Few ground covers combine brilliant flowers, succulent foliage, and an ability to handle dry conditions quite like ice plants. When happy, these low-growing perennials spread into colorful mats covered with daisy-like flowers in shades of pink, purple, yellow, orange, red, and white.
Hardy ice plants in the genus Delosperma are particularly useful in sunny, dry gardens where many traditional perennials struggle. Their fleshy leaves store moisture, their spreading stems soften the edges of rocks and walls, and their vivid flowers can brighten the garden for weeks or even months.
The secret to growing them successfully is surprisingly simple: give them lots of sunshine and exceptionally good drainage, then resist the temptation to pamper them with too much water or fertilizer.
There is one complication worth understanding before you plant. “Ice plant” is a common name used for several different plants, and they are not all equally hardy—or equally desirable in every region. Knowing which ice plant you have is the first step toward growing it well.
🌸 What Is an Ice Plant?
For home gardens in colder and temperate climates, the name ice plant commonly refers to species and hybrids of Delosperma, a group of low-growing succulent perennials native primarily to southern Africa.
These plants typically form spreading mats only a few inches tall. Their fleshy leaves are designed to tolerate periods of dryness, while brightly colored flowers resemble miniature daisies.
The curious name “ice plant” comes from the glistening surface found on the foliage of some species. Tiny translucent structures can catch the light and give the leaves a sparkling, almost frosted appearance.
Hardy Delosperma should not be confused with every other plant sold or described as ice plant. That distinction becomes particularly important in coastal regions.
⚠️ Not All Ice Plants Are the Same
The common name ice plant is also used for species of Carpobrotus, including Carpobrotus edulis and Carpobrotus chilensis.
These are the thick, sprawling succulents commonly seen covering coastal slopes and bluffs in parts of California and other mild-climate regions.
They are very different garden plants from the compact hardy Delosperma commonly sold for rock gardens.
In California, Carpobrotus edulis is rated as a highly invasive plant by the California Invasive Plant Council, while Carpobrotus chilensis is also considered invasive. Both can form dense mats in coastal habitats and displace native vegetation.
Before buying anything labeled simply “ice plant,” check the botanical name.
For the typical drought-tolerant perennial garden discussed in this guide, look primarily for Delosperma species and cultivars suited to your climate.
💜 Delosperma cooperi
Delosperma cooperi is one of the most familiar hardy ice plants.
It produces vivid magenta-purple flowers over a low mat of narrow, succulent green leaves. Plants usually remain only a few inches tall while spreading outward to create a colorful ground cover.
It is especially attractive spilling over rocks, edging a dry border, filling spaces in a rock garden, or softening the top of a retaining wall.
Hardiness can vary with growing conditions, and cold wet soil is particularly dangerous. Even where winter temperatures are theoretically suitable, plants may fail if their roots remain soggy.
💛 Delosperma nubigenum
Delosperma nubigenum is another useful hardy species, known for cheerful yellow flowers and a low spreading habit.
It is particularly valued in colder gardens because some forms can tolerate colder winter temperatures than many other ice plants.
The foliage can also develop attractive reddish or bronze tones during cool weather.
Like other hardy ice plants, it still requires excellent drainage. Cold itself is not always the biggest winter threat; cold combined with wet soil can be much harder on the plant.
🌈 Hybrid Ice Plants
Modern nurseries offer many hybrid Delosperma selections in colors extending well beyond the traditional purple and yellow forms.
You may find flowers in peach, coral, raspberry, orange, white, bicolors, and combinations with contrasting centers.
Some cultivars have also been selected for improved cold hardiness, longer flowering seasons, or compact growth.
When choosing a variety, read the plant label carefully rather than assuming every Delosperma has identical hardiness.
A cultivar bred for a cold inland garden may perform very differently from one intended for a mild coastal climate.
☀️ How Much Sun Do Ice Plants Need?
Hardy ice plants perform best in full sun.
Aim for at least six hours of direct sunlight a day, with more being ideal in many climates.
