// SPECIES PROFILE · PERENNIAL · NATIVE

Lance-Leaf Coreopsis

Coreopsis lanceolata

Lance-Leaf Coreopsis is the most reliable, easy, and widely-available native yellow daisy of the southern plains — a tough, drought-tolerant 1–2 ft prairie perennial that opens its bright golden-yellow ray flowers in mid-May and continues, with deadheading, into early July. Found wild across nearly every county in eastern Oklahoma, it is the foundation perennial of countless NE Oklahoma pollinator gardens, roadside seed mixes, and ODOT wildflower plantings. Genuine, easy, native, and butter-yellow.

// QUICK FACTS

Family: Asteraceae (composite family)
Group: Herbaceous perennial; clumping
Native range: Most of E US: ME → MN → OK → FL
USDA hardiness: Zones 4–9 (Tulsa = 7a/7b)
Mature size: 1–2 ft tall × 1–1.5 ft wide
Habit: Clumping basal rosette; flowering stems erect
Sun: Full sun (6+ hrs)
Soil: Well-drained sand, sandy loam, gravel; tolerates clay; pH 5.5–8.0
Water: Low — deeply drought-tolerant
Bloom: Mid-May – early July (longer w/ deadheading)
Wildlife value: Native bees, syrphid flies, small butterflies, finches
Larval host: Several Coreopsis-specialist micro-moths
Ecological role: Prairie indicator · pollinator workhorse · long bloom

Lance-Leaf Coreopsis (Coreopsis lanceolata) — golden-yellow daisy flowers — *Coreopsis lanceolata* — bright golden ray flowers and the diagnostic narrow basal leaves. Photo via Wikipedia / Wikimedia Commons.

Identification

[ field key — basal rosette · stems · flowers · seeds · lookalikes ]

Basal rosette & habit

A short clumping perennial with a persistent basal rosette of narrow, lance-shaped leaves 2–6 in long with long-tapering bases (the diagnostic feature, and the source of both the species name lanceolata and the common name “lance-leaf”). Flowering stems rise 12–24 in tall from the rosette, branching only at the top to bear 1–3 flower heads each. Multiple flowering stems give a tidy, well-shaped clump.

Stem leaves

Stem leaves are opposite, much smaller, and mostly confined to the lower half of the stem — a clean separation from the similar threadleaf coreopsis (C. verticillata) which has whorls of fine thread-like leaves all up and down the stem, and from C. tinctoria (plains coreopsis, an annual) which has heavily leafy stems.

Flowers

Each flower head is 1.5–2 in across with 8 bright golden-yellow ray florets, each ray notched into 3–4 teeth at the tip (another diagnostic feature). Disk florets are yellow-orange to brown-yellow. Bloom begins in mid-May in NE Oklahoma and continues 6–8 weeks naturally; with deadheading the plant will rebloom intermittently into early July, and on cool wet summers occasionally throw a small fall flush.

Seed & lookalikes

Seeds are flat, dark-brown, oblong achenes ~¼ in long — the source of the alternate common name “tickseed” (the seeds resemble small ticks). Lookalikes: C. tinctoria (plains coreopsis) is an annual with red-brown disk centers; C. grandiflora (large-flower coreopsis) has slightly larger flowers with longer-stemmed leaves on the stem; C. verticillata has whorled threadlike foliage. C. lanceolata is the basic, standard, perennial species.

Habitat & Range in NE Oklahoma

Coreopsis lanceolata is one of the more common native perennial daisies in eastern Oklahoma, found wild on tallgrass-prairie remnants, sand prairies, sandstone glades, dry rocky bluffs, gravelly roadside right-of-way, and old-field/early-successional meadows across nearly every county from the Cross Timbers eastward. Particularly characteristic of the sandy and sandstone-derived soils of the south-Tulsa belt, the Sand-Springs hills, and the Salt-Plains region, where it forms attractive roadside displays in May.

The species is highly adaptable but most reliable on well-drained, low-fertility sandy or rocky soils in full sun. It tolerates clay if drainage is good but tends to be shorter-lived (3–5 years instead of 8–10) on heavy soils, where rust and crown rot eventually take it. On its preferred sandy substrate it can persist on the same patch of ground for decades and self-seed enough to maintain a colony indefinitely. NE Oklahoma roadside displays are largely seedling regeneration from year to year, not persistent individual plants.

