Care of Spanish Brooms

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Things You'll Need

  • Shovel

  • Coarse sand

  • Pruning shears

Spanish broom, or Spartium junceum, is a perennial flowering shrub native to the Mediterranean basin. Like most Mediterranean plant species, Spanish broom is hardy and thrives under arid conditions with little supplemental water, sending up 6- to 12-foot-tall stalks topped with pea-like yellow flowers in summer. The most important aspect of Spanish broom care is proper planting since this will determine the overall vitality of the plant, but it is otherwise a very low maintenance species and requires only light pruning and watering once established.

Step 1

Select a suitable spot for planting Spanish broom. Look for a spot with full sun and excellent drainage, but do not worry about soil type since it is not a picky species. Avoid shaded areas since the shrub will become leggy and thin-looking.

Step 2

Dig a planting hole for the Spanish broom shrub measuring two to three times the volume of the original container. Line the bottom 2 inches of the hole with coarse sand to increase drainage. Settle the shrub in the hole and fill in around it.

Step 3

Water the Spanish broom plant deeply to approximately 4 inches immediately after planting. Water the shrub no more than 1 to 2 inches every 10 to 14 days after the initial watering. Avoid any supplemental water in moist, rainy climates or during periods of steady precipitation.

Step 4

Prune the Spanish broom shrub periodically during the flowering season. Remove the spent flower heads as they occur using a pair of sharp, sturdy pruning shears. Snip the stems straight across just above a pair of leaves to encourage a bushy shape in the plant.

Step 5

Hard prune the Spanish broom in late winter to control its size. Cut the stems to a uniform length using pruning shears. Remove no more than one-third of the old, woody growth when hard pruning the shrub to keep it from going into shock.