Ornamental · Asteraceae
Oxeye Daisy
Leucanthemum vulgare
Given sun and lean, well-drained soil, the oxeye daisy raises white-rayed, yellow-eyed blooms for months on end.
Full sun
Every 7–14 days
USDA 3–8
1–3 ft · 0.3–0.9 m
Overview
The oxeye daisy wears the classic flower face of summer roadsides and meadows: a ring of clean white ray petals circling a flat, button-like eye of golden yellow. Each bloom spans 1.5 to 2 inch (4 to 5 cm) across and rides atop a slender upright stem, and the plant belongs to the daisy family carried out of Europe and Asia long ago. Below the flowers sit low basal leaves, and the whole plant is tough enough to shrug off poor soil and hard cold.
The stems rise 1 to 3 feet (30 to 91 cm) tall over a clump that widens to 12 to 24 inches (30 to 61 cm), and beneath the surface pale creeping rhizomes push outward through the soil. That underground network, paired with heavy seed, is what lets a single plant thicken into a broad colony within a couple of seasons. Across much of the western US and in states like Minnesota it is treated as an invasive or noxious weed, so its local rules are worth checking before planting.
Up close, the appeal is plain and honest: crisp white rays, a yellow center, and firm green stems that keep the flowers held high. Given full sun and free-draining ground, deadheading spent heads coaxes fresh buds through the season. Where the creeping habit is unwelcome, the sterile cultivar sets no seed and stays put.
Care
The short version: full sun and average, well-drained soil kept on the dry side. Water it only while it settles in, skip the fertilizer in decent ground, and deadhead the spent white heads through the season to keep fresh blooms coming.
Light
In full sun the stems stand firm and straight and carry the heaviest crop of white blooms. The plant takes some afternoon shade, but in deep shade the stems stretch thin, lean over, and set fewer flowers.
Water
Once its roots take hold, the oxeye daisy is drought tolerant and prefers soil on the dry to medium side. A new plant takes water every 7 to 14 days while it settles, then leans mostly on the weather, since soggy ground softens and rots the base.
Soil
Average, well-drained soil suits it best, and its roots hold in the poor, lean ground that defeats other perennials. A slightly acidic to neutral pH of 6.5 to 7.0 is its range, though drainage counts for far more than the exact number.
Temperature
This is a cold-hardy perennial that holds through roughly -40°F to 90°F (-40°C to 32°C). The deep winter cold of zones 3 to 8 leaves the crown unharmed, and fresh green shoots push up from the base each spring.
Humidity
Ordinary outdoor humidity means nothing to it, so there is no level to aim for. Air movement counts for more, because still, damp air trapped among crowded stems is what freckles the leaves with spot.
Feeding
In average soil the oxeye daisy needs no feeding at all, and rich ground only leaves the stems soft and floppy and quicker to spread. Where the soil is truly poor, one light, balanced feed in the growing season is plenty.
Pruning
Deadheading the spent white heads through the season draws out fresh buds and cuts back the heavy self-seeding. As flowering fades, the stems get cut down to the low basal leaves, leaving a tidy green rosette.
Size & spacing
The stems reach 1 to 3 feet (30 to 91 cm) tall over a clump spreading 12 to 24 inches (30 to 61 cm) wide, so each plant wants room to stand clear. Crowded clumps trap damp air among the leaves and invite spot.
When to plant
The oxeye daisy is hardy from zones 3 to 8 and takes hard cold without flinching. Seed goes in indoors 6 to 8 weeks before the last frost, plants set out once the soil warms in spring, and the white-rayed, yellow-eyed flowers open from May through August.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Sow: 6 to 8 weeks before last spring frost
- Plant: After last spring frost once soil has warmed
- Harvest: Blooms May through August
Hardiness
USDA hardiness zones: 3–8
Temperature: down to -40°C
Troubleshooting
This is a tough plant, so trouble is rare and usually traces back to wet, crowded conditions. Most of what marks the leaves or slumps the stems is a fungus or a few sap-feeding insects. Match the look of what you see below and act early, while it still helps.
Whole plant slumping and yellowing as growth stalls
Foliage that goes limp and sallow yellow from top to bottom while growth stalls is the mark of verticillium wilt, a soil-borne fungus that clogs the inside of the stem and creeps upward from the lowest leaves. Nothing reverses it once it settles in, so the affected plants get lifted and destroyed. Sharpening the drainage and keeping susceptible species out of that ground blocks its return.
Fix:
- Remove and destroy affected plants
- Avoid replanting susceptible species in the same soil
- Improve drainage
Plant sagging over with soft rot at the stem base
Stems that turn soft and rotted where they meet the soil, letting the plant sag over, signal stem rot or southern blight, which settle into warm, wet ground that drains slowly. The infected plants get pulled and discarded before the decay creeps outward. Improving the drainage and easing mulch back from the crown leaves the stem base dry.
