Ornamental · Fabaceae

White Clover

Trifolium repens

A low, self-feeding carpet that greens up the yard, keeps the bees happy, and barely asks for a thing.

Light

Full sun

Water

Every 5–⁠10 days

Harvest

40–⁠90 days

Hardiness

USDA 3–⁠10

Pet-safe
White Clover

Overview

White clover's a creeping perennial from the pea family, and you'll find it everywhere from tidy lawns to the edge of the road. It gets around by stolons, stems that run along the ground and root at each node, so a handful of plants soon weave into a dense, low mat. The leaves grow in threes with a pale V-shaped watermark, and round white to pinkish flower heads pop up just above them.

Here's the neat trick: it makes its own fertilizer. Down in the roots it teams up with Rhizobium bacteria to grab nitrogen right out of the air, feeding itself and whatever's growing nearby. That's exactly why folks mix it into lawns, run it as a cover crop, and let it sprawl as living mulch under vegetables and orchard trees.

And it's seriously tough. White clover laughs off cold down to -29°F (-34°C), handles mowing and foot traffic, and greens up a lawn on hardly any water or feeding. The trade-offs? It spreads where you might not want it, and it draws bees right down at ground level while it's blooming.

Care

The short version: give white clover full sun to a little shade and moist, well-drained soil, keep it watered through a bad drought, and skip the fertilizer since it makes its own nitrogen. A quick mow keeps it low, and that's really about it.

Light

White clover's happiest in full sun, but it's totally fine with partial sun and even partial shade. More light means a thicker stand and more flowers, while a shadier spot still fills in, just a touch thinner.

Water

Keep the soil moist but well drained, watering about every 5 to 10 days when things get dry. Established clover shrugs off drought, and even if a long hot stretch leaves it brown and thin, it usually bounces back on its own once the rain shows up.

Soil

Clover isn't picky and grows in all sorts of soils, though it likes a moist, fertile, well-drained loam best. A pH of 6.0 to 7.0 is its sweet spot, and good drainage matters more than rich ground, since it makes its own nitrogen anyway.

Temperature

This one's a real tank, taking cold down to -29°F (-34°C) and summer heat up to around 95°F (35°C). That's the range that lets it grow across hardiness zones 3 through 10.

Humidity

Regular outdoor air is all it wants, so there's no number to babysit. Clover's fine with dry air or damp, as long as the soil stays evenly moist.

Feeding

Here's the payoff of a legume: it needs little to no fertilizer because it pulls its own nitrogen from the air. The one thing worth doing? Coat the seed with Rhizobium where those soil bacteria are missing, especially in warmer zones.

Pruning

Just mow or trim clover to keep it low and tidy, and it takes the haircut no problem. Regular mowing also knocks the flowers back, which comes in handy in play areas where bare feet and busy bees might otherwise cross paths.

Repotting

none

Size & spacing

White clover stays low, only 4 to 8 inches (10 to 20 cm) tall, but each plant creeps out on stolons to cover 1 to 3 feet (30 to 100 cm). That's how a light little seeding grows into a solid mat in just one season.

When to plant

Clover's pretty relaxed about when you plant it. Just scatter seed outdoors in spring or late summer, leaving about 40 days before the first hard frost, and it'll green up in a few weeks. Flowers show up from late spring through fall and peak in early summer.

Northern hemisphere

Sow Apr–May
Sow Aug–Sep
Bloom May–Oct

Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.

  • Sow: Not typically started indoors; direct sow outdoors.
  • Plant: Spring or late summer; allow about 40 days before first killing frost for late-summer seeding.
  • Harvest: Late spring through fall (peak early summer); round white to pinkish flower heads.

Hardiness

USDA hardiness zones: 3–10

Temperature: down to -40°C

Troubleshooting

White clover hardly ever gives you grief, and most of what people call problems are really just about where it grows and who it invites over. Find what matches below, then decide if you want to manage it or just let it do its thing.

Setback

Clover going brown and thin in a dry stretch

Clover roots sit shallow, so a long, hot drought can leave the foliage brown and patchy for a while. The good news? An established patch almost always bounces back once the rain returns. Water it deeply through the worst of the dry spell to keep the soil moist, then just let it recover on its own.

Fix:

  • Water deeply during prolonged drought to keep soil moist
  • Allow established stands to recover naturally once rainfall resumes
Cosmetic

Clover creeping into the lawn in spreading patches

Those patches? They come from creeping stolons, stems that run along the ground and root wherever a node hits soil, so a few plants knit together fast. Low soil nitrogen also tips things clover's way over hungry grass. If you'd rather it stayed out, feed the turf so the grass thickens up, then treat with a broadleaf herbicide that's got fluroxypyr or clopyralid, which works best in fall.

