Golden Justicia
justicia aurea
Also known as: ["Golden Justicia","Aurea Justicia"]
Overview
A tropical shrub with bright yellow flowers, native to Central and South America.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","fragrant flowers"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Lamiales |
| Family: | Acanthaceae |
| Genus: | Justicia |
| Botanical Name: | Justicia aurea |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: indoor or outdoor pot in bright, indirect light
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–35°C"}
- Hardiness: {"zones":"9–11"}
- Misting: every 2–3 days in dry climates
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining potting mix with added perlite or sand for aeration.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Light pruning every 2–3 months; major pruning in late winter or early spring.
- Pruning Intensity: Moderate; remove up to one-third of growth for shaping or rejuvenation.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate partial shade, especially in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense light; protect from direct midday sun to avoid scorching; adjust placement based on indoor/outdoor conditions.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
partial shade to full sun
Rotate plant for even growth; use sheer curtains to filter intense light; move outdoors in warm months for better light exposure.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly until it drains from the bottom; allow soil to dry between waterings; avoid overwatering.
Soil
well-draining, fertile potting mix
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 65–85°F (18–29°C); tolerates mild frosts but thrives in warm conditions.
Avoid sudden temperature changes; protect from drafts; maintain consistent warmth for best growth.
Fertilizing
every 4–6 weeks during growing season
Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; reduce frequency in dormant periods.
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 moist medium.
- Maintain humidity.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (70–80%), warm temperatures (70–75°F or 21–24°C), and indirect light.
Medium
Well-draining potting mix with perlite or sand.
Hormone
Rooting hormone is 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, plastic wrap or propagator.
Quick Tips
Use healthy, non-flowering stems; keep soil consistently moist but not waterlogged; provide bottom heat for faster rooting.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips for bushiness; cut just above a leaf node or bud.
Pruning Plan
Prune to maintain shape, encourage bushiness, and remove dead or leggy growth.
Tools
Clean, sharp pruning shears or scissors.
Checklist
Sterilize tools; prune during active growth; remove dead or diseased parts; shape as desired.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
Choose a pot 1–2 inches larger in diameter than the current one.
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 freshness.
Checklist
Select appropriate pot; prepare fresh soil mix; handle roots carefully; 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; water early in the morning to minimize evaporation; ensure excess water drains away to prevent waterlogging.
Watering Schedule Tips
Water deeply once the top inch of soil is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand for drainage; incorporate organic matter like compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Yellowing leaves, leaf drop, or stunted growth in cold; wilting or scorching in excessive heat.
Cold Stress
Slows growth, may cause leaf drop, and can lead to root damage if temperatures drop below 50°F (10°C).
Solution: Move to a warmer location; provide frost protection; reduce watering in cold periods.
Hot Stress
Leaves may wilt, scorch, or drop; growth may slow due to excessive heat and dryness.
Solution: Provide shade during peak heat; increase humidity; water more frequently but avoid waterlogging.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; dilute properly; apply during active growth; stop in winter.
Fertilizing Method
Use 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 upset if they ingest Justicia aurea. The plant is not highly toxic, but ingestion should be avoided to prevent discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicIn dogs, ingestion of Justicia aurea can lead to mild gastrointestinal upset. The plant is not considered highly toxic, but caution is advised to prevent discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicJusticia aurea contains compounds that can cause mild gastrointestinal distress when ingested in significant quantities. The plant's effects are generally not life-threatening but can lead to discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How often should Justicia aurea be watered?
A: Water moderately, allowing the soil to dry slightly between waterings.
Q: Does Justicia aurea require full sun?
A: It thrives in partial shade to full sun, but protection from intense afternoon sun is recommended.
Q: Is Justicia aurea suitable for indoor cultivation?
A: It is primarily an outdoor plant, but can be grown indoors with sufficient light and humidity.
Quick Reference
| Family: | Acanthaceae |
| Care: | moderate |
| Light: | partial shade to full sun |
| Water: | every 7–10 days during activ |
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