Strong light helps plants maintain compact growth and encourages abundant flowers. In too much shade, the stems may become stretched or sparse and flowering can decline dramatically.
A sunny south- or west-facing slope, rock garden, dry border, or exposed bed is often an excellent location.
These are plants that generally prefer the bright, hot places where thirstier garden flowers may struggle.
🪨 Drainage Is the Most Important Requirement
If you remember only one thing about growing ice plants, make it this: their roots cannot tolerate persistently wet soil.
Hardy ice plants are adapted to dry, rocky conditions. They perform beautifully in sandy, gravelly, shallow, or lean soils as long as excess water drains away quickly.
Heavy clay can be much more difficult.
Water sitting around the roots encourages rot, particularly during cool weather when the plant is using very little moisture.
A site that remains wet for hours or days after heavy rain is not a good place for an ice plant without significant drainage improvement.
🌱 What Is the Best Soil for Ice Plants?
The ideal soil is loose, gritty, and fast draining.
Sandy or gravelly soil often works beautifully. Rocky soil that would frustrate many other flowers may actually suit ice plants extremely well.
Rich garden soil is not necessary.
In fact, heavily amended, moisture-retentive soil can create more problems than it solves.
If your garden naturally has heavy clay, planting on a raised mound, slope, rock wall, or in a container may be easier than trying to transform an entire bed.
The goal is not fertile soil that holds water beautifully. The goal is soil that lets water leave.
🏡 How to Plant Ice Plants in the Garden
Spring is an excellent time to plant hardy ice plants in climates with cold winters because it gives the roots an entire growing season to become established before freezing weather arrives.
Dig a hole only slightly wider than the root ball and no deeper than the plant was growing in its nursery pot.
Avoid burying the crown deeply.
Set the plant in place, backfill with the surrounding soil, and water enough to settle the roots.
If you are creating a ground cover, allow room for the plants to spread rather than packing them tightly together on planting day.
Individual varieties vary, but many eventually spread a foot or more across.
💧 How Often Should You Water Ice Plants?
Newly planted ice plants need more consistent moisture than established ones.
During the first growing season, water when the soil has dried substantially rather than following an automatic daily schedule.
Once established, Delosperma is notably drought tolerant.
Let the soil dry between waterings and provide deeper, less frequent irrigation rather than keeping the surface constantly damp.
In many established landscapes, rainfall may supply much of the water plants need.
Always adjust for your climate, soil, temperature, and rainfall rather than watering simply because a certain number of days have passed.
🚿 How to Tell If You Are Overwatering
An ice plant struggling from too much moisture may become soft, yellow, translucent, or mushy around the stems and crown.
Growth may decline even though the soil remains wet.
In severe cases, roots and stems rot and the plant collapses.
If this happens, stop watering and assess the drainage.
Simply allowing the surface to dry for one afternoon will not solve a site that remains saturated below ground.
Plants repeatedly affected by wet soil may need to be moved to a raised or much better-drained location.
🏜️ Don’t Confuse Drought Tolerance With Never Needing Water
A mature ice plant can tolerate dry conditions remarkably well, but drought tolerance does not mean a newly transplanted plant should be abandoned without water.
Roots need time to grow into the surrounding soil.
Containers also dry much faster than garden beds and may require occasional irrigation even when established plants in the landscape do not.
Watch the plant and soil rather than relying on the succulent leaves alone.
A little thoughtful watering during prolonged drought can keep plants looking fuller and flowering better without creating waterlogged conditions.
🌿 Do Ice Plants Need Fertilizer?
Usually, very little.
Hardy ice plants are adapted to relatively lean conditions and generally do not need routine heavy feeding.
Excess fertilizer can encourage lush, weak growth without providing any real benefit and may work against the compact habit that makes these plants attractive.
If the soil is extremely poor and the plants show weak growth despite receiving enough sun and appropriate water, a modest amount of fertilizer may be useful.
For most garden situations, however, sunshine and drainage matter far more than feeding.
🪴 Growing Ice Plants in Containers
Ice plants can be excellent container plants, particularly where garden soil is naturally heavy.
