It’s important to note that all plants profiled below require well-drained soil and, in many cases, some supplemental watering. The amount and frequency of watering depend on several variables, including exposure, temperature and soil. A good rule of thumb is to water 8 inches deep and then allow the soil to dry out before watering again. Succulents need more water in spring, when they are actively growing, and very little in winter.

1. Rock Purslane
(Calandrinia spectabilis)

Gray-green leaves form a dense mound that is transformed by the appearance of magenta flowers spring through fall. The flowers are about 2 inches wide and last one day, with new ones ready to take their place the following day.

For an eye-catching combination, pair rock purslane with pig’s ear (Cotyledon orbiculata),a succulent that produces orange flowers. Rock purslane does best in Mediterranean climates but is suitable as a container plant and can be treated as an annual in colder climates.

Origin: Chile
Where it will grow: Hardy to 20 degrees Fahrenheit, or minus 6.7 degrees Celsius (USDA Zone 9; find your zone)
Water requirement: Low
Light requirement: Full sun or filtered shade
Mature size: 1 foot tall and 3 feet wide; about 3 feet tall when in flower

3. Blue Chalksticks
(Senecio serpens)

The lovely blue-gray and upright 1-inch leaves gradually spread to create an attractive ground cover in frost-free areas. The flowers range from white to chartreuse and appear in summer. Blue chalksticks is ideal for creating color contrast when used next to plants with bright green foliage, such as kangaroo paw (Anigozanthos spp.). It’s a good choice for areas with mild Mediterranean climates. In addition to making a great ground cover, this beauty is often used for erosion control, in containers and as a fire-wise plant.

Here, blue chalksticks grow between Furcraea macdougalii in the background and ‘Elijah Blue’ blue fescue (Festuca glauca ‘Elijah Blue’) in the foreground.

Origin: South Africa
Where it will grow: Hardy to 20 Fahrenheit, or minus 6.7 degrees Celsius (Zone 9)
Water requirement: Low
Light requirement: Full sun or filtered shade
Mature size: 1 foot tall and 2 to 3 feet wide

4. Parry’s Agave
(Agave parryi)

Small- to medium-size agave species are unconventional ground cover choices that are becoming more popular. For example, Parry’s agave, with its very attractive rosette pattern, makes a wonderful water-wise ground cover. Use it next to boulders for great texture contrast. This plant and other smaller agave species work well in arid climates, including low-desert climates, since they can handle the full sun and intense summer heat that may cause succulents better suited for mild Mediterranean climates to struggle.

In this photo, A. parryi var. truncata grows among larger species of agave.

Origin: American Southwest and Mexico
Where it will grow: Hardy to minus 10 to 20 degrees Fahrenheit, or minus 23.3 to 6.7 degrees Celsius (zones 5 to 9, depending on variety)
Water requirement: Low
Light requirement: Full sun or filtered shade
Mature size: 1 foot to 3 feet tall and wide

See how to grow Parry’s agave

5. Upright Myrtle Spurge
(Euphorbia rigida)

Chartreuse flowers, which gradually turn green and then tan, provide welcome color to drought-tolerant landscapes from late winter into spring. The pointed blue-gray leaves are arranged in spirals, which offer decorative texture throughout the year. Upright myrtle spurge can handle temperatures from over 100 degrees Fahrenheit (37.8 degrees Celsius) all the way down to minus 20 degrees Fahrenheit (minus 28.9 degrees Celsius). Plant in groups of three or five alongside boulders and flowering perennials like beardtongue (Penstemon spp.)

Origin: Mediterranean region
Where it will grow: Hardy to minus 20 degrees Fahrenheit, or minus 28.9 degrees Celsius (Zone 5)
Water requirement: Low
Light requirement: Full sun or filtered shade
Mature size: 2 feet tall and 3 feet wide

6. Resin Spurge
(Euphorbia resinifera)

Square light-green stems arranged in clumps give this African native the appearance of a cactus. The sides of the stems are covered in brown spines. Older specimens can grow quite large and look at home next to columnar cactuses. Smaller ones look great next to boulders and drought-tolerant perennials such as desert marigold (Baileya multiradiata) and blackfoot daisy (Melampodium leucanthum).

Here, resin spurge surrounds a Peruvian apple cactus (Cereus repandus), along with soap aloe (Aloe maculata) and its colorful flowers.

Caution: The milky sap is toxic.

Origin: Morocco
Where it will grow: Hardy to 20 degrees Fahrenheit, or minus 6.7 degrees Celsius (Zone 9)
Water requirement: Low
Light requirement: Full sun; can take afternoon shade in low desert
Mature size: 2 to 3 feet tall and 3 to 5 feet wide

7. Royal Dewflower
(Drosanthemum speciosum)

Vibrant flowers in shades of pink, purple and red, depending on the variety, create a colorful carpet in late spring into summer, almost completely covering the foliage. When not in flower, the narrow gray-green leaves add a visually cooling element to the garden. Royal dewflower roots when it comes into contact with bare soil, helping it to spread up to 3 feet wide. Although its low growth habit may lure you to walk on it, avoid the temptation since it doesn’t tolerate foot traffic.

Here, D. speciosum ‘Rosea’ covers a gentle slope.

Origin: South Africa
Where it will grow: Hardy to 20 degrees Fahrenheit, or minus 6.7 degrees Celsius (Zone 9)
Water requirement: Low
Light requirement: Full sun; part shade in the desert
Mature size: 6 to 12 inches tall and 3 feet wide

8. Candelilla
(Euphorbia antisyphilitica)

Narrow, waxy stems, with an upright growth habit, add another dimension to the landscape. Rather than spreading outward close to the ground, new stems are produced along the outer part of the plant, gradually increasing its width while still growing upright. Tiny pale pink flowers bloom along the upper half of the stems in spring. Small leaves may appear and are soon shed. Create a visually appealing design by planting candelillain staggered rows.

Origin: New Mexico, southwestern Texas and Mexico
Where it will grow: Hardy to 10 degrees Fahrenheit, or minus 12.2 degrees Celsius (Zone 8)
Water requirement: Low
Light requirement: Full, reflected sun
Mature size: 1 foot to 2 feet tall and 2 to 3 feet wide

See how to grow candelilla

9. ‘Blue Elf’ Aloe
(Aloe ‘Blue Elf’)

This small aloe species does what most aloes don’t: It thrives in full, reflected sun. Hummingbirds are attracted to the dark orange flowers that appear in late winter and last into early spring, providing needed color in the cool season. ‘Blue Elf’ aloe starts out small but gradually increases in width as it produces new growth. Plant it alongsidegolden barrel cactus (Echinocactus grusonii) for texture and color contrast.

Origin: Aloes are native to South Africa, but the parentage of this hybrid is unknown.
Where it will grow: Hardy to 15 degrees Fahrenheit, or minus 9.4 degrees Celsius (Zone 8)
Water requirement: Low
Light requirement: Full, reflected sun to light shade
Mature size: 1½ feet tall and 2 feet wide

See how to grow ‘Blue Elf’ aloe