Horticulture in the Desert

a place to share and learn about plants in the Sonoran Desert

Cactus like to party in Winter!

Posted by VT Jenny on January 10, 2009

These cacti look like they have had a little too much eggnog or been around others that have. While this may look like a Styrofoam version of toilet papering someones house, this was done to help the cacti. The meristem, or growing tip of a cactus, is at the tips and is the most delicate and important part of a cacti. If the tip dies is cannot grow from that end anymore. The last photo shows a columnar cacti that lost it’s original meristem and now two laterals are growing. A good frost can damage the growing tip of some cacti. These styrofoam cups are “winter coats” for the meristem.
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