Choose a pot with generous drainage holes and use a fast-draining potting medium suitable for succulents.
Do not let the container sit permanently in a saucer full of water.
Terra-cotta pots can be particularly useful because they allow the potting mix to dry relatively quickly, although any container with excellent drainage can work.
Set the pot somewhere sunny and allow the mix to dry substantially between waterings.
Trailing varieties look especially attractive near the rim of a container where their stems can spill over the side.
❄️ Winter Can Be the Hardest Season
It is easy to assume that summer drought is the difficult part of growing a succulent, but hardy ice plants often face their greatest challenge in winter.
Cold, saturated soil can be more destructive than cold air alone.
A plant may survive low temperatures successfully in one garden while dying at a similar temperature elsewhere because the second location remains wet through winter.
This is why raised beds, slopes, gravel gardens, crevices, and other rapidly draining locations are so useful in cold climates.
Good winter drainage can be the difference between a perennial that returns for years and one that disappears after its first wet winter.
🌡️ Check the Hardiness of Your Specific Variety
Do not assume one USDA hardiness zone applies to every ice plant.
Delosperma cooperi, for example, is commonly grown across approximately Zones 6 through 10, although local conditions influence survival.
Delosperma nubigenum can tolerate colder conditions and is often listed into Zone 5.
Hybrids vary considerably.
When buying a plant, check the label for the specific species or cultivar and compare its hardiness rating with your location.
Even then, remember that drainage, winter moisture, snow cover, exposure, and microclimate can influence whether a plant survives.
🧱 Plant Ice Plants in a Rock Garden
Few settings suit hardy ice plants better than a sunny rock garden.
Their low-growing foliage threads naturally around rocks, while the bright flowers provide a dramatic contrast against stone.
Rock gardens also tend to offer the sharply drained conditions these plants prefer.
Position ice plants near the front or along an edge where they will not be overwhelmed by taller perennials.
Combining several flower colors can create a patchwork effect, while repeating one variety throughout the garden gives a more unified appearance.
🏔️ Let Them Spill Over Walls
A retaining wall or raised stone border can provide almost ideal growing conditions.
Plant ice plants near the upper edge and allow their stems to trail naturally over the rock.
Water drains away quickly, the plants receive plenty of reflected heat and sunshine, and the flowers soften the hard lines of the stone.
This is especially attractive with magenta, orange, or yellow varieties, which can create vivid cascades against gray or tan masonry.
Make sure the planting pocket contains enough soil for roots even though the surrounding environment is rocky.
🌱 Use Ice Plants as Ground Cover
Hardy Delosperma can create a low carpet over sunny areas with dry soil.
They are particularly useful at the front of beds, between larger drought-tolerant perennials, on dry slopes, or over gravelly patches where conventional lawn grass would be inconvenient.
They are not, however, a substitute for turf in areas receiving frequent foot traffic.
The succulent stems can be damaged by repeated walking.
Think of ice plant as a decorative flowering ground cover rather than a living walkway.
🌾 Good Companion Plants for Ice Plants
The easiest companions are plants that enjoy the same basic conditions: plenty of sun and soil that does not remain wet.
Sedums, hens and chicks, creeping thyme, lavender, ornamental grasses, dianthus, yarrow, and other drought-tolerant perennials can make attractive partners depending on your climate.
The key is matching cultural requirements.
A moisture-loving plant placed beside an ice plant creates an awkward situation because the watering schedule that makes one happy may harm the other.
Design with water needs in mind as well as flower color.
🌼 When Do Ice Plants Bloom?
Bloom time varies by species, cultivar, and climate.
Many hardy Delosperma begin flowering in late spring or early summer and can continue producing flowers through much of the warm season.
Some hybrids are particularly long blooming.
The flowers frequently open most fully in strong sunshine and may close somewhat during cloudy weather or toward evening.
A healthy plant in full sun can become so covered with flowers that much of the succulent foliage temporarily disappears beneath the color.
✂️ Do You Need to Deadhead Ice Plants?
Deadheading is generally not essential for the basic health of hardy ice plants.
