Redoul
coriaria myrtifolia
Also known as: ["Redoul","Mediterranean Coriaria"]
Overview
A deciduous shrub native to the Mediterranean region, known for its toxic berries and attractive foliage.
Benefits & Perks
["aesthetic foliage","seasonal color change"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Cucurbitales |
| Family: | Coriariaceae |
| Genus: | Coriaria |
| Botanical Name: | Coriaria myrtifolia |
Plant Characteristics
Basic Information
- Category: Shrubs
- Suitable Location: outdoor garden in a sheltered spot, or as a container plant in a sunny patio
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°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, slightly acidic soil with organic matter.
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 old growth to rejuvenate the plant.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; tolerates partial shade, especially in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense light; protect from direct midday sun to prevent scorching; adjust placement based on indoor/outdoor conditions.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant for even light exposure; use sheer curtains to filter intense sunlight; avoid sudden light changes.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but infrequently; ensure soil dries between waterings; avoid overwatering.
Soil
well-drained, fertile soil with some organic matter
pH: 5.5–6.5 (slightly acidic).
Use a mix of potting soil, perlite, and peat moss; avoid heavy clay soils; check drainage before planting.
Temperature
Prefers mild temperatures, 60–75°F (15–24°C); can tolerate cooler conditions but avoid frost.
Avoid placing near drafty windows or heat vents; maintain stable temperatures; monitor for stress signs.
Fertilizing
every 4–6 weeks during spring and summer
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; use organic options for gentle feeding.
Propagation
Methods
Stem cuttings taken from semi-hardwood growth.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Apply rooting hormone.
- Plant in medium.
- Maintain humidity.
Best Time: Late spring to early summer when the plant is actively growing.
Environment
High humidity (70–90%), warm temperatures (65–75°F), and indirect light.
Medium
Peat-based mix with perlite or sand for good drainage.
Hormone
Rooting hormone is recommended to improve success rates.
Timeline
Roots may develop in 4–8 weeks; establish in new pot after 3–6 months.
Tools Needed
Pruning shears, rooting hormone, small pots, plastic bags or propagator, misting bottle.
Quick Tips
Use healthy, disease-free cuttings; maintain consistent moisture; provide bottom heat if possible.
Pruning & Repotting
Pruning Guide
Method
Selective thinning and heading back to shape the plant and improve air circulation.
Pruning Plan
Prune to maintain shape, encourage bushiness, and remove dead or weak growth.
Tools
Pruning shears, sharp knife, disinfectant.
Checklist
Disinfect tools; prune dead/damaged growth; shape the plant; clean up debris.
Repotting Guide
Best Season
Early spring before active growth starts.
Pot Size
Increase pot size by 2–3 inches in diameter; ensure good drainage holes.
Method
Remove plant gently; trim roots if needed; place in new pot with fresh soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; beneficial for growth and soil health.
Checklist
Check root bound status; prepare new pot; use fresh soil mix; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; adjust for season.
How to Apply Water Properly
Water at the base of the plant, ensuring moisture reaches the root zone; allow excess water to drain away; water in the morning to reduce evaporation.
Watering Schedule Tips
Water deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or chlorosis in extreme heat or cold; stunted growth in unfavorable temperatures.
Cold Stress
Leaves may curl or drop; growth slows or halts; risk of frost damage in freezing temperatures.
Solution: Protect from frost with a cover or move indoors; maintain consistent temperatures above 50°F (10°C).
Hot Stress
Leaves may scorch, wilt, or drop; growth may slow; increased water demand in high heat.
Solution: Provide shade during peak heat; increase watering frequency; ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer correctly; apply to moist soil; avoid contact with foliage.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring to early fall); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicCoriaria myrtifolia is toxic to cats, with ingestion leading to severe neurological and gastrointestinal symptoms. The neurotoxic compounds can cause significant physiological disruption and require urgent veterinary intervention.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicThe toxic principles in Coriaria myrtifolia are harmful to dogs, causing severe neurological and gastrointestinal effects. The compounds can lead to significant distress and potential systemic failure if ingested.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
ToxicCoriaria myrtifolia contains toxic compounds, primarily coriarin and myrtin, which act as potent neurotoxins. Ingestion can lead to severe neurological and gastrointestinal disturbances, affecting the central nervous system and causing significant physiological distress.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Coriaria myrtifolia safe for pets?
A: No, it is highly toxic to dogs and cats.
Q: What are the distinctive features of this plant?
A: It has attractive foliage and is known for its toxic berries.
Q: How difficult is it to care for?
A: It requires moderate care and maintenance.
Quick Reference
| Family: | Coriariaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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