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Century Plant

Century Plant
Photo: Doug Bickerton, SA Department for Environment & Heritage
Invasive Plant
Century Plant
Agave americana

Perennial succulent with thick grey green sword shaped leaves in rosettes growing to 2m high and often forming clumps that are several metres wide. The leaves have teeth along the margins and a very sharp spine at the tip. Yellow flowers form on a large spike which can rise over 5m in height.



  • This plant forms thick clusters as the main plant 'suckers' to produce many new plants.
  • Plants that are in dumped garden waste readily take root and colonise natural areas.
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Other superior selections include;

  • Zamia furfuracea - Cardboard Palm
  • Yucca guatamalensis (Syn. Yucca elephantipes) - Spineless Yucca

Ask your local retailer for more superior selections


Alternative Plants

Flax Lilies
Photo: Macbird Floraprint
Alternative Plant Flax Lilies
Dianella species
Trees and Shrubs

Excellent Australian native selection with mid-dark green arching foliage and sprays of blue flowers followed by bright blue berries. There has been a proliferation of Dianella cultivars with a wide range of foliage colours and growth habits in recent years. Ask your retailer for the most reliable local selections.

Nut Palm
Photo: Lance Denby
Alternative Plant Nut Palm
Cycas media
Trees and Shrubs

This Australian native Cycad looks more like a stout fern. It has a short erect stem and palm like fronds up to 1.5m in length, with stiff green leaflets. This Cycas makes a wonderful accent plant.

Spineless Agave
Photo: Macbird Floraprint
Alternative Plant Spineless Agave
Agave attenuata
Succulent Plants

This spineless Agave has a thick stem and can reach 1.5m in height. A rosette of thick yet softly textured blue green leaves forms at the crown. Small 'pups' develop to the side of established stems allowing the plant to form thick clumps. This vegetative spread makes them somewhat easier to manage.

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