If it is just some of the older leaves this can be normal if it is all the leaves it is dead.
pat loves lina c
A:any of genus (rhododendron) of widely cultivated shrubs and trees of the health family with a alternate leaves showy flowers.
Rhodendrons are evergreen so this means that they carry leaves all the year round. As all leaves have a natural lifespan the shrub will continue to lose leaves 12 months of the year but as long as the amount of new leaves equates or exceeds to the number falling off there is no problem. If the leaf fall is excessive you need to look at things like disease,insect infestation or drought.
I think it's a deficiency of nitrates, which help plants to produce chlorophyll, and which is the pigment that turns leaves green, and without it, leaves can become yellow.
Rhododendron, Pentanthera (deciduous) and Tsutsuji (evergreen) are the two types of azalea plants. The scientific name for a leaf is a leaf. There are 8 types of Rhododendrons. One type is azalea. There are two kinds of azaleas; deciduous and evergreen. One sheds its leaves in the fall (leaf abscission), one keeps them all year long.
brown dead
heterzygous with brown leaves
For a species rhododendron such as Rhododendron maximum, it is written: R. maximum. For a hybrid rhododendron such as Rhododendron 'Nova Zembla', it is written Rcv. 'Nova Zembla' (Rcv. meaning rhododendron cultivar). For a selection of a species such as Rhododendron yakushimanum 'Koichiro Wada', it is called R. yakushimanum 'Koichiro Wada' although you may see it written Rcv. 'Koichiro Wada'.
All the Leaves Are Brown was created in 1965.
Rhododendron maximum in the family Ericaceae
Rhododendron hirsutum was created in 1753.
Rhododendron prunifolium was created in 1913.