Lucky Clover, Iron Cross
oxalis tetraphylla
Also known as: ["Lucky Clover","Iron Cross"]
Overview
A perennial herbaceous plant with clover-like leaves and pink or white flowers, often grown for its ornamental value.
Benefits & Perks
["aesthetic foliage","fragrant flowers","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Oxalidales |
| Family: | Oxalidaceae |
| Genus: | Oxalis |
| Botanical Name: | Oxalis tetraphylla |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: indoor pot or sheltered garden bed
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–30°C"}
- Hardiness: {"zones":"8–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging and bulb rot.
- Soil Type: Well-draining potting mix with added perlite or sand; can include peat moss for moisture retention.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: As needed throughout the growing season; remove spent flowers to encourage reblooming.
- Pruning Intensity: Light pruning; avoid removing more than 20% of foliage at once.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; tolerate partial shade, especially in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense light; protect from direct midday sun to prevent leaf burn; adjust placement based on seasonal light changes.
Care Requirements
Care Difficulty
easyeasy
Sunlight
partial shade to full sun
Rotate plant weekly for even growth; use sheer curtains to filter harsh sunlight.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but allow soil to dry between waterings; avoid waterlogging.
Soil
well-draining, slightly acidic 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 60–75°F (15–24°C); tolerates mild fluctuations but avoid extreme cold or heat.
Avoid placing near drafty windows or heating vents; maintain stable temperatures for consistent growth.
Fertilizing
every 4–6 weeks during growing season
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Division of bulbs or rhizomes; stem cuttings can also be used but are less common.
Step-by-Step Propagation Guide
- Separate bulbs/rhizomes.
- Plant in fresh medium.
- Water lightly.
- Provide warmth and indirect light.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain consistent moisture.
Medium
Well-draining potting mix with perlite or sand; can also propagate in water for stem cuttings.
Hormone
Not necessary for bulb division; optional for stem cuttings to encourage rooting.
Timeline
Bulbs may produce new growth within weeks; stem cuttings typically root in 2–4 weeks.
Tools Needed
Clean knife or scissors, small pots, well-draining soil mix.
Quick Tips
Ensure each division has roots and at least one growth point; keep soil consistently moist but not waterlogged.
Pruning & Repotting
Pruning Guide
Method
Snip off dead or yellowing leaves at the base; pinch back leggy stems to encourage bushier growth.
Pruning Plan
Minimal pruning needed; focus on removing dead or yellowing foliage to maintain appearance.
Tools
Clean, sharp scissors or pruning shears.
Checklist
Inspect for dead/damaged leaves; sterilize tools; prune carefully; dispose of clippings.
Repotting Guide
Best Season
Spring, just before active growth begins.
Pot Size
One size larger pot (e.g., +2 inches in diameter); ensure good drainage.
Method
Gently remove plant; loosen roots; place in a slightly larger pot with fresh, well-draining soil; water lightly.
Suggestions
Repot every 2–3 years or when bulbs become crowded; beneficial for growth and bulb health.
Checklist
Check root health; prepare new pot with drainage holes; use fresh soil mix; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water thoroughly; ensure drainage; adjust for season.
How to Apply Water Properly
Water at the base of the plant, ensuring even moisture distribution without wetting foliage; allow excess water to drain away.
Watering Schedule Tips
Water when 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
Wilting, leaf drop, or stunted growth in extreme temperatures; yellowing or browning leaves.
Cold Stress
Growth slows or halts; leaves may turn yellow or drop; bulbs may rot if soil stays cold and wet.
Solution: Move to a warmer location; insulate pots; reduce watering in cold conditions.
Hot Stress
Leaves may wilt, scorch, or drop; growth may slow; bulbs may go dormant prematurely.
Solution: Provide shade during peak heat; increase humidity; water more frequently but avoid waterlogging.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to moist soil; avoid foliage contact.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during active growth (spring/summer); cease in fall/winter.
Common Problems & Solutions
Toxicity Warning
Cats
Slightly ToxicCats are susceptible to mild toxicity from Oxalis tetraphylla due to its oxalic acid content. Ingestion can cause gastrointestinal irritation and discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicDogs may experience mild toxicity due to the oxalic acid content, which can cause gastrointestinal upset and discomfort. Prolonged or large ingestion may lead to more severe symptoms.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicOxalis tetraphylla contains oxalic acid, which can interfere with calcium absorption and lead to metabolic disturbances when ingested in significant quantities. The plant's toxicity is generally mild but can cause discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Oxalis tetraphylla toxic to pets?
A: Yes, it is mildly toxic to dogs and cats if ingested.
Q: How often should I water Oxalis tetraphylla?
A: Water moderately, allowing the soil to dry slightly between waterings.
Q: Does Oxalis tetraphylla require full sun?
A: It prefers partial shade to full sun, depending on climate conditions.
Quick Reference
| Family: | Oxalidaceae |
| Care: | easy |
| Light: | partial shade to full sun |
| Water: | every 7–10 days during activ |
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