Brilliant Red Succulent Groundcover for Phoenix Landscapes

Red Ice Plant (Drosanthemum speciosum) is one of the most vivid flowering succulents you can grow in the Phoenix Valley. This mounding, shrubby ice plant from South Africa's Western Cape produces masses of brilliant orange-red, daisy-like flowers about 2 inches across, blooming heavily in spring and into early summer. Its small, glistening succulent leaves form a dense evergreen mound that chokes out weeds and requires almost zero maintenance once established. Whether you're covering a hot slope in Scottsdale, filling a median in Mesa, or adding a splash of color to a Chandler rock garden — Red Ice Plant delivers reliable, drought-proof beauty year after year.

Red Ice Plant Details

Attribute	Detail
Scientific Name	Drosanthemum speciosum
Common Names	Red Ice Plant, Royal Dewflower, Dewflower
Mature Height	18–24 inches (low, shrubby mound)
Mature Width	24–36 inches per plant (mounds knit into dense cover)
Growth Rate	Moderate; fills in over one to two seasons
Sun	Full sun (6+ hrs). Needs sharp drainage in Phoenix heat.
Water	Low once established. Drought-tolerant; give an occasional deep summer drink.
USDA Zones	9b–11 (Phoenix is Zone 9b–10a)
Soil	Well-draining. Thrives in sandy, rocky Arizona soils. Tolerates caliche.
Foliage	Evergreen succulent: small, cylindrical green leaves covered in glistening dew-like cells
Bloom Color	Brilliant orange-red with a dark center, mainly spring into early summer

Red Ice Plant Uses in Phoenix Landscapes

Groundcover & Mass Planting

Red Ice Plant knits into a dense, weed-suppressing cover of succulent foliage with seasonal bursts of orange-red blooms. Plant 24 inches apart for fast coverage. Ideal for large areas, commercial landscapes, and HOA common areas in Scottsdale, Gilbert, and Tempe.

Slope & Erosion Control

The dense root system and spreading habit make Red Ice Plant excellent for stabilizing slopes, berms, and retention basin edges. It handles sunny exposures on very little supplemental water as long as the soil drains fast.

Rock Garden & Xeriscape

Tuck Red Ice Plant into rock gardens, along dry creek beds, and around decomposed granite pathways. The succulent texture and vibrant blooms pop against gravel and stone. Pair with Red Spike Ice Plant and Yellow Gazania for a colorful, very low-water groundcover palette.

Border & Pathway Edging

At 18–24 inches tall, Red Ice Plant makes a colorful low border along walkways and garden beds. The evergreen foliage stays neat year-round.

Best Time to Plant Red Ice Plant in Phoenix

Fall (October–November) is ideal. Spring (February–April) is the second-best window. Avoid peak summer planting.

How to Plant Red Ice Plant

1. Dig a shallow hole — Just deep enough for the root ball. Ice plants have shallow roots.
2. Ensure drainage — Break through caliche. Succulents rot in standing water.
3. Backfill with native soil — No amendments needed.
4. Spacing — 24 inches apart for groundcover; 18 inches for faster coverage.
5. Use gravel mulch — Avoid bark mulch which retains too much moisture around succulent stems.

Watering Red Ice Plant in Phoenix

First Year Watering Schedule

Weeks 1–2: Every 3–4 days, light. Month 1–3: Every 7–10 days. After Year 1: Monthly or less. Overwatering is the #1 cause of ice plant failure in Phoenix.

Drip Irrigation

One 0.5-GPH emitter per plant during establishment. Reduce or eliminate once established.

How fast does Red Ice Plant spread in Phoenix?

Moderately. Each plant spreads 24–36 inches wide in one to two growing seasons. It's one of the most cost-effective groundcovers for large commercial and residential landscapes.

Is Red Ice Plant truly drought tolerant?

Yes. It stores water in its succulent leaves, so once established it needs only an occasional deep watering in the Phoenix summer and can get by on rainfall in the cool season.

What's the difference between Red Ice Plant and Red Spike Ice Plant?

Red Ice Plant (Drosanthemum speciosum) forms a shrubby mound of small, glistening leaves with orange-red flowers in spring and early summer. Red Spike (Cephalophyllum) has upright, finger-like leaves and blooms primarily in winter-spring. Both are excellent succulent groundcovers for Phoenix. Three Timbers carries both.

You May Also Like

Red Spike Ice Plant — Another red-flowering succulent groundcover with winter-spring blooms.

Red Gazania — Bold red daisy-like flowers on a sun-loving groundcover.

Yellow Gazania — Bright yellow blooms that pair perfectly with red ice plant.

Orange Gazania — Warm orange groundcover blooms for desert color palettes.

Lantana — A spreading flowering shrub for borders and mass plantings.

How Many Red Ice Plant Do I Need?

Each plant spreads 24 to 36 inches wide, so 24 inch on-center spacing knits into solid cover within one to two Phoenix growing seasons. Use the table below to estimate plant counts:

Area to Cover	Plants Needed (24 in o.c.)
25 sq ft	6
50 sq ft	13
100 sq ft	25
200 sq ft	50

For faster coverage on a slope or median, tighten to 18 inch spacing and add roughly 75 to 80 percent more plants.

Red Ice Plant Season-by-Season in Phoenix

• Spring (Feb–Apr): Peak bloom begins, with masses of orange-red daisy flowers over the glistening green foliage. A strong second planting window.
• Summer (May–Sep): Bloom tapers off by early summer and the mound rests through the heat; give an occasional deep soak in dry spells. Monsoon rain (Jul–Sep) is ample; cut the drip way back in wet spells, since overwatering is the number-one cause of ice plant failure here.
• Fall (Oct–Nov): Prime planting season; foliage stays full and tidy as temperatures ease.
• Winter (Dec–Jan): Holds as an evergreen mound through Valley winters. It is frost-tender below about 25°F, so cover it during hard freezes in colder outlying yards.

At a Glance

✔ Evergreen   ✔ Drought-Tolerant   ✔ Heat-Tolerant   ✔ Pool-Friendly (Low-Litter)   ✔ Pollinator-Friendly   ✔ Low-Maintenance

Plant It With

• Red Spike Ice Plant: a winter-spring red bloomer that extends the ice-plant color season alongside this one.
• Purple Ice Plant: a pink-to-purple Drosanthemum ice plant for a two-tone succulent carpet.
• Rocky Point Ice Plant: a yellow-flowered Malephora ice plant for a multi-color bloom drift in full sun.
• Purple Trailing Lantana: a spreading purple bloomer that contrasts the red-orange flowers in mass plantings.

Is Red Ice Plant Right for Your Yard?

Red Ice Plant is a top pick for full-sun slopes, medians, rock gardens, and large low-water mass plantings with sharp drainage, where it blooms hard in spring on very little irrigation. It is not a fit for shade or for heavy, poorly drained soil that holds water, where the shallow succulent crown will rot; overwatering, not heat, is what kills it here.