Dichondra seeds need warm soil, consistent moisture, and patience to become the dense, carpet-like ground cover you’re after. Unlike turfgrass, which sends up vertical blades, dichondra spreads by creeping stems that root at each node, gradually knitting together into a low mat of small, kidney-shaped leaves. The process from seed to full coverage is slower than most people expect, but the result is a soft, nearly maintenance-free surface that thrives in mild climates and tolerates light foot traffic.
Pick the Right Species Before You Buy Seed
Most dichondra seed sold commercially is labeled as Dichondra repens, but the plants that come up from those packets are remarkably uniform and distinct from wild populations of that species. Research comparing commercial seed from California and South Carolina with wild New Zealand populations found the commercial plants were consistent in their traits and different from any species found in a truly native habitat.1New Zealand Journal of Botany. The cultivated dichondra In practice, the two names you’ll encounter at garden centers are Dichondra repens and Dichondra micrantha. The distinction matters less than you might think for planting purposes: both spread by stolons, both prefer warmth, and both form a ground-hugging mat. D. micrantha tends to have slightly smaller leaves and has been the variety used in several long-term ground cover trials in orchards and landscapes.2New Zealand Plant Protection. Assessing ground covers in a newly planted apple orchard If your seed packet says “dichondra” without a species name, you’re almost certainly getting the cultivated form that has been selected for lawn and ground cover use.
Timing Your Planting
Dichondra is a warm-season plant, and its seeds need soil temperatures consistently above about 65°F (18°C) to germinate reliably. In most of the southern United States, that window opens in late spring and stays open through early summer. In mild coastal climates like southern California, you can push the window earlier, sometimes into March, because nighttime temperatures rarely dip low enough to stall germination. If you live somewhere with hot summers, aim for late spring rather than midsummer: seedlings that get established before the peak heat of July have deeper root systems and handle dry spells better.
Fall planting is possible in frost-free areas but risky anywhere that gets even occasional freezes. Dichondra is classified as a warm-season species, and chilling and freezing stress significantly limit its cultivation and yield.3Industrial Crops and Products. Nitric oxide production, sugar metabolism, and antioxidant capacity related to differential cold tolerance and recovery between two Dichondra repens genotypes Young seedlings are especially vulnerable because they haven’t built up the carbohydrate reserves that help established plants survive a cold snap. If you’re in USDA zones 9 through 11, fall sowing can work. In zone 8 or cooler, stick to spring.
Preparing the Planting Area
Dichondra seeds are tiny, roughly the size of coarse sand grains. That small size means they can’t push through a thick crust of soil or compete with large clods. You want a smooth, fine-textured seedbed. Start by removing existing weeds, either by hand, with a hoe, or with a non-selective herbicide applied several weeks before sowing. Research on dichondra establishment in orchards found that an initial herbicide treatment before planting helped dichondra form a dense ground cover with good weed suppression, while plots without weed control struggled.2New Zealand Plant Protection. Assessing ground covers in a newly planted apple orchard
Once weeds are cleared, rake the surface to break up any compacted patches. You don’t need to till deeply; dichondra roots are relatively shallow, and the stolons do most of the spreading work at the surface. If your soil is heavy clay, work in a thin layer of compost (half an inch or so) to improve surface drainage. Sandy soils benefit from compost too, but for the opposite reason: it helps retain moisture around the seeds during germination. The goal is a crumbly top layer, free of debris, that seeds can settle into and maintain contact with damp soil.
Sowing the Seeds
Scatter dichondra seed at a rate of roughly one to two pounds per 1,000 square feet. This is denser than most lawn grass seeding rates, but dichondra seeds are individually smaller and germinate unevenly, so the higher rate compensates for losses. For small areas, mix the seed with dry sand at about a 1:4 ratio (one part seed, four parts sand) before broadcasting. The sand adds volume, making it much easier to spread the seed evenly by hand instead of ending up with thick clumps in some spots and bare patches in others.
After spreading, lightly rake the seed into the top quarter-inch of soil. Dichondra seeds need light to germinate, so burying them too deep is the single most common mistake. If you can still see some seeds on the surface after raking, that’s fine. Roll the area with a light lawn roller or simply walk over it to press seeds into firm contact with the soil. That soil-to-seed contact is what keeps moisture around the seed coat long enough for germination to begin.
For larger areas, a drop spreader set to a fine opening works better than a broadcast spreader, which tends to throw the lightweight seeds unevenly. Make two perpendicular passes at half the total seeding rate to get the most uniform coverage.
Watering During Germination
This is the stage where most dichondra plantings either succeed or fail. The seeds need the top layer of soil to stay consistently moist, not soaking wet, for roughly two to three weeks. In warm weather, that usually means watering lightly two to three times per day: once in the morning, once around midday, and once in the late afternoon. Each session should be brief, just enough to wet the surface without creating puddles or runoff that displaces the seeds.
