Zone 4 · winter lows -30°F to -20°F

Rhododendron for Zone 4

33 Rhododendron varieties rated hardy through Zone 4, ranked by how many gardeners actually grow them. Zone 4 is short, intense seasons — plants here are the toughest in the catalog.

33 hardy hereof 111 Rhododendron totalLast frost ~mid-May

The Rhododendron that thrive in Zone 4

#1 most saved

Catawba Rhododendron

Rhododendron catawbiense

Zones 4–8· 102 saves

#2 most saved

Double White Rhododendron

Rhododendron x hybrida 'Double White'

Zones 4–8· 83 saves· from $24

#3 most saved

Great Laurel Rhododendron

Rhododendron maximum

Zones 4–8· 70 saves

Bone Hardy Azalea

Rhododendron obtusum 'Bone Hardy Azalea Sampler'

Zones 4–8· 67 saves

Elite Star Rhododendron

Rhododendron x hybrida 'Elite Star'

Zones 4–7· 66 saves· from $30

Mezitt Elite Star Rhododendron

Rhododendron x hybrida 'Mezitt Elite Star'

Zones 4–8· 62 saves

Rhododendron x hybrida Double Pink

Rhododendron x hybrida 'Double Pink'

Zones 4–8· 62 saves· from $22

Double Dark Pink Rhododendron

Rhododendron x hybrida 'Double Dark Pink'

Zones 4–9· 59 saves· from $24

Golden Lights Rhododendron

Rhododendron native 'Golden Lights'

Zones 4–7· 53 saves

Holden Rhododendron

Rhododendron subgenus x 'Holden'

Zones 4–8· 48 saves

Inkarho Rhododendron

Rhododendron x hybrida 'Inkarho'

Zones 4–8· 46 saves

Mandarin Lights Azalea

Rhododendron kiusianum 'Mandarin Lights'

Zones 4–7· 43 saves· from $30

Daurian Rhododendron

Rhododendron dauricum

Zones 4–7· 39 saves

Narcissus-flowered Azalea

Rhododendron narcissiflorum

Zones 4–8· 38 saves

Royal Azalea

Rhododendron schlippenbachii

Zones 4–7· 36 saves

Mid-Winter Daurian Rhododendron

Rhododendron dauricum 'Mid-Winter'

Zones 4–8· 28 saves

Karens Azalea

Rhododendron 'Karens'

Zones 4–9· 27 saves

Swamp Azalea

Rhododendron viscosum

Zones 4–9· 26 saves

Pinxterbloom Azalea

Rhododendron periclymenoides 'Pinxterbloom'

Zones 4–9· 23 saves

Black Hat Rhododendron

Rhododendron 'Black Hat'

Zones 4–8· 22 saves· from $24

PJM Elite Rhododendron

Rhododendron 'Pjm Elite'

Zones 4–8· 22 saves· from $92

Sweet Azalea

Rhododendron arborescens

Zones 4–7· 22 saves

PJM Elite Star Rhododendron

Rhododendron 'Roblet'

Zones 4–8· 21 saves

Rosy Lights Azalea

Rhododendron 'Rosy Lights'

Zones 4–7· 21 saves· from $30

Showing the 24 most-saved of 33 Zone 4–hardy Rhododendron varieties. See the full Rhododendron list →

Rhododendron in Zone 4

Will Rhododendron survive a Zone 4 winter?

33 of the 111 Rhododendron varieties in the Sow catalog are rated hardy through Zone 4, where winter lows reach -30°F to -20°F. Hardiness is per-variety, not per-genus — the plants listed above are the ones that hold up; others in the genus are not rated for this zone.

When should I plant Rhododendron in Zone 4?

In Zone 4 the last spring frost typically lands around mid-May and the first fall frost around late September. Planting after the last frost — or in early fall, so roots establish before the ground cools — gives the best establishment. Each plant page lists its own planting months.

Which Rhododendron is best for Zone 4?

Start at the top of the list above: it is ranked by how many gardeners actually save and grow each variety, which is a strong real-world reliability signal. Then narrow by your sun exposure and the mature size that fits the bed.

Keep exploring

All Rhododendron

Every Rhododendron variety (111)

Rhododendron in other zones

More for Zone 4

See Rhododendron in your Zone 4 yard

Snap a photo of your space and Sow places these varieties in it at true mature size — then keeps the care schedule for everything you plant.