How to Prune Peruvian lily 'Celine'?
Pull up spent flowered stems after flowering, leaving tubers in ground

Peruvian lily 'Celine' · Alstroemeria 'Celine'
Grow in fertile, moist but well-drained soils in full sun or partial shade. Young plants best left undisturbed to form clumps, use a dry mulch for the first two winters. See Alstroemeria cultivation for further advice
Pull up spent flowered stems after flowering, leaving tubers in ground