Green Dragon
arisaema dracontium
Also known as: ["Green Dragon","Green Arum"]
Overview
A unique aroid with a single large leaf divided into many leaflets and a small greenish-yellow spathe on a separate stalk.
Benefits & Perks
["shade tolerant","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Liliopsida |
| Order: | Alismatales |
| Family: | Araceae |
| Genus: | Arisaema |
| Botanical Name: | Arisaema dracontium |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: shaded woodland garden or container in a cool, humid environment
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–30°C"}
- Hardiness: {"zones":"5–9"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Moderately well-draining; avoid heavy clay or waterlogged conditions.
- Soil Type: Rich, loamy soil with good organic matter; well-draining but moisture-retentive.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: As needed; typically once per year or after dormancy.
- Pruning Intensity: Light pruning; focus on removing only dead or diseased foliage.
Care Details
Ideal Sunlight Coverage:
Partial shade to full shade; bright indirect light for indoor cultivation; avoid direct sunlight.
Sunlight Tolerance Tips:
Acclimate slowly to brighter light; protect from harsh afternoon sun; place in a shaded garden or north-facing window indoors.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
partial shade to full shade
Avoid direct sun; provide dappled light; rotate plant for even growth.
Watering
every 7–10 days during growing season, reduce in winter
Water thoroughly but infrequently; ensure soil dries slightly between waterings; avoid waterlogging.
Soil
moist, rich, well-drained loam
pH: Slightly acidic to neutral, pH 6.0–7.0.
Use a mix of garden soil, compost, and perlite; avoid compacted soil; maintain consistent moisture.
Temperature
Cool to moderate temperatures, 50–75°F (10–24°C); tolerates cooler nights but prefers not to exceed 80°F (27°C).
Protect from frost; avoid sudden temperature swings; maintain consistent cool to moderate conditions.
Fertilizing
every 4–6 weeks during active growth with balanced liquid fertilizer
Dilute fertilizer to prevent burn; fertilize only when actively growing; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Division of rhizomes; occasionally by seed.
Step-by-Step Propagation Guide
- Carefully dig up rhizome.
- Divide into sections with at least one growth bud.
- Replant immediately.
- Water thoroughly.
Best Time: Early spring before new growth emerges.
Environment
Warm, humid conditions with indirect light; keep soil consistently moist but not waterlogged.
Medium
Well-draining potting mix with perlite or sand; can also be propagated in situ in the garden.
Hormone
Not typically required for rhizome division; optional for seed propagation.
Timeline
Rhizome division can be done immediately; seeds may take several months to germinate and establish.
Tools Needed
Garden trowel, sharp knife, clean pots.
Quick Tips
Ensure each division has a growth bud; plant at the same depth as the parent; maintain humidity after division.
Pruning & Repotting
Pruning Guide
Method
Snip leaves at the base with clean, sharp tools; avoid cutting into healthy tissue.
Pruning Plan
Minimal pruning needed; remove dead or damaged leaves to maintain appearance and health.
Tools
Pruning shears, scissors.
Checklist
Inspect for dead leaves; use clean tools; cut close to the base; dispose of removed foliage.
Repotting Guide
Best Season
Early spring before active growth begins.
Pot Size
One size up from current pot; ensure adequate drainage holes.
Method
Gently remove plant; trim any dead roots; place in a slightly larger pot with fresh, well-draining soil; water lightly.
Suggestions
Repot only when the rhizome outgrows its container or soil becomes depleted; typically every 2–3 years.
Checklist
Check root bound status; prepare new pot; handle rhizome carefully; use fresh soil.
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 is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add compost or leaf mold for fertility; incorporate perlite or sand for drainage; ensure organic matter is well-decomposed.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf yellowing, or stunted growth in extreme heat; leaf browning or dieback in cold stress.
Cold Stress
Slows growth, may cause leaf damage or dormancy; prolonged exposure can lead to root rot.
Solution: Move to a warmer location; insulate roots with mulch; avoid overwatering in cold conditions.
Hot Stress
Leaf scorch, wilting, or premature dormancy; reduced vigor in excessive heat.
Solution: Provide shade; increase humidity; water more frequently but avoid waterlogging.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to moist soil; avoid winter feeding.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength; fertilize monthly during growing season (spring to early fall); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicCats are susceptible to the toxic effects of Arisaema dracontium, particularly due to the presence of calcium oxalate crystals. Ingestion can cause severe oral and gastrointestinal irritation, leading to significant discomfort and potential systemic effects.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicIn dogs, ingestion of Arisaema dracontium can lead to severe oral and gastrointestinal irritation due to calcium oxalate crystals. The plant can cause significant discomfort and potential systemic effects if consumed.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
ToxicArisaema dracontium contains calcium oxalate crystals, which can cause severe irritation and inflammation upon ingestion. The plant's tissues can lead to significant discomfort and potential systemic effects if consumed in sufficient quantities.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Arisaema dracontium toxic to pets?
A: Yes, it is mildly toxic to dogs and cats if ingested.
Q: Does the Green Dragon require full sun?
A: No, it prefers partial shade to full shade.
Q: How often should I water Arisaema dracontium?
A: Water moderately, keeping the soil consistently moist but not waterlogged.
Quick Reference
| Family: | Araceae |
| Care: | moderate |
| Light: | partial shade to full shade |
| Water: | every 7–10 days during growi |
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