Ecology & Wildlife Value

[ pollinators · seed-eaters · larval hosts · self-seeding ]

Pollinators

A reliable workhorse rather than a specialist magnet. Visited heavily by small native bees including Ceratina (small carpenter), Halictus and Lasioglossum (sweat bees), Augochlora, Andrena, and the specialist coreopsis pollen-bee Melissodes coreopsis. Syrphid flower flies and small butterflies (skippers, sulfurs, hairstreaks, painted ladies) also visit. Honeybees use it as steady forage during the May–June peak.

Seed-eating birds

The flat “tickseed” achenes ripen in midsummer and are eagerly eaten by American goldfinch, indigo bunting, painted bunting, lesser goldfinch, and house finch. A coreopsis stand in early August can hold a small flock of finches working the seed heads. Leaving some heads to mature (instead of deadheading all of them) is the trade-off between extending bloom and feeding finches.

Larval hosts

Larval host plant for several Coreopsis-specialist micro-moths including the wavy-lined emerald (Synchlora aerata) which decorates itself with petal fragments for camouflage, and the common tan wave moth (Pleuroprucha insulsaria). These holes-in-leaves and petal-decorated caterpillars are part of the ecological footprint and should be tolerated.

Self-seeding behaviour

Coreopsis self-seeds readily in disturbed open soil, which is why it persists indefinitely on roadsides and in low-mow gravelly meadows. In a mulched, weed-controlled garden bed it self-seeds far less aggressively — the seeds need bare soil and light contact to germinate. Plan for this either way: in a meadow you'll get a self-maintaining colony; in a tidy bed you'll need to divide and replant every 4–6 years to keep populations vigorous.

Long-bloom strategy: If your goal is the longest possible bloom, deadhead aggressively (snip spent heads back to the next bud) every week from late May through June. If your goal is finch food and natural self-seeding, deadhead lightly through May and let the July seedheads ripen on the plant. Pick one strategy by zone of the garden — or split the difference by deadheading the front of the bed and leaving the back.

Allergenic pollen: Like most composites, coreopsis pollen can trigger seasonal allergies in sensitive individuals. Not a major contributor to regional pollen counts compared with grasses or ragweeds.

Horticulture & Care

[ siting · planting · deadheading · cutback · cultivars · pests ]

When to plant intentionally

Lance-leaf coreopsis is the right plant for: front-of-border perennial beds, sunny meadow plantings, prairie restorations, ODOT-style roadside plantings, native pollinator gardens, dry sunny slopes, gravel gardens, and low-maintenance mass plantings. Also outstanding in container gardens. Avoid heavy poorly-drained clay and dense shade; both shorten its life dramatically.

Planting from plugs / containers

Season: spring (Feb–Apr) or fall (Sept–Oct) in Tulsa.
Sun: full sun (6+ hrs); flowers poorly in any meaningful shade.
Soil: well-drained sandy loam ideal; tolerates clay if drainage is good. Low fertility preferred — rich soil produces floppy, short-lived plants.
Hole: 2× rootball width, same depth.
Spacing: 12–18 in on-center for solid mass; 24–30 in for individual specimens.
Water: deep weekly soak the first growing season; almost never thereafter.
Mulch: 1–2" of coarse gravel or pine bark; avoid deep wet wood-chip mulch which encourages crown rot.
Fertilizer: none. Fertility kills coreopsis faster than drought.

Establishment from seed

Stratification: 30–60 days cold-moist OR sow direct in late October/November.
Site: exposed bare soil; full sun; sandy or gravelly substrate.
Sowing: press seed into soil to ~¼" depth; do not bury deeper. Light required for germination.
Year 1: rosettes form; few flowers.
Year 2: reliable bloom and self-maintaining colony.

Deadheading & cutback

Deadhead aggressively for longest bloom — snip spent flower heads back to the next leaf node every 7–10 days from late May through late June. After the main bloom flush in early July, shear the entire plant back by half; this triggers fresh basal foliage and often a small late-summer rebloom. Cut back to ~3 in tall in late winter (Feb–early Mar) before new growth resumes.

