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Lanceleaf Coreopsis Flowers

Standard · Asteraceae

Lanceleaf coreopsis is a drought-tolerant perennial wildflower with bright golden-yellow daisy blooms held above narrow basal foliage. Mature plants usually stand about 1 to 2 feet tall and are valuable in sunny borders, pollinator plantings, and meadow-style gardens. It blooms best in full sun and well-drained soil, and seed-grown plants often build stronger flowering colonies from their second season onward. Key facts: 365–430 days to maturity, 8+ hours of sun, 12–18 " spacing. Can be grown in containers with care (3+ gallon minimum).

Updated April 19, 2026 · Backed by 3 cited sources
Overview

At a Glance

The essentials first: timing, light, spacing, seed-starting, container fit, and overall size.

Days to maturity
365–430 days
Sun
8+ hours
Full Sun, 8 10 Hours
Spacing
12–18 "
between plants
Seed start
0–6 weeks
before transplant
Container
Possible
Needs 3+ gal minimum
Height
1–2 ft
at maturity
Planting window

Zone Planting Guide

Switch zones to see whether this plant is a strong fit, what frost timing looks like, and any extra notes worth planning around.

This card updates instantly with viability, frost timing, and any planting notes for your selected zone.

Resilience

Plant Health

Stress tolerance, resistance notes, and the most common problems to watch for as plants mature.

Tolerance
Heat: High Cold: High Drought: High

Common Issues

Crown Rot

Cause: Heavy wet soils can weaken or rot the crown.

Prevention: Use sharply drained soil and avoid heavy mulch over the crown.

Self Seeding

Cause: Spent flowers can set abundant seed in open beds.

Prevention: Deadhead if volunteer seedlings are not desired.

Short Lived Clumps

Cause: Older clumps can thin or decline after several years.

Prevention: Divide or refresh plantings every few years.

Feeding & picking

Nutrition & Harvest

How hungry the plant is, what ripe harvest looks like, and how long the crop keeps after picking.

Feeding
Nutrition
Feeding intensityLow feeder
RecipesWorm Castings Topdress
Timing
Harvest

Cut stems when the first flowers are fully open, or allow seed heads to dry for wildlife and reseeding.

Expected yield0.05–0.15 lbs/plant
Storage6 days — Fresh cuts are short lived but bright; dry seed heads before storing seed.
Plant relationships

Companion Planting

Helpful neighbors can support growth or deter pests. Keep antagonistic plants separated to reduce stress and competition.

Avoid planting near
Herb Fennel
What you'll need

Growing Supplies

Based on Lanceleaf Coreopsis's growth profile -- recommendations matched to this variety's specific requirements.

Drip irrigation / soaker hose kit

Every gardener benefits from putting water at the root zone instead of on the leaves, because drip and soaker systems reduce foliar disease pressure by limiting leaf wetness and soil splash. A quality kit should include a backflow preventer, filter, pressure reducer, and UV-resistant tubing.

Source: Iowa State University Extension; Colorado State University Extension; UMass Extension

Soil test kit

A soil test gives a baseline for pH and nutrient status so gardeners can add only what the soil actually needs. Prioritize a mail-in or lab-affiliated kit whenever possible because extension guidance notes that laboratory testing is more accurate than instant readers.

Source: University of Maryland Extension; Purdue Extension; Montana State University Extension

Quality bypass pruners

Extension guidance favors bypass designs because they make cleaner, closer cuts on living tissue than anvil types. Look for hardened steel blades that can be sharpened, a comfortable grip, and a cutting capacity matched to real home-garden stems.

Source: University of New Hampshire Extension; Iowa State University Extension; Purdue University Extension

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Research

Sources

Reference material and extension guidance used to build this growing guide.

seed_catalog Seeds Nowuniversity USDA Forest Service / native plant referencesreference South Carolina Native Plant Society / NC State references
Internal links

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