low butterfly-bush prune back in spring. This plant grows to about 150 cm. The flower colour is purple. The flowering period is July – September. This plant is completely hardy. Recommended quantity per square meter : 1. Common name : Butterfly bush Possible alternative : Buddleja davidii nanhoensis. Main difference: Buddleja davidii ‘Nanho Purple’ is darker of colour . This plant has received the following award: AGM, Award of Garden Merit, 2002, also Award of Merit by the Royal Society for Boskoop Cultures 1980. Only available when ordered in advance.
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