Once you see green sprouts emerging (typically 7 to 14 days after sowing, depending on soil temperature), you can gradually reduce watering frequency. Shift to once daily for the next couple of weeks, then transition to deeper, less frequent irrigation as the plants develop roots. Overwatering established dichondra encourages fungal problems, so the goal is to wean the planting off frequent irrigation as quickly as the root system allows.
How Long Until Full Coverage
This is where expectations need adjusting. Dichondra from seed is not a fast ground cover. Establishment trials comparing different planting methods found that while plugs allowed more rapid establishment, all methods, including seeds, eventually gave total ground cover after about 12 months.4New Zealand Plant Protection. Establishment techniques for dichondra ground covers in orchards A full year to complete coverage sounds discouraging, but keep in mind that the visual impression improves much sooner. By three to four months, a well-watered seeding typically looks green and presentable even if gaps remain between spreading stolons.
If you want faster results, consider combining seeds with plugs. Plant plugs on roughly 12-inch centers across the area and broadcast seed between them. The plugs serve as anchor points that fill in quickly, while the seed fills the gaps over time. This hybrid approach costs more but can cut visible bare ground in half within the first few months.
Managing Weeds While Dichondra Fills In
The biggest practical challenge with dichondra ground cover is the establishment window, that long stretch of months where the planting hasn’t yet formed a closed canopy and weeds take advantage of every open patch of soil. Dichondra’s dense mat is an effective weed suppressor once it’s fully established, but getting to that point requires active weed management.
Hand-pulling is the safest option for young dichondra. Most broadleaf herbicides will damage or kill dichondra since it is itself a broadleaf plant, not a grass. Pre-emergent herbicides can help prevent new weed seeds from sprouting, but you need to be selective: some pre-emergents will also suppress dichondra seed germination. If you’re combining pre-emergent weed control with seeding, apply the pre-emergent first, wait the recommended interval (usually six to eight weeks), and then sow the dichondra. Alternatively, sow the dichondra first, allow it to establish for several months, and then apply a pre-emergent to block the next flush of weeds.
Grass weeds that invade a dichondra planting are easier to deal with chemically. Selective graminicides (grass-specific herbicides) can be applied over dichondra without harming it, since dichondra is a dicot and these products target monocots. Check labels for compatibility, but this is one area where dichondra’s broadleaf identity actually works in your favor.
Sunlight, Shade, and Site Selection
Dichondra tolerates a wider range of light conditions than most lawn grasses. It performs well in full sun in mild climates, but in hot inland areas with intense summer sun, it does better with some afternoon shade. Partial shade, the kind you get under a high canopy of deciduous trees or on the east side of a building, is often the sweet spot. In deep shade with less than three or four hours of any direct or bright indirect light, dichondra thins out and becomes leggy rather than forming the dense mat you want.
The plant has been tested as an under-tree ground cover in commercial orchards with mixed results. In apple orchard trials, dichondra provided good weed-suppressing ground cover for the first several years but slowly regressed, eventually giving way to harder-to-control weed species over a six-season period.5New Zealand Plant Protection. Long term ground cover options for apple orchards That regression was partly due to increasing shade as the orchard canopy matured and partly due to competitive pressure from more aggressive weeds. In a home landscape where you’re not dealing with commercial orchard conditions, the takeaway is that dichondra under trees works well as long as the canopy isn’t so dense that it blocks most light.
Water Needs After Establishment
Established dichondra is moderately drought tolerant compared to cool-season lawn grasses, but it’s not a xeriscape plant. It wilts visibly when stressed, and in prolonged dry spells without irrigation, it can die back to the roots or die entirely. Research evaluating drought tolerance across 33 different dichondra genotypes found wide variation: some genotypes survived over 46 days without water, while the least tolerant ones died completely within that same period.6Maximum Academic Press. Evaluation of genetic diversity and drought tolerance among thirty-three dichondra (Dichondra repens) genotypes The commercial seed you buy is likely a single cultivar, so you won’t know exactly where it falls on that spectrum.
As a practical rule, plan to irrigate dichondra about once or twice a week during dry summer months, enough to keep the soil consistently moist in the top few inches. It uses less water overall than a traditional lawn because it doesn’t need mowing (which stresses grass and increases its water demand), and its low growth habit reduces evapotranspiration. But “lower than a lawn” is not the same as “no supplemental water.” In arid climates, drip irrigation or low-output sprinklers on a timer are the most efficient way to keep dichondra healthy without waste.
