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Penstemon ‘Dark Towers’ (photo courtesy of Terra Nova Nurseries, Inc.)
Penstemon ‘Dark Towers’ (photo courtesy of Terra Nova Nurseries, Inc.)

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Zone
Zones 1-11, 14-24
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Full, Partial
Regular WaterMinimal Water
Moderate, Minimal

Penstemon ‘Dark Towers’

Beard Tongue

Perennials

This is a hybrid of complex parentage. It is a sturdy, upright grower to 2 1/2 ft. tall and 3 ft. wide, with glossy, deep burgundy leaves that retain their color all season. Soft pink blooms are held high in summer. Tolerates heat, cold, and high humidity.

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