This is a series named for parks or squares in London, England by Clyde Crockett of Indiana.

 
CultivarPlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonSourceRegistered
'Gordon Square'SmallYellow--Unknown--Crockett, Clyde--NR--
'Russell Square'MediumBlue/Green--Unknown--Crockett, Clyde--NR--
'Upper Woburn Place'Large---Unknown--Crockett, Clyde--NR--

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