Cactus & Succulents

Embrace the Southwest with Succulents

When people think of the desert, they typically think of succulents. Cacti, agave, Aloe Vera, and others can bring a Southwestern flair to your Tucson home or business. Explore Horticulture Unlimited’s collection of succulents to discover how you can beautify your home with these low-maintenance plants.

*Our guide provides informational resources regarding plants that we commonly use. Horticulture Unlimited it not a nursery or supplier. We obtain necessary materials for installation purposes only, and recommend consulting a nursery or supplier for direct purchasing needs.

**The scientific names of plants may periodically change. While we attempt to update our Plant Guide to reflect this, there may still be multiple names found for these plants in other directories.

Austrocylindropuntia subulata

Eve’s Needle

The branching, tree-like specimen grows to thirteen feet tall and about ten feet wide, with cylindrical deep green leaves. New…

This plant is fast-growing once established and requires minimal care. It is hardy from twenty-five to thirty degrees Fahrenheit. If…

Carnegiea gigantea

Saguaro Cactus

This giant monarch cactus grows to fifty feet or more with a large spread, depending on how many arms it…

This plant is hardy to about fourteen degrees Fahrenheit and likes full sun with reflected heat. It is drought-resistant and…

Cephalocereus senilis

Old Man Cactus

The slow-growing cactus reaches about twenty feet or more in its native habitat, producing many columnar stems that are usually un-branched…

It enjoys well-draining soil and full sun, but prefers light afternoon shade. Bright sunlight encourages the growth of hair. Provide…

Cereus peruvianus f. monstrose

Peruvian Apple

The cactus is admired for its knobby branches, flowers that open at night and red, apple-like fruit. It is a…

The plant grows in full sun to partial shade and does best in sandy soils that are well-draining. It likes…

Cereus repandus

Night Blooming Cereus

The cactus is admired for its knobby branches, flowers that open at night and red, apple-like fruit. It is a moderate…

The plant grows in full sun to partial shade and does best in sandy soils that are well-draining. It likes…

Cleistocactus strausii

Silver Torch Cactus

This striking cactus develops slender columns up to eight to ten feet tall. It is a vigorous grower that has…

This showy plant grows quickly during the summer with supplemental irrigation, but is generally drought-resistant. The silver torch likes to…

Crassula ovata

Jade Plant

Jade plant is noted for its interesting green, oval-shaped succulent foliage that grows out from a multi-branching trunk. The shrub…

The jade plant grows best in filtered sun to partial shade, and may sunburn if planted in reflected sun. It…

Echinocactus grusonii

Golden Barrel Cactus

The golden barrel cactus has a globe-like appearance and is recognized by its magnificent color that comes from vertical yellow…

This cactus is drought-resistant, so water it once per month during the warm, dry season. It does not need any…

Echinopsis hybrid

Easter Lily Cactus

This fast-growing group of cacti varies in size, from small, low-growing globular plants to large, branching, columnar specimens. Some of…

The Easter lily cactus can take up to four years to produce flowers if planted from seed. The flowers are…

Echinopsis peruviana

San Pedro Macho

This species is closely related to Echinopsis pachanoi and the two are sometimes confused with each other. The columnar Echinopsis…

The plant likes full sun to partial shade and is drought-resistant. It prefers occasional water during the hot, dry season…

Echinopsis spachiana

Golden Torch

The golden torch is a beautiful, multi-stem, columnar cactus that produces many upright branches and grows five to seven feet…

This plant needs moderate water during hot dry summers, but is drought-tolerant and should not be over-watered. Plant it in…

Echinopsis terscheckii

Cardon Grande

One of the largest of the Echinopsis species, this fast-growing, attractive, columnar cactus reaches heights of twenty-five feet or more…

The cardon grande grows best in full sun with reflected heat and thrives in hot, dry climates. It is drought-resistant…

Euphorbia antisyphilitica

Candelilla

The low-growing shrub has clusters of thin, upright, bluish-green, pencil-like stems that grow in clumps to about three feet. The…

It is a moderate grower that takes full sun with plenty of reflected heat. This succulent needs little water once…

Euphorbia macrocarpus

Lady Slipper Plant

The attractive, slow-growing succulent is recognized by its bright red flowers that resemble an elegant shoe or slipper. The plant…

It is hardy to about thirty degrees Fahrenheit, but mature plants can handle lower temperatures before showing signs of frost damage…

Euphorbia mauritanica

Pencil Milk Bush

The pencil milk bush is a pencil-like, branching plant with upright, bright green, cylindrical stems that sprout in the shape…

It is heat and drought-tolerant, but likes additional water during the hot summer. Do not over-water this succulent because it…

Euphorbia milii

Crown of Thorns

The bushy, spiny succulent develops shoots that can reach up to three to four feet in height, with a two-foot…

It likes full sun or filtered shade. The crown of thorns is a slow-growing plant that needs well-draining, sandy soil…

Euphorbia resinifera

Resin Spurge

This low-growing succulent has erect, thick, bluish-green to lime green, four-sided stems with small brown thorns, reaching one to two…

The plant is hardy to twenty-five degrees Fahrenheit. It likes full sun to partial shade and tolerates most soils as…

