Penstemon - 'Pennington Gem' (Beard Tongue)
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Penstemon cultivation notes: Penstemon prefers a sunny sheltered location. This perennial is not fully hardy so avoid cold areas. Phlox flourishes on humus rich sandy soil soils. Cut stems after flowers fade. Cut back hard in Autumn / divide every 3-4 years. Mulch in autumn.
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Plant Strengths: All round tough plant suitable for problem areas; Suitable for container growing.
Plant Weaknesses: Will not tolerate exposed, cold or hot and sunny locations; Does not tolerate very dry or very wet soils.