Zone 6 · winter lows -10°F to 0°F

Buddleja for Zone 6

79 Buddleja varieties rated hardy through Zone 6, ranked by how many gardeners actually grow them. Zone 6 is the sweet spot — nearly everything hardy grows here.

79 hardy hereof 80 Buddleja totalLast frost ~late April

The Buddleja that thrive in Zone 6

#1 most saved

Pugster Amethyst Butterfly Bush

Buddleja davidii 'Pugster Amethyst'

Zones 5–9· 441 saves· from $19

#2 most saved

Trio Butterfly Bush

Buddleja davidii 'Trio'

Zones 5–9· 371 saves

#3 most saved

Bicolor Butterfly Bush

Buddleja davidii 'Bicolor'

Zones 5–9· 344 saves· from $15

Butterfly Bush

Buddleja davidii

Zones 5–9· 273 saves· from $77

Butterfly Bush Purple Prince

Buddleja davidii 'Purple Prince'

Zones 5–10· 150 saves

Hot Raspberry Butterfly Bush

Buddleja davidii 'Hot Raspberry'

Zones 5–9· 137 saves· from $13

Butterfly Haven Butterfly Bush

Buddleja davidii 'Butterfly Haven'

Zones 5–9· 135 saves

Grand Cascade Butterfly Bush

Buddleja davidii 'Grand Cascade'

Zones 5–10· 134 saves· from $30

Deluxe Butterfly Bush

Buddleja davidii 'Deluxe'

Zones 5–10· 128 saves

Butterfly Bush Sky Blue

Buddleja davidii 'Sky Blue'

Zones 5–9· 126 saves

Butterfly Bush Empire Blue

Buddleja davidii 'Empire Blue'

Zones 5–9· 126 saves

Miss Molly Butterfly Bush

Buddleja davidii 'Miss Molly'

Zones 5–9· 125 saves· from $22

Miss Violet Butterfly Bush

Buddleja davidii 'Miss Violet'

Zones 5–9· 123 saves· from $23

Butterfly Bush Honeycomb

Buddleja davidii 'Honeycomb'

Zones 5–9· 122 saves

Pink Butterfly Bush

Buddleja davidii 'Charming Pink'

Zones 5–10· 115 saves

White Profusion Butterfly Bush

Buddleja davidii 'White Profusion'

Zones 5–9· 114 saves· from $45

Pugster Blue Butterfly Bush

Buddleja davidii 'Pugster Blue'

Zones 5–9· 114 saves· from $19

Butterfly Bush Potters Purple

Buddleja davidii 'Potters Purple'

Zones 5–9· 113 saves

Black Knight Butterfly Bush

Buddleja davidii 'Black Knight'

Zones 5–10· 112 saves· from $15

Ellen's Blue Butterfly Bush

Buddleja davidii 'Ellen's Blue'

Zones 5–9· 112 saves· from $30

Pink Delight Butterfly Bush

Buddleja davidii 'Pink Delight'

Zones 5–9· 110 saves· from $15

Color Crush Butterfly Bush

Buddleja davidii 'Color Crush'

Zones 5–10· 109 saves

Le Petit Butterfly Bush

Buddleja davidii 'Le Petit'

Zones 5–9· 108 saves

Fountain Butterfly Bush

Buddleja alternifolia

Zones 5–9· 107 saves

Showing the 24 most-saved of 79 Zone 6–hardy Buddleja varieties. See the full Buddleja list →

Buddleja in Zone 6

Will Buddleja survive a Zone 6 winter?

79 of the 80 Buddleja varieties in the Sow catalog are rated hardy through Zone 6, where winter lows reach -10°F to 0°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 Buddleja in Zone 6?

In Zone 6 the last spring frost typically lands around late April and the first fall frost around mid-October. 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 Buddleja is best for Zone 6?

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 Buddleja

Every Buddleja variety (80)

Buddleja in other zones

More for Zone 6

See Buddleja in your Zone 6 yard

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