Yellow Phagnalon
phagnalon sordidum
Also known as: ["Yellow Phagnalon","Sordid Phagnalon"]
Overview
A perennial herbaceous plant native to the Mediterranean region, characterized by yellow flowers and silvery foliage.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","drought tolerant","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Phagnalon |
| Botanical Name: | Phagnalon sordidum |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: rock gardens, slopes, or sunny borders in temperate climates
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–30°C"}
- Hardiness: {"zones":"8–10"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy loam with some organic matter.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: As needed, typically every 6–12 months or after flowering.
- Pruning Intensity: Moderate; remove up to one-third of growth if overgrown.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate some direct sun in cooler climates.
Sunlight Tolerance Tips:
Acclimate gradually to direct sun; protect from intense midday sun; adjust placement based on seasonal light changes.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant weekly; use sheer curtains to filter intense light; avoid drafty windows.
Watering
every 7–10 days during active growth, reduce in winter
Water deeply but infrequently; ensure excellent drainage; avoid wetting foliage.
Soil
well-draining, sandy loam with some organic matter
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure pots have drainage holes; avoid heavy clay soils; top-dress with compost annually.
Temperature
Prefers moderate temperatures (60–75°F or 15–24°C); tolerates mild heat but dislikes frost.
Avoid sudden temperature shifts; protect from drafts; maintain consistent room temperature.
Fertilizing
every 4–6 weeks during growing season, none in winter
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; use a balanced formula.
Propagation
Methods
Stem cuttings in spring or early summer.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting.
- Remove lower leaves.
- Dip in rooting hormone.
- Plant in medium.
- Keep moist and warm.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain consistent moisture.
Medium
Well-draining mix of perlite and peat moss or cactus mix.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots develop in 3–6 weeks; new growth appears in 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining medium.
Quick Tips
Use sterile tools; keep cuttings out of direct sun; maintain humidity with a plastic bag if needed.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips or cut stems just above a leaf node.
Pruning Plan
Prune to maintain shape and encourage bushier growth; remove dead or leggy stems.
Tools
Pruning shears, sterilizing solution, gloves.
Checklist
Sterilize tools; prune dead or damaged stems; shape the plant; clean up debris.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
One size up from current pot; ensure good drainage holes.
Method
Remove plant gently; trim roots if necessary; place in a slightly larger pot with fresh soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; beneficial for growth and drainage.
Checklist
Check root bound status; prepare new pot; use fresh soil; water sparingly after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; avoid overwatering.
How to Apply Water Properly
Water directly at the root zone until water drains from the bottom; ensure excess water is removed; water in the morning to allow foliage to dry.
Watering Schedule Tips
Water sparingly, allowing soil to dry completely between waterings. Reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand for drainage; incorporate compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or chlorosis in extreme heat or cold; stunted growth in unfavorable conditions.
Cold Stress
Slows growth; may cause leaf discoloration or dieback in prolonged cold.
Solution: Move to a warmer location; provide frost protection; reduce watering in cold periods.
Hot Stress
Leaves may scorch or wilt; growth may slow in excessive heat.
Solution: Provide shade during peak heat; increase humidity; water more frequently but carefully.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to moist soil; avoid contact with foliage.
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
Slightly ToxicCats may experience mild gastrointestinal issues if they ingest Phagnalon sordidum. The plant is not highly toxic to felines but can cause mild discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicIn dogs, ingestion of Phagnalon sordidum may lead to mild gastrointestinal upset. The plant is not considered highly toxic but can cause discomfort if consumed in significant quantities.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicPhagnalon sordidum contains compounds that can cause mild gastrointestinal distress and skin irritation upon contact. The plant's effects are generally not severe but can be problematic for individuals with sensitive systems.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Phagnalon sordidum toxic to pets?
A: There is insufficient data on its toxicity to pets.
Q: How often should Phagnalon sordidum be watered?
A: It is drought-tolerant and requires infrequent watering, especially in well-drained soil.
Q: Does Phagnalon sordidum attract wildlife?
A: Yes, it attracts bees, butterflies, and birds due to its nectar-rich flowers.
Quick Reference
| Family: | Asteraceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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