Brooms are a group of shrubs in the bean family. Common broom species include Spanish broom (Spartium junceum) and Scotch, or common, broom (Cytisus scoparius). The Scotch broom is larger than the Spanish broom and has arching stems. Both species bloom yellow flowers. The plant grows so quickly that in some parts of the world, it is classified as an invasive species. Brooms are easy to care for, requiring little water and no fertiliser. Prune the broom bush after it finishes flowering in late summer.
Go through the bush removing dead and damaged wood, especially that towards the centre of the bush. Cut these canes back to their points of origin.
Remove branches or stems that cross over others and any that protrude from the shape you prefer for the bush.
Pinch 1.25 cm (1/2 inch) from the tips of new growth when it reaches 5 cm (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 stems.
To discourage pests and disease, bag and dispose of all pruning debris.
Tips and warnings
- To discourage pests and disease, bag and dispose of all pruning debris.
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