Fix:
- Remove and discard infected plants
- Improve drainage and reduce moisture at crown
Brown and black spots freckling the leaf surface
Discrete brown and black flecks stippling the leaves are fungal leaf spot, which spreads through humid, crowded plantings and darkens further after wet weather. Stripping off the freckled foliage and opening the clump by thinning or dividing lets air slip between the leaves. Watering low at the base keeps the leaf surfaces dry and unmarked.
Fix:
- Remove affected foliage
- Improve air circulation by thinning or dividing clumps
- Avoid overhead watering
Crumpled new shoots with insects massed on stems and buds
Puckered, crumpled young shoots and tight knots of insects clinging to the stems point to sap feeders such as aphids, mites, or leaf miners, whose feeding leaves pale, winding tunnels etched across the leaf blades. A firm jet of water dislodges most of the clusters. Insecticidal soap answers a stubborn return, and resident predators clear the stragglers.
Fix:
- Spray off with water
- Apply insecticidal soap if persistent
Toxicity
The oxeye daisy is a mild irritant rather than a serious poison. Its green leaves and white-and-yellow flowers hold sesquiterpene lactones that can sour a pet's stomach and leave sensitive skin itchy where the sap touches, but a stray nibble rarely does real harm. Keep pets from grazing on it, and wear gloves if your skin reacts.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Mild
A cat that bites into the white rays or a leaf may drool, vomit, or pass loose stools, and the sap can leave the skin itchy where it touches. The upset stays mild and fades once the plant is out of reach.
Dogs Mild
Dogs answer much the same way, with drooling, a churned-up stomach, and now and then an unsteady, wobbling walk after a large mouthful of foliage. Most cases stay mild, though a big helping is worth a call to the vet.
Horses Mild
The sesquiterpene lactones stored in the leaves and flowers can sour a horse's stomach and stir mild colic-like discomfort. The sharp, bitter taste usually keeps horses away unless little else grows within reach.
Rabbits Caution
The bitter daisy compounds in the foliage can unsettle a rabbit's sensitive digestion, so the plant stays off its diet. One stray nibble seldom does real harm.
Livestock Caution
Cattle, sheep, and goats crop around the bitter leaves and flowers, so poisoning is uncommon. The larger trouble is the way the plant elbows out better pasture rather than the mild upset it can cause.
Birds Caution
Little evidence points to serious harm in birds, but the same irritant compounds in the leaves and flowers make it wise to keep pet birds from pecking at them.
People Caution
Brushing and handling the leaves and flowers can raise a red, itchy contact rash on sensitive skin. The plant is not grown to eat, so it stays out of reach of small children who might taste the bright petals.
Contact with leaves and flowers can cause mild contact dermatitis in sensitive individuals.
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
Poison Control: (800) 222-1222
Canada
Poison Centres: 1-844-764-7669
Varieties
Only a couple of forms turn up in gardens, and they look much alike in the flower; the real difference is whether the plant seeds around or holds its clump.
May Queen ('Maikonigin')
A trim, upright form standing to about 2 feet (60 cm), topped with large single white daisies, and because it is reportedly sterile and raised only from divisions, it holds its clump rather than seeding around.
Leucanthemum vulgare (species)
The wild type opens 1.5 to 2 inch (4 to 5 cm) blooms whose white rays circle a flat golden-yellow eye, and it travels fast on both creeping rhizomes and seed.
How to propagate
The oxeye daisy multiplies almost too readily, from both seed and the pale creeping rhizomes underfoot, a boon in a wild corner and a chore anywhere it needs to stay in place.
SeedEasy
Sow in spring after frost or start indoors 6 to 8 weeks before last frost · Germinates in 1 to 3 weeks; blooms by second season
Seed is the usual route into a new patch. Sown outdoors after frost, or indoors 6 to 8 weeks ahead, the seed breaks the surface in 1 to 3 weeks and opens its first white-and-yellow blooms in the second season. The plant self-seeds heavily, and because that seed stays alive in the soil for decades, the buried seed bank is much of why it turns invasive.
DivisionEasy
Spring or early fall, every 2 to 3 years · Reestablishes within one season
Lifting and splitting the clumps in spring or early fall every 2 to 3 years keeps them dense and vigorous, and each division knits back in within a single season. Even a short scrap of the pale creeping rhizome left in the soil will sprout again, so clearing every piece keeps the plant contained.
Myths
The oxeye daisy is the same plant as the garden Shasta daisy and is safe to set anywhere.
They are two distinct plants. The oxeye daisy runs on rhizomes and seed and lands on invasive or noxious weed lists across many regions, while the clump-forming Shasta daisy keeps to the spot you give it. The two are worth telling apart before planting.
Daisies are completely safe and non-toxic to pets.
The leaves and flowers of daisy-family plants hold sesquiterpene lactones and pyrethrins that can bring on mild vomiting, drooling, loose stools, and skin irritation in cats and dogs. The reaction is usually mild but real, so pets stay off it.