Thalia dealbata (Alligator flag)

Thalia dealbata (Alligator flag) has lovely architectural oar shaped leaves and mauve twisted flowers.

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. Currently I have a few T germinata too, please enquire, same price.

Now then, a little warning, this plant is known by some as the “Bee assassin”, and it definitely does trap bees and other insects within its flowers. If this troubles you, and it does me, cut off the flowers as I do and just enjoy the magnificent leaves.

Plant max height CM Planting depth cm Flowering from month Flowering to month Availability from month Availability to month
180 0-20 8 10 5 9


From April to August this plant will only be available mail order in three litre pots, and at the nursery in various potted options.


1 x bare root, 3 x bare root, 10 x bare root, 1 x P9 pot, 3 x P9 pot, 1 x 1 litre pot, 3 x 1 litre pot, 1 x 2 litre pot, 1 x 3 litre pot, 1 x 3.5 litre pot


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