I could put two into a pot.  I live in Greece, above Athens where we have cool nights and hot dry summer days. Does anyone know how large these will get?  Also do I need a different one as a polinator?  I read in Sunset magazines that there are blueberries developed for California climates and mine here is like zone 8 or 9.  You many ask why go through all the bother and my answer is I come from Michigan and really like blueberries.

 

Thanks in advance.

 

Lorraine Schmiege