Notable cultivars

Cultivar	Habit	Distinguishing feature	Notes for Tulsa
Straight species (C. lanceolata)	1–2 ft	Bright golden, 8 toothed rays	Best for restoration, naturalistic plantings, and seed mixes.
'Sterntaler'	1–2 ft compact	Yellow with maroon eye-zone at the disk	More ornamental selection; reliable in the Tulsa border.
'Goldfink' ('Goldfinch')	9–12 in dwarf	Compact dwarf form; profuse small heads	Front-of-border choice; container-friendly.
'Brown Eyes'	1–2 ft	Yellow with chocolate-brown eye markings	Striking in mass plantings; unusual color combination.
'Double Sunburst'	1.5–2 ft	Semi-double yellow flowers	Showier but reduced pollinator value — favor straight species for habitat plantings.

Pests & diseases

Crown rot on poorly-drained clay — avoid by siting for drainage.
Powdery mildew in still humid summers; cosmetic.
Aster yellows phytoplasma — uncommon but causes green-petaled deformed flowers; remove infected plants.
Spider mites on stressed plants in hot dry summers.
Largely deer- and rabbit-resistant.

Cultural & Material Uses

Coreopsis has a long folk-dye and pollinator-conservation record across the eastern US, plus a quietly central role in modern roadside and prairie- restoration practice.

Natural dye: Coreopsis flowers (especially the related annual C. tinctoria, but C. lanceolata works too) yield a strong, lightfast warm-yellow to deep-orange dye on wool with an alum mordant; with iron, the dye shifts toward olive and khaki. The Cherokee and other southeastern tribes used coreopsis dyes for basketry and textile decoration; modern fiber artists in Oklahoma still grow it for natural dyeing.
Indigenous medicinal use: The Cherokee used coreopsis root decoctions for digestive complaints. Documented in Moerman's Native American Ethnobotany. Not recommended for self-medication today.
State wildflower: Coreopsis (the genus, not this specific species) is the official state wildflower of Florida, recognized in 1991. Mississippi designates Coreopsis spp. as state wildflowers as well.
Roadside restoration: Standard species in the ODOT wildflower seed mix and in hundreds of Oklahoma county-road right-of-way plantings. Cost-effective, reliable, native, and visually striking on the state-highway scale.
Pollinator-conservation horticulture: Recommended by Xerces, Pollinator Partnership, the Lady Bird Johnson Wildflower Center, and the Oklahoma Native Plant Society as a foundational pollinator perennial.
Cut flower: Holds 5–7 days in a vase; cut in early bloom. Strip lower foliage to reduce water uptake issues. Often combined with native grasses, gaillardia, and rudbeckia in farm-stand bouquets.
Native-plant nurseries: Among the easiest natives to propagate from seed; widely available at Oklahoma native-plant sales including the Oklahoma Native Plant Society spring sale and OSU Extension events.

Sources & Further Reading

USDA NRCS PLANTS Database — Coreopsis lanceolata: plants.usda.gov/plant-profile/COLA5
Lady Bird Johnson Wildflower Center — Coreopsis lanceolata: wildflower.org — COLA5
Missouri Botanical Garden Plant Finder — Coreopsis lanceolata horticultural profile and cultivar notes.
Oklahoma State University Extension — Native Wildflowers for Oklahoma Landscapes.
Oklahoma Native Plant Society — coreopsis profile and propagation notes.
Oklahoma Biological Survey — Atlas of the Flora of Oklahoma, Coreopsis distribution records.
Xerces Society — Pollinator Plants of the Central United States, coreopsis entry.
Moerman, D.E. — Native American Ethnobotany, Coreopsis entries.
Oklahoma Department of Transportation (ODOT) — Wildflower Program seed-mix specifications.
Wikipedia — Coreopsis lanceolata: en.wikipedia.org/wiki/Coreopsis_lanceolata (CC BY-SA 4.0).

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In a dry mixed-grass prairie planting, lance-leaf coreopsis pairs naturally with: new jersey tea (Ceanothus americanus), big bluestem (Andropogon gerardii), aromatic aster (Symphyotrichum oblongifolium), buffalograss (Bouteloua dactyloides), black-eyed susan (Rudbeckia hirta), and little bluestem (Schizachyrium scoparium).

Combine lance-leaf coreopsis with the warm-season grasses listed above for a self-sustaining matrix.