Photos from the collection of more than 100 varieties of native azaleas.

Rhododendron vaseyi

‘Spring Rainbow’

‘Tellico’

‘Wise Decision’

‘July Jester’

‘Late Date’

‘In Memory of Fred Galle’

Rhododendron canadense

‘When Dreams Come True’ providing nectar for this hummingbird moth

Rhododendron flammeum

Rhododendron arborescens ‘White Lightning’

Rhododendron arborescens ‘Double Deal’

Rhododendron prinophyllum grows wild in the bog

Swamp azaleas, Rhododendron viscosum, are a common, very fragrant midsummer delight along the shores of ponds and lakes.

‘Weston’s Lemon Drop’

Rhododendron calendulaceum ‘Cherokee’

Rhododendron periclymenoides ‘Lavender Girl’ and R. x ‘Pastel Orange’

‘Trailside’

‘Deep Pink’ Pinxsterbloom, R. periclymenpides, provide the arbor with early spring color.

The well-named Flame azalea, Rhododendron calendulaceum, blooms in a wide range of hot colors: from yellow to orange to red.