Mowing and Maintenance
One of the main appeals of dichondra as a ground cover is that it rarely needs mowing. The plant naturally stays between one and two inches tall. Some people never mow it at all; others give it a light trim once or twice during the growing season to keep the surface even and remove any flowering stems, which are small and inconspicuous but can make the surface look untidy. If you do mow, set the mower as high as it goes. Scalping dichondra is harmful because the plant’s growing points are close to the surface, and cutting too low removes the leaves it needs to photosynthesize and spread.
Fertilization needs are modest. A light application of a balanced fertilizer once in spring and once in midsummer is typically sufficient. Over-fertilizing encourages lush, soft growth that’s more vulnerable to fungal disease and may actually slow lateral spreading because the plant puts energy into leaf size rather than stolon length. If the dichondra looks healthy and green, leave it alone.
Cold Limits and Overwintering
Dichondra is reliably evergreen in frost-free climates. In areas that experience occasional light frosts, it goes dormant and turns brown but typically recovers from the roots once warm weather returns. Hard freezes, sustained temperatures below about 25°F (-4°C), can kill it outright. The plant’s sensitivity to cold is well documented: both chilling and freezing stress limit where dichondra can be grown commercially.3Industrial Crops and Products. Nitric oxide production, sugar metabolism, and antioxidant capacity related to differential cold tolerance and recovery between two Dichondra repens genotypes Different genotypes show different levels of cold tolerance, but the commercial seed available to home gardeners hasn’t generally been selected for cold hardiness.
If you’re in a borderline climate, zone 8 for instance, you can improve winter survival with a few strategies. A light mulch of straw or shredded leaves applied before the first frost insulates the crowns. Avoiding late-season nitrogen fertilization helps too, because soft new growth is the most frost-vulnerable tissue. Some gardeners in transitional climates treat dichondra as a warm-season annual ground cover, re-seeding each spring, though this obviously defeats much of the low-maintenance appeal.
Competition with Other Plants
Dichondra plays well with stepping stones, pavers, and rock gardens but less well with aggressive plants. Its stolons will weave between flagstones and fill the joints nicely, and it tolerates light foot traffic. But in a mixed planting bed with vigorous perennials or spreading ornamental grasses, dichondra tends to lose ground over time. Orchard research confirmed this dynamic: even where dichondra established a dense mat initially, it was eventually outcompeted by more aggressive species over several seasons.5New Zealand Plant Protection. Long term ground cover options for apple orchards
That said, all ground covers reduced tree growth and fruit yield in the first season compared to bare soil or mulch in those same trials, so the competitive effect runs both ways.2New Zealand Plant Protection. Assessing ground covers in a newly planted apple orchard If you’re planting dichondra near newly established shrubs or young trees, keep a clear zone of several inches around the base of each woody plant for the first year to avoid root competition while everything gets established. Once the trees or shrubs are mature and deeply rooted, dichondra’s shallow root system poses very little threat to them.
Seeds Versus Plugs and Sod
Seeds are the cheapest way to cover a large area with dichondra, but they’re also the slowest. Plugs, small rooted sections planted at intervals, let you skip the germination stage entirely and start with plants that already have functioning root systems. The tradeoff is cost and labor: plugging a large area takes hours of individual planting. Dichondra sod exists but is a niche product, expensive and hard to find outside southern California.
Establishment research found that all three methods, plugs, transplanted strips, and seeds, reached total ground cover within 12 months, but plugs got there fastest.4New Zealand Plant Protection. Establishment techniques for dichondra ground covers in orchards For a home garden, the most practical decision comes down to scale. Seed makes sense for anything over a few hundred square feet. For a small courtyard, patio edge, or pathway infill, plugs give you visible results in weeks instead of months, and the cost difference at small scale is minimal. A combination of both, as mentioned earlier, offers the best of both approaches for medium-sized areas.
Common Mistakes That Stall a Dichondra Planting
A few errors come up again and again with dichondra from seed, and most are avoidable:
- Sowing too deep: Dichondra seeds are surface germinators. Burying them more than a quarter inch puts them below the light they need and delays or prevents sprouting.
- Letting the seedbed dry out: Even one afternoon of dry soil during the first two weeks can kill emerged seedlings. Multiple light waterings per day beat one heavy soaking.
- Planting into weedy soil: Dichondra can’t outcompete established weeds during its slow establishment phase. Clear the area thoroughly before sowing.
- Expecting grass-speed coverage: Turf grasses like perennial ryegrass can fill in within weeks. Dichondra takes months. Adjusting your expectations avoids the temptation to overseed or overwater in frustration.
- Mowing too low: If you mow at all, keep the blade high. Scalping removes the plant’s main photosynthetic tissue and sets it back badly.
Dichondra rewards patience more than any particular gardening skill. If you give it clean soil, consistent moisture at the start, and enough warmth to keep growing, the stolon network will eventually do what it does: spread, root, and fill every available inch of ground with a soft green carpet that looks like it was always supposed to be there.