The Difference Between Yuccas and Agaves

Natives of Mexico and the American Southwest, both Yucca and Agave plants belong to the family of Agavaceae.

In both cases their leaves grow in a spiral pattern out from the centre forming a ‘rosette’ structure.

The rosette structure of a Yucca as seen from the side.Yucca in the gardens of Las Brisas in Huatalco, MexicoLooking down on the ‘rosette’ structure of a Yucca.Looking down on the 'rosette' structure of a Yucca in the Puerto Vallarta Botanical Garden, Mexico

Yuccas are less fleshy than Agaves and generally less spiny.

Agaves are fleshy enough that the imprint of each leaf is seen on the others.Cactus 'Agave' in the Hortus Gardens in Amsterdam, Holland

Yuccas survive in colder wetter climates than the Agaves.

This is a Vancouver Yucca where the winters are relatively mild and considerably wetter than Arizona. Yucca with flowers in the photo app Snapseed

Yuccas typically bloom every year with bell-shaped blossoms while many Agaves bloom only once and then die, and the flower has a very different shape.

Yucca’s bell-shaped flowers.Agave Blossom Painted in WaterlogueAn old botanical illustration of agave flowers on an agave known as a Century Plant because it only blooms once in a hundred years (probably closer to 40-60 years but that can be a lifetime in people years). Etching of the Century Plant (Agave)Agave sisalana flowers
HDR Puerto Vallarta Botanical Garden poster in Snapseed

Another difference between the two is that over time Yuccas will grow taller whereas the Agave only gets bigger.

This Yucca was growing in the hot dry climate of the Saguaro National Park in Arizona – that’s a Saguaro cactus peeking out of the bottom left.Yucca tree in Arizona, USAThese Yucca trees with exposed trunks are in the Hortus Garden in Amsterdam. The best known of tree-like Yuccas are ‘Joshua Trees’ which have an entire American National Park named after them.A Yucca tree in the Hortus Botanical Garden in Amsterdam, HollandThis ancient Agave has grown huge in amongst the ruins of a church in Zacatecas, Mexico.Ancient agave in amongst the ruins of a church in Zacatecas, Mexico

The Yucca ‘group’ features about 40 species, whereas the Agaves number around 300 species.

I’ve been exploring the interesting qualities of Yuccas and Agaves for awhile now. This Agave azul (blue Agave) in Zihuatanejo is one of the few without any thorns and perhaps, because of this, my little camera had trouble focusing. So it managed to turn a fleshy Agave into something that was delicate and ethereal.  Ethereal Agave Azul (Blue Agave) in Zihuatanejo, MexicoWatercolour painting in my sketchbook of a yucca in bloom that has grown tall enough to turn itself into a tree. This was inspired by a yucca ‘tree’ growing besides Las Margaritas in Vancouver.Watercolour painting in my sketchbook of a yucca that has grown tall enough to turn itself into a tree.

 

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