Yellow sophora, Silver bush, Woolly sophora
sophora tomentosa
Also known as: ["Yellow sophora","Silver bush","Woolly sophora"]
Overview
A tropical shrub or small tree with silvery leaves and bright yellow flowers, native to coastal regions.
Benefits & Perks
["long-flowering","drought tolerant","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Sophora |
| Botanical Name: | Sophora tomentosa |
Plant Characteristics
Basic Information
- Category: Shrubs
- Suitable Location: coastal gardens, rockeries, or as a specimen plant in open spaces
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"15–35°C"}
- Hardiness: {"zones":"9–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy loam with organic matter; cactus or succulent mix is ideal.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: high
- Pruning Frequency: Annually in late winter or early spring before new growth begins.
- Pruning Intensity: Moderate; remove up to one-third of old growth if needed.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); tolerates partial shade but may become leggy.
Sunlight Tolerance Tips:
Acclimate new plants to full sun gradually over 1–2 weeks; protect from intense midday sun in hot climates; ensure good air circulation to prevent fungal issues.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Full sun is best; rotate regularly for even growth; avoid deep shade.
Watering
every 7–10 days during active growth, less frequently in winter
Water thoroughly until runoff, allow soil to dry between waterings, and avoid overwatering to prevent root rot.
Soil
well-drained, sandy or loamy soil with moderate organic content
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure excellent drainage; avoid heavy clay soils; amend with organic matter for nutrients.
Temperature
Thrives in warm conditions (65–85°F / 18–29°C); tolerates brief dips to 50°F (10°C) but prefers stable warmth.
Protect from frost; ensure good air flow in heat; maintain stable temperatures.
Fertilizing
every 2–3 months during growing season with balanced fertilizer
Fertilize sparingly to avoid salt buildup; water before and after feeding; use organic options like compost for slow release.
Propagation
Methods
Stem cuttings or seed; stem cuttings are more reliable for home growers.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- 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 (70–80°F / 21–27°C), high humidity (70–80%), 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 typically form in 4–8 weeks; establish in new pot after 3–6 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 if possible.
Pruning & Repotting
Pruning Guide
Method
Selective thinning and heading back to maintain natural form.
Pruning Plan
Shape the plant, encourage bushier growth, and remove dead or diseased wood to maintain health and aesthetics.
Tools
Pruning shears, loppers (for larger branches), gloves.
Checklist
Sterilize tools; prune dead/diseased wood first; make clean cuts; avoid over-pruning.
Repotting Guide
Best Season
Early spring before active growth starts.
Pot Size
Increase pot size by 2–3 inches in diameter.
Method
Remove plant gently; trim roots if crowded; place in slightly larger pot with fresh, well-draining soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the container; necessary to refresh soil and provide space for growth.
Checklist
Choose appropriate pot; prepare new soil mix; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture with finger; water deeply; ensure drainage; adjust seasonally.
How to Apply Water Properly
Water directly at the root zone, ensuring even saturation to a depth of 6–8 inches. Allow excess water to drain freely; water early morning or late evening to minimize evaporation.
Watering Schedule Tips
Water deeply once every 7–10 days during active growth; reduce frequency to every 2–3 weeks in winter or drought. Adjust based on rainfall and soil moisture.
Soil Improvement
Add perlite or coarse sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or leaf drop in cold stress; wilting or scorching in excessive heat.
Cold Stress
Growth slows or halts; leaves may yellow or drop; increased susceptibility to pests and diseases.
Solution: Move potted plants indoors or to a sheltered location; apply a thick layer of mulch for ground plants; avoid watering during cold snaps.
Hot Stress
Leaves may scorch, wilt, or drop; reduced flowering; increased water demand.
Solution: Provide partial shade during peak heat; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; follow dilution rates; apply during active growth; avoid winter feeding.
Fertilizing Method
Use a balanced, slow-release fertilizer (10-10-10) in early spring; apply lightly every 6–8 weeks during growing season; avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicSophora tomentosa is toxic to cats, with the seeds and pods containing quinolizidine alkaloids that can cause severe gastrointestinal and neurological symptoms. Cats are particularly sensitive to plant toxins, and ingestion can lead to serious health complications.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicThe seeds and pods of Sophora tomentosa are toxic to dogs, containing quinolizidine alkaloids that can lead to severe gastrointestinal upset, neurological disturbances, and potential organ damage. The toxicity can be particularly dangerous for smaller dogs or those with pre-existing health conditions.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicThe seeds and pods of Sophora tomentosa contain toxic compounds that can cause mild to moderate gastrointestinal distress and neurological symptoms if ingested in significant quantities. The plant's toxicity is primarily due to the presence of quinolizidine alkaloids, which can interfere with normal physiological processes.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Sophora tomentosa toxic to pets?
A: Yes, it is mildly toxic to dogs and cats.
Q: Does Sophora tomentosa attract wildlife?
A: Yes, it attracts bees, butterflies, and birds.
Q: How much maintenance does Sophora tomentosa require?
A: It requires moderate maintenance, including occasional pruning and watering during dry spells.
Quick Reference
| Family: | Fabaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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