rhododendron

Question

I’ve uncovered my dwarf rhododendron after the winter to find the leaves looking withered and nothing much happening.

Answer 1

This is most likely winter damage from the cold. Please see these articles:
https://ask.extension.org/questions/221955
http://www.hortmag.com/weekly-tips/pests-diseases/what-to-do-about-winter-damaged-rhododendrons
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-winter-care.htm