Jul 21, Pinch 1/2 inch from the tips of new growth when it reaches 2 inches in length. This prompts the broom to produce a new branch directly beneath the pinch portion, making the shrub bushier. Rejuvenate Scotch or Spanish broom by cutting or mowing it to the soil while it is dormant. It will rapidly grow back, producing new, strong shrubnotch.buzzg: Melrose MA. When to Prune Broom Broken or diseased branches can be pruned at any time but when pruning the size and shape the best time for this is at the end of May, after flowering.
If you do this in autumn or winter you will reduce the number of flowers your shrub produces the following shrubnotch.buzzg: Melrose MA. Nov 30, How to Prune a Scotch Broom Shrub. With its shrubby, full growth, drought-resistance and brilliant yellow, pealike flowers, scotch broom (Cytisus scoparius) sounds like a plant with plenty to Missing: Melrose MA. Best offers for your garden - shrubnotch.buzz to Prune a Broom Bush. Brooms are a group of shrubs in the bean famil Missing: Melrose MA.