- Scotch broom is suitable for a variety of climate zones, and generally grows best in full sun situations in U.S. Department of Agriculture plant hardiness zones 5 to 8. Some cultivars are only hardy to Zone 6. Scotch broom is considered invasive in the Northwestern United States.
- Scotch broom is tolerant of a range of conditions, and it will grow in poor, well draining soils. The drought-tolerant plant can live in dry, slightly alkaline soils to slightly acidic soils.
- Regular pruning helps give the plant a healthy, fresh appearance and promotes new flower growth. Check the plant's foliage occasionally for common Scotch broom pests such as caterpillars and spider mites.
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