Chinese indigo
indigofera decora
Also known as: ["Chinese indigo","Indigofera decora var. glabra"]
Overview
A deciduous shrub native to China, valued for its ornamental foliage and historical use in dye production.
Benefits & Perks
["aesthetic foliage","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Indigofera |
| Botanical Name: | Indigofera decora |
Plant Characteristics
Basic Information
- Category: Shrubs
- Suitable Location: outdoor garden bed in temperate climates, or container in cooler regions
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–30°C"}
- Hardiness: {"zones":"7–9"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, loamy soil with added 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 the oldest stems to rejuvenate growth.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours/day) in cooler climates; partial shade in hot regions to prevent leaf scorch.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun in hot climates; adjust placement based on seasonal light intensity.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Morning sun is ideal; provide shade during peak heat; rotate plant for even growth.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but infrequently; ensure good drainage; avoid wetting foliage.
Soil
well-drained, loamy soil with moderate organic content
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a mix of potting soil and perlite; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers 60–85°F (15–29°C); tolerates mild frosts but thrives in moderate temperatures.
Protect from frost; avoid sudden temperature swings; adjust care based on seasonal changes.
Fertilizing
every 4–6 weeks during growing season with balanced liquid fertilizer
Fertilize less in winter; apply to moist soil to prevent root burn; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Stem cuttings or seed; stem cuttings are more reliable for home growers.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting.
- Remove lower leaves.
- Dip in rooting hormone.
- Plant in medium.
- Keep moist and humid.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (70–90%), warm temperatures (70–75°F), and bright indirect light.
Medium
Well-draining mix of perlite and peat moss or cactus mix.
Hormone
Recommended to use rooting hormone for faster and more reliable rooting.
Timeline
Roots develop in 3–6 weeks; new growth appears in 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, misting spray bottle.
Quick Tips
Use healthy, non-flowering stems; maintain consistent moisture; provide bottom heat for faster rooting.
Pruning & Repotting
Pruning Guide
Method
Selective thinning of stems; heading back to encourage branching.
Pruning Plan
Shape the plant to encourage bushier growth; remove dead or diseased wood to maintain health.
Tools
Pruning shears, loppers (for thicker stems), sterilizing solution.
Checklist
Sterilize tools; prune dead/diseased wood first; make clean cuts just above a bud or node.
Repotting Guide
Best Season
Early spring before active growth starts.
Pot Size
Choose a pot one size larger (2–3 inches wider) than the current one.
Method
Remove plant gently; trim any circling roots; place in a new pot with fresh, well-draining soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; necessary to refresh soil and provide space for growth.
Checklist
Select appropriate pot; prepare new 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, allowing water to penetrate the root zone; continue until water drains from the bottom; avoid overhead watering to reduce fungal risk.
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 aeration with organic matter.
Temperature Stress Management
Signs of Temperature Issues
Yellowing leaves (cold stress); wilting or leaf drop (heat stress).
Cold Stress
Growth slows; leaves may turn yellow or drop; roots become susceptible to damage.
Solution: Move to a warmer location; apply a thick layer of mulch to insulate roots; avoid overwatering.
Hot Stress
Leaves wilt, curl, or scorch; growth may stall; flowers may drop prematurely.
Solution: Provide shade during peak heat; increase humidity with misting; water deeply in the morning.
Fertilizing Guide
Fertilizing Checklist
Use diluted fertilizer; apply during active growth; avoid winter feeding.
Fertilizing Method
Use a balanced, water-soluble 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 are susceptible to the quinolizidine alkaloids in Indigofera decora, which can cause mild to moderate toxicity. The compounds affect the gastrointestinal and nervous systems, leading to discomfort and potential systemic issues.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicThe quinolizidine alkaloids in Indigofera decora can cause mild gastrointestinal upset and neurological symptoms in dogs if ingested. The effects are generally not life-threatening but require veterinary attention.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicIndigofera decora contains quinolizidine alkaloids that can cause mild to moderate toxicity when ingested. These compounds interfere with the nervous system and can lead to gastrointestinal disturbances and other systemic effects.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Indigofera decora toxic to pets?
A: Yes, it is mildly toxic to dogs and cats if ingested.
Q: Does Indigofera decora attract wildlife?
A: Yes, it attracts bees, butterflies, and birds due to its flowers.
Q: How difficult is it to care for Indigofera decora?
A: It requires moderate care, including regular watering and pruning.
Quick Reference
| Family: | Fabaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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