Plants can continue looking attractive without removing every spent flower.
If a particular cultivar becomes untidy after blooming, you can lightly remove faded material, but there is little reason to turn maintenance into a daily task.
The same restraint applies to pruning.
Ice plants usually need much less grooming than traditional flowering perennials.
Their naturally low, spreading form is part of their appeal.
🌿 When Should You Prune Ice Plants?
If plants become sparse, woody, or extend beyond their intended area, trim them lightly when active growth is beginning.
Avoid severe pruning into old material unless you know the specific plant responds well.
Removing damaged or winter-killed stems in spring can improve appearance and allow new growth to fill the space.
A spreading plant can also be shortened around paths or neighboring plants when necessary.
Remember that the goal is usually to maintain the natural mat-forming habit rather than shape it into a formal mound.
🌱 How to Propagate Ice Plants From Cuttings
Stem cuttings are one of the easiest ways to make more hardy ice plants.
Choose a healthy stem and cut a short section with clean scissors or pruners.
Remove foliage from the portion that will be inserted into the growing medium and place the cutting in a gritty, rapidly draining mix.
Keep the medium lightly moist while roots develop, but avoid saturating it.
Once the cutting has established a healthy root system, gradually treat it more like a mature ice plant.
Propagation also gives you a useful backup plant if you garden near the colder edge of a cultivar’s hardiness range.
🌱 Can You Grow Ice Plants From Seed?
Many Delosperma species can also be grown from seed.
Seed-grown plants may take longer to develop into substantial mats than nursery starts or cuttings, and hybrids may not produce offspring identical to the parent.
If exact flower color or growth habit matters, vegetative propagation is more predictable.
Growing from seed can still be enjoyable when you want many plants economically or simply enjoy starting perennials yourself.
Use a free-draining seed-starting medium and avoid keeping seedlings excessively wet as they develop.
🐛 Common Ice Plant Problems
Hardy ice plants tend to have relatively few serious pest problems when grown in appropriate conditions.
Aphids or mealybugs may occasionally appear, particularly on stressed plants or protected container specimens.
Inspect unusual growth before reaching for a pesticide.
A strong spray of water or targeted treatment may be enough for a minor problem, depending on the insect.
More often, the major problem is not an insect at all.
It is moisture.
Root and crown rot caused by persistently wet conditions is far more likely to ruin an ice plant planting than a lack of intensive pest control.
🌧️ Why Did My Ice Plant Die Over Winter?
If a supposedly hardy ice plant disappears during winter, do not assume the hardiness label was necessarily wrong.
Look at the planting location.
Did melting snow collect there? Does the soil remain wet after winter rain? Is the plant growing beside a downspout? Is heavy clay trapping moisture around the crown?
A slightly elevated site with gravelly soil may allow the same cultivar to survive beautifully just a few feet away.
Winter survival often depends on the combination of temperature and moisture rather than temperature alone.
🌤️ Why Isn’t My Ice Plant Blooming?
Too little sunlight is one of the first possibilities to consider.
A plant receiving only a few hours of direct sun may remain alive but produce relatively few flowers.
Excessive fertilizer can also encourage foliage at the expense of flowering.
Newly planted specimens may simply need time to establish.
Make sure the plant receives abundant sunshine, avoid overfeeding, and provide suitable dry, well-drained conditions.
Healthy plants generally flower most enthusiastically when they are not being overly pampered.
🍂 Why Is the Center of the Plant Dying Out?
Older spreading mats can occasionally become thin or woody in the center while vigorous stems continue growing around the edges.
This can be a natural consequence of aging, but wet conditions or poor air movement may contribute.
If the outer growth remains healthy, take cuttings or root younger pieces and use them to renew the planting.
Removing deteriorated sections can also create space for fresh plants.
Regularly propagating favorite varieties is useful insurance, particularly in climates where winter conditions can be unpredictable.
🪨 Consider Gravel Instead of Moisture-Holding Mulch
A thick layer of moisture-retentive organic mulch pressed around ice plant stems can keep the crown wetter than necessary.