Euphorbia rigida

Gopher Plant

This mounding evergreen grows to about two feet tall with a three-foot spread, and has attractive, narrow, pointed, blue-green, sharp…

The gopher plant is extremely hardy to zero degrees and is a moderate to fast grower. It performs best in…

Euphorbia royleana

Churee

The attractive, fleshy succulent has deep green branches and ornamental, knobby bumps on its columns. It grows eight to ten…

Plant the churee in well-draining soil in full sun to partial shade. It is hardy to twenty-five to thirty degrees…

Euphorbia tirucalli

‘Sticks of Fire’

This endangered species is recognized for its light green, pencil-thin, bush-like branches with miniature leaflets. It is fast-growing reaching heights…

Plant it in well-draining soil and full sun with reflected heat or light shade. It is salt and drought-tolerant, and…

Ferocactus glaucescens

Blue Barrel Cactus

This barrel cactus is about two feet tall and wide with a globular shape and a greenish-blue skin. As the…

The plant is slow-growing when young, and is generally easy to grow and care for. It likes full sun to…

Ferocactus wislizenii

Fishhook Barrel Cactus

The Fishhook Barrel Cactus is recognized by the curved and hooked central spine and by the large, ribbed, “barrel-shaped” body…

Fishhook Barrel Cactus is an extremely easy accent plant to grow in and around the Tucson area. It tolerates most…

Fouquieria splendens

Ocotillo

The Ocotillo is a mainstay of Arizona desert landscaping. It is made of many spiny unbranched stems with bright orange-red…

Plant occotillo in fall or spring in full sun and in soil that drains well. Recently planted ocotillos should be…

Myrtillocactus cochal

Candelabra Cactus

The large, sprawling cactus is admired for its funnel-shaped, ivory flowers, and reaches heights of eight to ten feet tall…

The cactus likes full sun and reflected heat, and grows in rocky, fertile soils. It is drought-resistant, although it prefers…

Myrtillocactus geometrizans

Blue Candle

This columnar, architectural, tree-like specimen grows to fifteen feet with a candelabra form. Its spiny green stems are thick and…

The blue candle is drought-resistant but prefers occasional water. It is hardy to twenty-five degrees Fahrenheit and can show some…

Opuntia basilaris

Beavertail Cactus

This interesting, oval-shaped cactus grows two to three feet tall and four feet wide. It has short, greenish-purple segments resembling…

Beavertail cactus likes full sun with reflected heat and is hardy from about nine to fifteen degrees. Plant the cactus…

Opuntia englemannii

Englemann’s Prickly Pear

Englemann’s Prickly Pear is native to the Sonoran and Chihuahuan deserts. The sage green pads of this cactus blend well…

Englemann’s Prickly Pear is very drought tolerant, needing little to no water once fully established. Plant in full sun or…

Opuntia ficus indica

Indian Fig

This immense, branching cactus with a massive trunk grows to fifteen feet tall and ten feet wide. It produces large…

The Indian fig likes full sun and reflected heat. It also prefers well-draining soil and tolerates drought. During the hot…

Opuntia santa-rita

Purple Prickly Pear

Native to the Sonoran desert, the purple prickly pear grows in clumps, usually to about 4 feet tall by 5…

Purple Prickly Pear is very drought tolerant, needing little to no water once fully established. Plant this cactus in full…

Opuntia santa-rita

Santa Rita Prickly Pear

This low-growing prickly pear cactus forms large clumps and has a short trunk growing to heights of two to five…

It is hardy to fifteen degrees Fahrenheit or lower. The Santa Rita prickly pear is drought-resistant but needs supplemental, monthly…

Pachycereus marginatus

Mexican Fencepost

This handsome cactus has tall, columnar trunks and reaches heights of twenty feet, or more. It produces clusters of stout…

Plant the Mexican fencepost in well-draining soil and full sun with reflected heat or partial shade. It is drought-resistant, but…

Pachycereus schottii

Senita Cactus

The columnar cactus grows fifteen feet tall and about ten feet wide, branching upwards from its strong base at ground…

It is extremely drought-resistant and usually survives on natural rainfall. The senita cactus is hardy to about seventeen degrees Fahrenheit…

Pachycereus schottii f. monstrosus

Totem Pole Cactus

The slow-growing, smooth-skinned, columnar cactus grows ten to twelve feet with tall stems that branch at the base to form…

The plant is hardy to twenty-five degrees Fahrenheit and should be protected against frost. It likes full sun with plenty…

Portulacaria afra

Elephant’s Food

The attractive, evergreen succulent can grow to eight feet or more, in its natural enviornment. It has small, circular, fleshy…

This plant likes full sun or light shade and is very is drought-resistant. It also prefers occasional water, especially during…

Stenocereus thurberi

Organ Pipe Cactus

This distinctive night-blooming cactus grows in a columnar, tree-like form to twenty feet tall or more, producing multiple stems that…

The plant is hardy to twenty-five degrees Fahrenheit, and the tips of this cactus should be protected on cold nights…

Stetsonia coryne

Argentine Toothpick Cactus

The distinctive, night-blooming cactus grows thirty feet tall and ten to fifteen feet wide. Its columnar, grayish-green stems are approximately…

The Argentine toothpick is hardy to eighteen degrees Fahrenheit. It likes full sun, reflected heat and sandy, well-draining soil. The…