Thalia dealbata (Alligator flag) is just the thing to have if there are alligators about! The tall strongly architectural stiff leaf and flower stems waggle about as they swim through and warn you that they are coming. As if that wasn’t enough, the lovely architectural oar shaped leaves and mauve twisted flowers give a welcome burst of colour and vitality at the end of the season. Plant in a large basket in the sunniest spot you can give it and use plenty of fertiliser; split and repot often.
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