Moderate water use in Phoenix; irrigate deeply and regularly during hot weather, allowing the upper few inches of soil to dry between waterings. Reduce irrigation in winter.
Hall’s honeysuckle (Lonicera japonica ‘Halliana’) is a vigorous twining vine with fragrant white flowers that age to yellow. It tolerates Phoenix heat best with afternoon shade and regular irrigation.
Light: Morning sun with afternoon shade is ideal in Phoenix; tolerates partial shade. Avoid reflected heat from west-facing walls.
Water: Moderate water use in Phoenix; irrigate deeply and regularly during hot weather, allowing the upper few inches of soil to dry between waterings. Reduce irrigation in winter.
Soil: Well-drained soil enriched with compost; tolerates varied soils, but highly alkaline conditions may cause iron chlorosis. Mulch the root zone, keeping mulch away from stems.
Mature size: Typically 15–30 feet long and 6–10 feet wide on a support; can spread considerably farther if unmanaged.
Bloom: Heaviest flowering in spring to early summer, with intermittent blooms into fall when adequately watered; extreme summer heat may reduce flowering.
Evergreen / deciduous: Usually evergreen in Phoenix; may become partially deciduous after freezes or severe moisture stress.
Growth rate: Fast with adequate water; slower under extreme heat or drought.