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Growing Aloe Vera and Other Succulents

Broadly speaking, succulents are plants that have certain adaptations that allow them to endure periods of drought.  The primary adaptation is “succulence”—they are juicy, storing water in thickened leaves or stems. Cacti are succulents, although in commercial horticulture we usually say “cacti and succulents,” to refer to members of the cactus family and everything else that is succulent but is not in the cactus family.

Members of the cactus family are native only to the Americas and are grouped into the cactus family because they share unique similarities in genetics and flower structure. The other succulents are found in arid regions all around the world, including the Americas (for example Agave, which is the source of tequila).  One of the “Old World” succulents is Aloe vera, which is probably the only succulent most people know by its scientific name.  Aloe is used in many cosmetic products, soaps, and homeopathic remedies.  The sap is popularly used as an ointment for mild burns—just break off a leaf and apply. Whether it actually works is beyond my training; I’m just an ornamental plant guy and I’m not an herbalist.

The keys to growing succulents are:

  • Plenty of light. Right in a window. Cacti will be happy in a hot, south-facing window. If a cactus has a “hairy” look, give it as much light as possible. Your aloe can get by with less light, and may burn in a south window in summer. In the tropics I have seen them grown under the shade of tall trees and they do fine. So in Maryland, try it in an east-facing window.
  • Occasional watering. When the pot is dry (light) water it thoroughly and let it dry out again between waterings.  In the winter, you can let cacti go for months without water, especially if they are in a cool spot.  Succulents in general prefer more water.  That said, some succulents like the living stones (Lithops) are Very Fussy, so it’s always a good idea to read about what you have purchased.  Another exception: Christmas cacti are actually jungle plants that live up in the trees; they should still dry out some between waterings but should be treated more like a standard houseplant: water year round when the soil begins to dry out.
  • Some fertilizer, but not a lot. They don’t get much in the way of nutrients in their native environments. High nitrogen and frequent fertilizing encourages soft growth, which is unattractive.
  • Well-draining potting soil—a cactus mix—in a pot with drain holes.

Succulents and cacti tend to be more attractive when they are stressed—that is, holding back on water and fertilizer.  Low light, too much water, too much fertilizer and you get stretched or floppy plants.

Aloe vera is easy to propagate as it makes lots of offsets (pups).  Just tease them off of the mother plant (with their roots attached) and pot in cactus soil, keeping it on the dry side for a week before beginning to water.  Larger offsets (4 or 5 inches tall) will be easier for you to establish than smaller ones.

by Larry Hurley, Behnke horticulturist

This Post Has 2 Comments

    1. I think it’s a good mix for the average person.

      They mostly are bought in as an “assortment” and don’t come into our store labelled by name, so if you were interested in adding to your collection of succulent Euphorbias, for example, you would want to go to a specialist dealer. But if you want a half dozen (or dozen!) interesting cacti and succulents in small pots. that we’ve got.

      Since the assortment goes up and down depending on store traffic, you probably want to call or email before you come in to see when the next shipment arrives. You can email to Behnkes@behnkes.net

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