Assertion: valley forge elm | /r/CapableOf | remove competing leaders
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Source sentences:
text: The corollary seems clear: When a Valley Forge elm is consistently pruned to a straight, central leader up to at least 15 (or preferably 20) feet above the ground, regularly cutting back or removing any competing leaders or straggling side branches up to that height, it is apparent to me that the tree henceforth will tend to grow to a desirable shape on its own, and without being especially prone to splitting or leaning, though it may benefit from occasional trimming around the edges of the crown for a few more years to keep the tree shapely.