Mammillaria elongata f. cristata - Brain Cactus - Statement Plants

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Mammillaria elongata f. cristata - Brain Cactus

An unusual looking cactus commonly know as the 'Brain Cactus' due to its crested growth pattern. A compact growing plant, ideal for pots.

Full sun to part shade

Drought tolerant

Well drained gritty soil

Partly frost tolerant (see notes)

Pot Size

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  • Mammillaria elongata f. cristata is the crested form of this popular species. Often called the 'Brain Cactus' as its stems grow in a crested shape, ultimately resembling a brain.

    It is fairly slow growing, but easy enough to grow. As it is a crested form, normal growth can return at any time. If it does, remove this growth from the crested part. It likes a very well drained growing medium and a position with plenty of bright light. It can be placed in full sun, although some relief from the harshest afternoon sun is beneficial. Water only when dry in the warmer months and very sparingly in winter.

    With its unique features, this cactus is certainly a statement piece.


    Brain Cactus, Crested Mammillaria
    Mammillaria elongata

    Plant height 15cm
    Plant width Clusters to around 15cm
    Habit Clump forming, prostrate
    Growth Cycle Perennial
    Foliage Crested, prostrate green stems with white spines.
    Flower Small cream
    Flowering time Spring, summer
    Toxicity Non toxic, but keep away from children and pets.