No sniggering at the back! 
If a fruit tree is labelled as 'self-sterile, requires a pollinator' is it ok to buy two of the same to pollinate each other? Or do you need another variety altogether? I'm particularly looking at Beurre Hardy pears.

If a fruit tree is labelled as 'self-sterile, requires a pollinator' is it ok to buy two of the same to pollinate each other? Or do you need another variety altogether? I'm particularly looking at Beurre Hardy pears.
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