Agave macroacantha

Please note all images are for illustrative purposes only, depending on the season or time of year the plant you receive may be different than pictured.

Eventual Plant Size


Agave macroacantha, the black-spined agave is a really architectural smaller sized agave perfect if you love agaves but don’t have the space to accommodate some of the other monsters. Agave macroacantha produces symmetrical rosettes of neat grey-blue leaves beautifully contrasted by black spines and terminal spikes. Rarely growing more than 45cm in diameter this agave is happy in a container or planted out, where if kept dry should be able to withstand temperatures down to minus 5 degrees Celsius. In the wild Agave macroacantha can be quite variable in leaf colour, the plants we grow are a selected form with more attractive bluer leaves.


As with all of the hardier agaves if you want to try growing year-round outside choose a hot sunny position with perfect drainage, add gravel and ideally mulch around the base with gravel too. I always recommend building a roof over the top of treasured agave plants in winter. Simply hammer in 4 stakes around the agave a fix a clear plastic ‘roof’ onto the top of each stake above the agave leaving the sides clear allowing wind to pass through the leaves. Alternately we recommend growing in a pot in full sun from April to the end of October depending on the weather and moving it to a greenhouse, conservatory or even shed for the winter where it can have protection from freezing and wet. No watering will be needed from November to March.



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