If your climate is right, edible cacti and succulents are extremely low-maintenance plants and delicious, too!
Some people ask what the difference is between cacti and succulents. The definition of a succulent plant is one that has "thick, fleshy, water-storing leaves or stems," so technically, a cactus is a succulent plant. But most people use the term cacti to mean succulents with spines on them, and all true cacti belong to the plant family Cactaceae.
Let's talk about the wide variety of edible cacti and other succulents available to you for edible landscaping:
All true cactus fruit is safe to eat, but some taste better than others. Some taste best cooked, and most have to be peeled or otherwise have their spines removed before you put one in your mouth! And, of course, everyone likes different things. So it is advisable to try some of the cacti you are considering before buying, to make sure you like them and are not allergic.
Which edible cactus you choose depends on what you want to use it for and what look you want in your edible landscaping. Many edible cacti belong to more than 200 Opuntia species, also known as the Nopales, Nopalitos, the Cactus Pear, or the Paddle Cactus.
The leaves and egg-shaped fruit (or "tunas") of all Opuntias are edible. You can identify an Opuntia by its oval, flat leaves, or "paddles," covered with spines.
Prickly Pear Cactus (Opuntia ficus-indica) is the most famous and well-loved of the edible cacti. Also called the Indian Fig, its leaves and fruit are very flavorful and staple many dishes in Central America and the southwestern United States. This cactus has been introduced into places as varied as Australia, northern Africa, and the Galapagos Islands.
Opuntias are quite cold-tolerant (growing as far north as British Columbia) and, in some places, have become invasive. Still, they have many uses in landscaping (they make excellent barrier hedges) and can make a stunning centerpiece in rock gardens or other drought-tolerant landscapes.
Saguaro (Carnegiea gigantea), the elegant symbol of the southwestern US desert, has edible fruit when fully mature (which can take decades). However, the Saguaro is difficult to obtain and is illegal to move without a permit in many areas.
Organ Pipe Cactus (Stenocereus thurberi) resembles a Saguaro but is smaller with "arms" that usually grow at the base of the plant rather than farther up the main trunk. It has lavender flowers and red fruit known as Pitahaya Dulce, about the size of a golf ball.
The Organ Pipe Cactus National Monument in Arizona (United States) is full of these, and a visit is a wonderful way to see these lovely cacti in their native environment.
Barrel Cactus fruit can be picked and eaten raw and has no spines, making it easy to handle. The flowers and buds are also edible. One of the legends of the American Wild West was that Barrel Cacti could be cut open and the pulp squeezed for water that would keep you alive in the deep desert.
The vine-like Night-Blooming Cereus (Hylocereus undatus), otherwise known as the Dragon Fruit or Pitaya (and also called Pitahaya Dulce in some areas), is a cactus with long fleshy leaves and bright red or yellow fruit with a white or red center and black, crunchy seeds with high nutritional value. The plant has large white fragrant flowers that only bloom at night.
Several species are also called "Night-Blooming Cereus," such as Peniocereus greggii.
Another group of edible cacti is the Epiphyllum species or Orchid Cactus, which look and act much like the Hylocereus species, but their fruit isn't as large. These all have stunning flowers!
Edible Succulent Plants
Several species of Agave can be made edible, the most notable being Agave tequilana, which is used in the production of tequila!
All Sedum species, commonly called Stonecrops, are edible. They are used in salads and are said to have a sour or peppery taste. Eat these sparingly; some can cause indigestion if eaten in large amounts.
Purslane is useful as ground cover in moist areas, easy to grow, and quite pretty, not to mention extremely tasty when cooked.
In the US, Purslane is considered a weed, but it is excellent in stews and soups and tasty fried and reasonably good in salads.
- Succulentopedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus