By Markpsmith
United States 
How do I prune a small standard weeping laburnum tree and when ?
22 Aug, 2014
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Best done in June, after it has flowered, or early summer, depending on how your seasons are. Otherwise, in winter, before mid January, though you may then lose next year's flowers. When you prune, clip off spent flowers and to the shape you want.
22 Aug, 2014