Fringed Sunflower
verbesina alternifolia
Also known as: ["Yellow Wingstem","Fringed Wingstem"]
Overview
A tall, herbaceous perennial native to North America, known for its yellow, daisy-like flowers and distinctive winged stems.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","drought tolerant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Verbesina |
| Botanical Name: | Verbesina alternifolia |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: garden bed or large container in open space
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°C"}
- Hardiness: {"zones":"5–9"}
- Misting: rarely required
- Drainage: Well-draining to slightly moist; avoid heavy clay soils.
- Soil Type: Rich, loamy soil with good organic matter; well-draining to prevent waterlogging.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually in late winter or early spring before new growth begins.
- Pruning Intensity: Moderate; remove up to one-third of the oldest stems to rejuvenate the plant.
Care Details
Ideal Sunlight Coverage:
Full sun to partial shade (6–8 hours of direct sunlight daily); tolerates some afternoon shade in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun to prevent scorching; adjust placement based on seasonal light changes.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant weekly for even growth; use sheer curtains to filter intense light; move outdoors in spring/summer for optimal light.
Watering
every 7–10 days during growing season, reduce in winter
Water thoroughly until it drains from the bottom, allow soil to dry partially between waterings, avoid overhead watering to prevent fungal issues.
Soil
well-drained, loamy soil
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure soil is not compacted; avoid overwatering to prevent root rot; enrich soil annually with organic matter.
Temperature
Prefers 65–85°F (18–29°C); tolerates mild frosts but thrives in warm conditions.
Avoid sudden temperature fluctuations; protect from frost; ensure good air circulation in hot weather.
Fertilizing
every 4–6 weeks during spring and summer
Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; stop fertilizing in fall.
Propagation
Methods
Stem cuttings or division; stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting with at least two nodes.
- Remove lower leaves.
- Apply rooting hormone.
- Plant in moist medium.
- Keep warm and humid.
Best Time: Late spring to early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain consistent moisture.
Medium
Well-draining potting mix with perlite or sand; can also root in water initially.
Hormone
Rooting hormone is recommended to improve success rates.
Timeline
Roots develop in 3–6 weeks; new growth appears in 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining mix, plastic wrap or propagator.
Quick Tips
Use sharp, sterile tools to prevent infection; maintain high humidity for faster rooting; avoid direct sunlight during rooting.
Pruning & Repotting
Pruning Guide
Method
Selective thinning of stems; cut just above a leaf node or bud.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove dead or weak stems.
Tools
Pruning shears, loppers (for thicker stems), gloves.
Checklist
Sterilize tools; prune before new growth; remove dead/damaged stems; shape the plant.
Repotting Guide
Best Season
Early spring before active growth starts.
Pot Size
One size larger pot (e.g., +2 inches in diameter); ensure good drainage.
Method
Remove plant gently; trim any circling roots; place in a slightly larger pot with fresh soil; water thoroughly.
Suggestions
Repot every 2–3 years or when roots outgrow the container; beneficial for root health and growth.
Checklist
Choose appropriate pot size; prepare fresh soil mix; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure drainage; avoid wetting leaves.
How to Apply Water Properly
Water directly at the root zone, ensuring even saturation to a depth of 6–8 inches, allow excess water to drain completely, water in the morning to reduce evaporation and fungal risk.
Watering Schedule Tips
Water deeply once the top 1–2 inches of soil are dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add compost or aged manure for fertility; mix in perlite or sand for drainage; use mulch to retain moisture.
Temperature Stress Management
Signs of Temperature Issues
Yellowing leaves or leaf drop in cold stress; wilting or scorched leaf edges in excessive heat.
Cold Stress
Growth slows or halts; leaves may turn yellow or brown; risk of frost damage in temperatures below 28°F (-2°C).
Solution: Move to a sheltered location or indoors in fall; apply a thick layer of mulch to insulate roots; protect from drafts.
Hot Stress
Wilting, leaf scorch, or reduced flowering due to excessive heat and dry conditions.
Solution: Provide shade during peak heat; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Use diluted fertilizer; fertilize during active growth; avoid winter feeding.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring/summer); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicVerbesina alternifolia is not considered toxic to cats. There are no known toxic effects or physiological impacts associated with this plant when ingested by cats.
⚡ Toxic If:
if eaten
Dogs
Non-toxicVerbesina alternifolia is not considered toxic to dogs. There are no known toxic effects or physiological impacts associated with this plant when ingested by dogs.
⚡ Toxic If:
if eaten
Humans
Non-toxicVerbesina alternifolia is not considered toxic to humans. There are no known toxic effects or physiological impacts associated with this plant.
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How tall does Verbesina alternifolia grow?
A: It typically grows to 5–8 feet tall.
Q: Does it require full sun?
A: Yes, it thrives in full sun to partial shade.
Q: Is it suitable for container gardening?
A: No, it is best suited for garden beds due to its height and spread.
Quick Reference
| Family: | Asteraceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during growi |
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