Zone 4 · winter lows -30°F to -20°F

Penstemon for Zone 4

28 Penstemon 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.

28 hardy hereof 49 Penstemon totalLast frost ~mid-May

The Penstemon that thrive in Zone 4

#1 most saved

Foxglove Beardtongue

Penstemon digitalis 'George Home'

Zones 4–8· 304 saves

#2 most saved

Beardtongue Rondo

Penstemon barbatus 'Rondo'

Zones 4–9· 291 saves

#3 most saved

Blackbeard Beardtongue

Penstemon digitalis 'Blackbeard'

Zones 4–8· 97 saves· from $21

Dark Towers Penstemon

Penstemon digitalis 'Dark Towers'

Zones 4–8· 93 saves· from $21

Foxglove Beardtongue

Penstemon digitalis

Zones 4–8· 91 saves· from $9

Red Foxglove Penstemon

Penstemon digitalis 'Arabesque Red'

Zones 4–8· 88 saves

Penstemon pinifolius

Zones 4–9· 81 saves

Aurora Foxglove Beardtongue

Penstemon digitalis 'Aurora'

Zones 4–8· 79 saves

Kissin' Kuzins Beardtongue

Penstemon digitalis 'Kissin' Kuzins'

Zones 4–8· 78 saves

Husker Red Beardtongue

Penstemon digitalis 'Husker Red'

Zones 4–8· 77 saves· from $9

Stapleford Gem Beardtongue

Penstemon digitalis 'Stapleford Gem'

Zones 4–8· 71 saves

Penstemon

Penstemon x hybrida

Zones 4–9· 68 saves

Apple Blossom Beardtongue

Penstemon digitalis 'Apple Blossom'

Zones 4–8· 67 saves

Scarlet Beardtongue

Penstemon barbatus

Zones 4–9· 67 saves

White Wand Beardtongue

Penstemon tubaeflorus

Zones 4–8· 64 saves

Smooth Beardtongue

Penstemon glaber

Zones 4–8· 61 saves

Hidcote Pink Beardtongue

Penstemon digitalis 'Hidcote Pink'

Zones 4–8· 61 saves· from $14

Onyx and Pearls Beardtongue

Penstemon x hybrida 'Onyx And Pearls'

Zones 4–8· 58 saves

Dakota Burgundy Beardtongue

Penstemon digitalis 'Dakota Burgundy'

Zones 4–8· 55 saves

Scarlet Beardtongue

Penstemon barbatus 'Coccineus'

Zones 4–8· 48 saves

Penstemon Midnight Masquerade

Penstemon x hybrida 'Midnight Masquerade'

Zones 4–9· 46 saves· from $12

Penstemon barbatus Pristine Lilac Purple

Penstemon barbatus 'Pristine Lilac Purple'

Zones 4–9· 44 saves· from $12

Penstemon Rose Elf

Penstemon barbatus 'Rose Elf'

Zones 4–9· 44 saves

Penstemon Red Rocks

Penstemon x hybrida 'Red Rocks'

Zones 4–9· 42 saves

Showing the 24 most-saved of 28 Zone 4–hardy Penstemon varieties. See the full Penstemon list →

Penstemon in Zone 4

Will Penstemon survive a Zone 4 winter?

28 of the 49 Penstemon 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 Penstemon 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 Penstemon 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 Penstemon

Every Penstemon variety (49)

Penstemon in other zones

More for Zone 4

See Penstemon 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.