How to Prune abelia 'Prostrate White'?
Shorten flowered shoots to about 1.5–2.5 cm from the previous year's growth. If flowering is on last year's growth, prune after flowering; if on current-year growth, prune the following early to mid-spring.

abelia 'Prostrate White' · Abelia × grandiflora 'Prostrate White'
Requires a sheltered, sunny situation with a moist but well-drained soil
Shorten flowered shoots to about 1.5–2.5 cm from the previous year's growth. If flowering is on last year's growth, prune after flowering; if on current-year growth, prune the following early to mid-spring.