Fix:

  • Decide whether clover is desirable (eco-lawn) or a weed before acting
  • Fertilize turf with nitrogen to favor grass over clover
  • For removal, apply a broadleaf herbicide such as one containing fluroxypyr or clopyralid, most effective in fall
Cosmetic

Bees hanging around the flowers underfoot

White clover blooms are basically a magnet for honeybees and bumblebees, and they forage right at ground level all through the flowering. Great for pollinators, but a worry for bare feet in play areas. Mow off the open flowers before the kids head out, wear shoes on flowering patches, and leave some clover unmown elsewhere so the bees still get fed.

Fix:

  • Mow before or during peak bloom to temporarily remove flowers in high-traffic or play areas
  • Wear shoes when walking on flowering clover
  • Keep some unmowed clover elsewhere to support pollinators

Toxicity

Good news for most households: white clover is non-toxic and even edible. Cats, dogs, rabbits, birds, and people are all fine around it, and the young leaves and flowers have been eaten in small amounts forever. The only real thing to watch? Grazing horses and livestock, where a lot of lush clover can bring on bloat or a harmless drooling called slobbers.

Safe for

People · Cats · Dogs · Horses · Rabbits · Livestock · Birds

Cats None

Nothing to stress about here. A cat that nibbles a leaf or a flower will be totally fine, since clover's got nothing that bothers them.

Dogs None

Dogs can sniff, chew, or roll through it all they want. It's a non-toxic plant, so a curious mouthful won't hurt a thing.

Horses Mild

Clover's good forage for horses in normal amounts. Just keep an eye on heavy grazers on lush stands, since clover can sometimes carry a fungus that sets off the harmless but messy drooling called slobbers.

Rabbits Safe

A total rabbit favorite and a healthy treat, too. Both the leaves and flowers are safe for them to munch.

Livestock Mild

Great pasture, but a belly full of lush, wet clover can bring on bloat in cattle, sheep, and goats. Watch for a swollen left flank and obvious discomfort, and ease ruminants onto rich stands instead of turning them out hungry.

Birds Safe

No worries for birds. Hens and other poultry can peck at the leaves and flowers without any trouble at all.

People Safe

The young leaves and flower heads are edible and have been eaten in small amounts for ages. Clover's safe for people, with no toxic parts to steer clear of.

Safe for cats, dogs, and people. Note that lush white clover can cause bloat in grazing ruminant livestock (cattle, sheep) and clover can occasionally accumulate cyanogenic glycosides or fungal infection affecting grazing animals, but it is excellent forage and not poisonous to pets or people.

Varieties

White clover comes in a few different sizes, from tall forage types down to teeny lawn selections, so there's likely one for whatever you've got in mind. Here are the ones you'll probably bump into.

Ladino clover

Ladino's the big, vigorous forage type that grows two to four times taller than the intermediate clovers and fixes more nitrogen than any of them.

Dutch white clover

Dutch white clover's the everyday low lawn clover, around 6 to 12 inches (15 to 30 cm) tall, and it doesn't mind summer heat one bit.

Microclover

Microclover's the small-leaved turf stuff like Pirouette and Pipolina that stays low, flowers less, and blends into a lawn so well you'd barely notice it.

Companions

Clover pairs well with plants it can feed. Its nitrogen-fixing roots support neighboring grass and crops, which is why it turns up in lawn mixes and as a living mulch.

Plant near

turf grasses (fescue, ryegrass)vegetables and orchard/vineyard crops

turf grasses (fescue, ryegrass): Clover fixes nitrogen via Rhizobium that feeds neighboring grass, reducing fertilizer needs in lawn mixes.

vegetables and orchard/vineyard crops: Low-growing living mulch that suppresses weeds and enriches soil with nitrogen.

How to propagate

Want more clover? Couldn't be easier. You can sow seed, or honestly just let the plant spread itself across the ground.

SeedEasy

Spring or late summer (about 40 days before first killing frost) · Establishes within several weeks; full stand in one season

Most clover just gets scattered right onto the ground in spring or late summer, leaving about 40 days before the first hard frost if you're sowing late. If the right soil bacteria aren't there, especially in warmer zones, coat the seed with Rhizobium first. A fresh stand fills in within a few weeks and covers the ground fully in a single season.

DivisionEasy

Spring through early fall · Quickly, as stolons root at the nodes

Clover also spreads all on its own, sending out creeping stolons that root at every node into a self-mending mat. You can lift and move rooted pieces any time from spring through early fall, and they grab hold fast because the roots are already there.

Myths

Myth

Clover is nothing but a lawn weed you're supposed to get rid of.

Reality

Clover picked up that weed rep back in the broadleaf-herbicide days, but the plant's way more useful than that. It fixes its own nitrogen, feeds pollinators, and barely asks for anything, which is exactly why people now seed it on purpose into eco-lawns, bee lawns, cover crops, and living mulch.

Sources