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Tall Plains Golden Tickseed Flowers

Standard · Asteraceae

Tall Plains Golden Tickseed, also known as plains coreopsis or calliopsis, is a long-blooming North American annual with yellow petals washed or banded in reddish brown. Plants usually reach 2-3 feet tall on airy stems and flower quickly from seed, making them useful in pollinator strips, cottage borders, and informal cut-flower beds. Once established it tolerates heat, lean soils, and dry periods better than many bedding annuals. Key facts: 60–70 days to maturity, 6+ hours of sun, 8–12 " spacing. Can be grown in containers with care (3+ gallon minimum).

Updated April 19, 2026 · Backed by 4 cited sources
Overview

At a Glance

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

Days to maturity
60–70 days
Sun
6+ hours
Full Sun, 8+ Hours
Spacing
8–12 "
between plants
Seed start
4–6 weeks
before transplant
Container
Possible
Needs 3+ gal minimum
Height
2–3 ft
at maturity
Planting window

Zone Planting Guide

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Care

Growing Guide

Everything in one place: seed starting, transplant timing, watering, soil, and structural support.

Seed starting
Germination
Time7–14 days
Optimal temperature70°F
Seed depth0.125"
Moving outdoors
Transplanting
Minimum soil temp55°F
Harden off5 days
Moisture
Watering
Weekly0.5–1 "
NeedsLow
Drip or base watering
Root zone
Soil
pH range6–7.5
PreferredWell Drained Sandy Or Loamy Soil
Resilience

Plant Health

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

Tolerance
Heat: High Cold: Low Drought: High

Common Issues

Floppy Stems

Cause: Rich soil and excess water

Prevention: Keep fertility modest and avoid overwatering

Self Seeding

Cause: Seed heads mature readily

Prevention: Deadhead if volunteers are not wanted

Leaf Spot

Cause: Humid weather and crowded plantings

Prevention: Improve airflow and water at the base

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 several flowers are open and fresh, or wait for dry heads if harvesting seed.

Expected yield0.08–0.15 lbs/plant
Storage5 days — Fresh stems hold several days in water; dry seed heads thoroughly before storage.
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 Tall Plains Golden Tickseed'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 Colorado State University Extensionreference SeedStorereference Lady Bird Johnson Wildflower Center
Internal links

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