container grown blueberries

My 3 three old "Sunshine blue" blueberry is currently full of flowers. Does it need a mate for pollination? Last year it produced a few flowers but no berries developed. It seems to be quite hardy. It spent the last 2 winters outdoors (DC suburbs)

I will be moving to an apartment in northernwestern VA next month. The balcony is SW facing. Can I dare hope for a few berries?

Thanks for any info regarding container grown blueberries.

This nursery say Sunshine Blue is self-pollinating.

http://www.fallcreeknursery.com/nursery/v-shighbush.html
http://www.davewilson.com/homegrown/promotion/blueberries.html

This last one is from Virginia's extension service:
http://www.ext.vt.edu/pubs/envirohort/426-840/426-840.html

Thank you! thank you!
The 3 hyperlinks you provided have given more information than I thought I needed. Anne