die back

die back (third-person singular simple present dies back, present participle dying back, simple past and past participle died back)

1. (of a plant) To wither, particularly during the winter.
   • 2023 May 3, 'Industry Insider', “Funds for railway's upkeep”, in RAIL, number 982, page 84:

     The changing weather pattern, and in particular warmer winters, has also affected the inspection of earthworks. Lineside vegetation is not dying back as previously and has to be cleared before any inspections can take place.

• dieback (noun)