Pruning Desert Shrubs in Tucson: Lantana, Oleander, Lavender, Bottlebrush

A Tucson gardener leaving for Seattle in mid-May and returning mid-September needed pruning guidance for lantana, oleander, lavender, and bottlebrush.

General Principle

These tough, heat-loving shrubs tolerate pruning almost any time, but fall (late September–October) is optimal—after peak bloom slows and before winter.

Plant-Specific Guidance

Lantana (Lantana camara)

• Prune hard in late fall or early spring (to 6–12") to rejuvenate.
• Light shaping anytime. Remove spent flowers to encourage rebloom.

Oleander (Nerium oleander)

• Prune after flowering (fall) to control size. Can be cut back severely.
• Wear gloves—all parts are toxic. Bag and trash clippings; don't compost or burn.

Lavender (Lavandula spp.)

• Prune in early fall or early spring. Cut back by 1/3 to 1/2, shaping into a mound.
• Never cut into old, woody stems without green growth—they won't resprout.
• Harvest flowers in summer; this counts as light pruning.

Bottlebrush (Callistemon spp.)

• Prune after spring/early summer bloom. Tip-prune to shape; remove crossing branches.
• Can tolerate harder pruning in fall if needed for size control.

Schedule for This Gardener

Since you return mid-September, prune immediately upon return. This aligns perfectly with the fall window. Remove dead wood, shape lightly, and clean the base. No need to prune before you leave in May—new growth would be vulnerable to summer heat stress.