Whirlwind Tickseed
coreopsis verticillata
Also known as: ["Tickseed","Whorled Coreopsis"]
Overview
A perennial wildflower known for its bright yellow, daisy-like flowers and fine, thread-like foliage.
Benefits & Perks
["long-flowering","deer resistant","wildlife attractant (bees, butterflies, birds)","drought tolerant","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Coreopsis |
| Botanical Name: | Coreopsis verticillata |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: border fronts, rock gardens, or containers in full sun
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°C"}
- Hardiness: {"zones":"4–9"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining.
- Soil Type: Well-draining, sandy loam with organic matter; avoid heavy clay.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: high
- Pruning Frequency: Deadhead regularly during blooming season; cut back annually in late fall or early spring.
- Pruning Intensity: Moderate; remove up to one-third of the plant for rejuvenation if needed.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); tolerates partial shade but may produce fewer blooms.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh afternoon sun in hot climates; ensure good air circulation to prevent mildew.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun
Rotate pots for even growth; use sheer curtains to filter intense light; avoid placing in shaded corners.
Watering
every 7–10 days during active growth, less frequently in winter
Water at the base, avoid wetting foliage; allow soil to dry slightly between waterings; adjust based on weather and soil conditions.
Soil
well-draining, sandy loam with moderate organic content
pH: Slightly acidic to neutral (6.0–7.0).
Use raised beds in heavy soil; amend with compost; avoid overwatering to prevent root rot.
Temperature
Prefers 65–80°F (18–27°C); tolerates heat but may require more water; avoid prolonged exposure to frost.
Protect from frost; ensure good air circulation; adjust watering for temperature extremes.
Fertilizing
every 4–6 weeks during spring and summer
Fertilize sparingly; apply before active growth; stop fertilizing in late summer to avoid tender new growth.
Propagation
Methods
Stem cuttings or division; division is preferred for mature plants.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in hormone (optional).
- Plant in medium.
- Keep moist.
Best Time: Early spring or fall when the plant is not in full bloom.
Environment
Warm, humid conditions with indirect light.
Medium
Well-draining potting mix with perlite or sand; can also root in water.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots in 2–4 weeks; establish in 1–2 months.
Tools Needed
Pruners, rooting hormone, pots, well-draining mix.
Quick Tips
Use healthy, non-flowering stems; keep soil consistently moist; provide bottom heat for faster rooting.
Pruning & Repotting
Pruning Guide
Method
Deadhead by snipping just above a leaf node; cut back to near ground level in fall or spring.
Pruning Plan
Remove spent flowers to encourage reblooming; cut back in late fall or early spring to maintain shape.
Tools
Hand pruners, gloves, clean shears.
Checklist
Clean tools; deadhead regularly; cut back in fall/spring; remove dead or weak stems.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
One size larger pot; ensure good drainage holes.
Method
Remove plant gently; trim roots if needed; replant in fresh, well-draining soil with a slightly larger pot.
Suggestions
Repot every 2–3 years or when the plant becomes root-bound; division is often necessary to maintain vigor.
Checklist
Choose appropriate pot; prepare fresh soil; trim roots if necessary; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure proper drainage; adjust for weather.
How to Apply Water Properly
Water thoroughly until it drains from the bottom, ensuring root zone saturation; water early in the morning to minimize evaporation and fungal issues.
Watering Schedule Tips
Water deeply once a week during active growth; reduce frequency in winter; increase during drought or extreme heat.
Soil Improvement
Add perlite or sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf scorch, stunted growth, or bud drop in extreme heat; yellowing or browning leaves in cold stress.
Cold Stress
Low temperatures slow growth and may cause root damage; prolonged frost can kill the plant.
Solution: Mulch heavily in winter; move potted plants indoors; cover outdoor plants with frost cloth during freezes.
Hot Stress
Excessive heat can lead to wilting, flower drop, and reduced vigor; soil may dry out too quickly.
Solution: Provide afternoon shade; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Use balanced fertilizer; apply in spring; avoid late-season feeding; follow package instructions.
Fertilizing Method
Use a balanced, slow-release fertilizer in early spring; avoid over-fertilizing, which can reduce blooms.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicCoreopsis verticillata is not considered toxic to cats. It has no known toxic effects or physiological impact when ingested.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Non-toxicCoreopsis verticillata is not considered toxic to dogs. It has no known toxic effects or physiological impact when ingested.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Non-toxicCoreopsis verticillata is not considered toxic to humans. It has no known toxic effects or physiological impact when ingested.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How often should Coreopsis verticillata be watered?
A: Water deeply once a week, allowing the soil to dry slightly between waterings.
Q: Does Coreopsis verticillata attract pollinators?
A: Yes, it is highly attractive to bees, butterflies, and other pollinators.
Q: Can Coreopsis verticillata be grown in containers?
A: Yes, it thrives in containers as long as it has well-draining soil and receives full sun.
Quick Reference
| Family: | Asteraceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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