In very dry gardens and rock gardens, gravel or small stone often makes a more compatible surface treatment.
It allows water to move through quickly while complementing the plant’s natural appearance.
Whatever mulch you use, keep it from piling directly against the crown.
The goal is to protect the planting area without trapping persistent moisture against succulent stems.
💦 Ice Plants Work Well in Water-Wise Gardens
Once established in suitable soil, hardy ice plants can be valuable components of xeriscapes and other water-conscious landscapes.
Their succulent foliage allows them to tolerate dry periods, and their low growth can cover exposed ground without the irrigation required by many traditional flowering ground covers.
They work particularly well when grouped with other plants that prefer deep, infrequent watering.
A drought-tolerant garden does not have to be a landscape of beige gravel and cactus.
Ice plants prove that water-wise planting can be exceptionally colorful.
🐝 Flowers Add Life to the Dry Garden
The vivid flowers are not attractive only to people.
Flowering Delosperma can be visited by bees and other insects seeking floral resources.
Including a variety of flowering plants with overlapping bloom periods can make a dry garden more useful to pollinators throughout the growing season.
Avoid unnecessary broad-spectrum pesticide use around flowering plants.
A water-wise garden can support wildlife while still requiring relatively little irrigation, especially when plants are chosen appropriately for the local climate.
⚠️ Be Careful With Ice Plants in Invasive Regions
The distinction between Delosperma and Carpobrotus deserves repeating because the plants can have very different ecological impacts.
Along the California coast, Carpobrotus edulis has spread extensively into dunes, bluffs, coastal scrub, and other natural habitats. Stem fragments can root and form new plants, allowing dense mats to expand beyond original landscaping.
If you live in a region where a particular ice plant is invasive, choose a noninvasive alternative recommended by local Cooperative Extension programs, native-plant organizations, or invasive-species authorities.
A plant’s performance in the garden should never be considered separately from what it may do after escaping beyond the property line.
🌸 Choosing the Right Ice Plant for Your Garden
Begin with your climate rather than flower color.
Check the botanical name and hardiness of the plant, then make sure your garden can provide the drainage it needs.
After those requirements are satisfied, choose the colors and growth habits you enjoy.
A cold-climate gardener might prioritize particularly hardy Delosperma selections. Someone gardening in a mild but rainy climate may be more concerned with winter drainage. A container gardener can select compact varieties and control the soil much more easily.
Choosing the right plant for the location is always easier than trying to force the wrong plant to adapt.
🌞 The Simple Formula for Healthy Ice Plants
Hardy ice plants do not ask for complicated care.
Give them as much sunshine as possible. Plant them in soil where water drains away quickly. Water them while they are becoming established, then allow the soil to dry between waterings. Avoid excessive fertilizer and protect the roots from soggy winter conditions.
Those few principles solve most ice plant problems before they begin.
Placed in the right garden, these small succulents can spread into vivid carpets of flowers while asking remarkably little in return.
Whether they are spilling over a stone wall, filling the gaps in a rock garden, edging a sunny path, or brightening a container, hardy Delosperma offers an appealing combination of resilience and color.
Sometimes the best way to care for a plant is to understand what it does not need.
For ice plants, that means less water, less fertilizer, less fuss—and a great deal more sunshine.
🔗 Related Articles
- How to Grow Violas: Planting, Care & Tips for Colorful Blooms
- Calibrachoa Care Guide: Sun, Watering, Fertilizer, Pruning & More
- Anemone Flower Care Guide: How to Grow Beautiful Anemones
- September Planting Guide: Embrace the Fall Gardening Season Across the US
📚 Sources & Further Reading
- North Carolina Extension Gardener Plant Toolbox — Delosperma
- North Carolina Extension Gardener Plant Toolbox — Delosperma cooperi
- North Carolina Extension Gardener Plant Toolbox — Delosperma nubigenum
- Missouri Botanical Garden — Delosperma cooperi
- Colorado State University Extension — Rock Garden Plants
- California Invasive Plant Council — Carpobrotus edulis
- California Invasive Plant Council — Carpobrotus chilensis
