varieties such as ‘Polly’, ‘Silver Dragon’, and ‘Black Velvet’ are now readily available. But before you take the plunge, you should know that the sometimes diva-like alocasia requires ...

More than 17,000 posts on Instagram include the hashtag #gothgarden and plants such as the Raven ZZ (aka Zamioculcas zamiifolia) and Alocasia Black Velvet are hot commodities in plant shops.