Rhododendron macabeanum
{{short description|Species of plant}}
{{Speciesbox
| image = Rhododendron Macabeanum (1) (8198435833).jpg
| taxon = Rhododendron macabeanum
| authority = G.Watt ex Balf.f.{{cite web|url= https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332822-1|title= Rhododendron macabeanum G.Watt ex Balf.f.|author=|date=n.d.|website=Plants of the World Online|publisher=The Trustees of the Royal Botanic Gardens, Kew|access-date= August 3, 2020}}
}}
Rhododendron macabeanum, the McCabe rhododendron, is a species of flowering plant in the heath family, Ericaceae. It is native to Assam and Manipur in northeastern India. It is a large evergreen shrub or small tree growing to {{convert|12|m|ft|abbr=on}} in height, with leathery leaves up to {{convert|30 |cm|in|abbr=on}} in length. The felted undersides are a grey or buff colour. The flowers, borne in trusses in spring, are bell-shaped, pale to deep yellow, with a purple basal blotch.
In cultivation in the UK Rhododendron macabeanum has gained the Royal Horticultural Society's Award of Garden Merit.{{cite web | url = https://www.rhs.org.uk/Plants/15371/Rhododendron-macabeanum/Details
| title = RHS Plantfinder - Rhododendron macabeanum | accessdate = 3 October 2018}}{{cite web
| url = https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf | title = AGM Plants - Ornamental | date = July 2017
| page = 85 | publisher = Royal Horticultural Society | accessdate = 2 October 2018}} It is hardy down to {{convert|-10|C|F|abbr=on}} but requires a sheltered spot in dappled shade, and an acid soil enriched with leaf mould.
Rhododendron macabeanum - Mendocino Coast Botanical Gardens - DSC02088.JPG | Mendocino Coast Botanical Gardens
Rhododendron macabeanum hybrid - Trengwainton Garden - Cornwall, England - DSC02600.jpg | Hybrid in Trengwainton Gardens
Rhododendron macabeanum - Mendocino Coast Botanical Gardens - DSC02175.JPG | Mendocino Coast Botanical Gardens
Rhododendron macabeanum alpine form (2).jpg | Alpine form
Rhododendron macabeanum in Hackfalls Arboretum (3).jpg | In Hackfalls Arboretum
Rhododendron macabeanum alpine form (3).jpg | Alpine form