Jubaea Spurge
euphorbia regis-jubae
Also known as: ["Canary Island Spurge","King of the Spurges"]
Overview
A succulent shrub native to the Canary Islands, characterized by its succulent stems and yellow-green flowers.
Benefits & Perks
["drought tolerant","shade tolerant","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Malpighiales |
| Family: | Euphorbiaceae |
| Genus: | Euphorbia |
| Botanical Name: | Euphorbia regis-jubae |
Plant Characteristics
Basic Information
- Category: Succulents & Cacti
- Suitable Location: rock garden, xeriscaped landscape, or container in a sunny spot
- Suitable For:
- Is Weed: No
- Allergenicity: moderate
Environmental Needs
- Climate: {"temperatureRange":"5–35°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 cactus or succulent mix with added perlite or coarse sand.
Maintenance Level
- Maintenance Level: low
- Toughness Level: high
- Pruning Frequency: As needed, typically every 6–12 months or after flowering.
- Pruning Intensity: Moderate; remove up to one-third of growth if necessary.
Care Details
Ideal Sunlight Coverage:
Bright, direct sunlight for 6–8 hours daily; adjust to partial shade in intense summer heat to prevent scorching.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; provide shade during peak midday hours in summer; for indoor plants, place near south-facing windows.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant weekly for even light exposure; use sheer curtains to diffuse harsh sunlight; monitor for signs of sunburn.
Watering
every 7–10 days in summer, every 3–4 weeks in winter
Water deeply but infrequently; ensure soil dries fully between waterings; avoid overhead watering to prevent fungal issues.
Soil
well-draining, sandy or gritty soil mix
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use pots with drainage holes; avoid waterlogged soil; ensure soil dries between waterings.
Temperature
Prefers warm temperatures (65–85°F or 18–29°C); tolerates mild frost but thrives in stable, warm conditions.
Avoid sudden temperature fluctuations; protect from drafts; maintain consistent warmth during active growth.
Fertilizing
every 2–3 months during active growth with a balanced, diluted cactus fertilizer
Fertilize only during active growth; flush soil occasionally to prevent salt buildup; use a cactus-specific fertilizer for best results.
Propagation
Methods
Stem cuttings; leaf cuttings can also be used but are slower.
Step-by-Step Propagation Guide
- Cut a healthy stem.
- Let it callus for 1–2 days.
- Plant in moist propagation medium.
- Keep lightly moist until roots form.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain temperatures around 70–75°F (21–24°C).
Medium
Well-draining mix of cactus soil and perlite or sand.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots typically form in 3–6 weeks; new growth may take 2–3 months.
Tools Needed
Sharp, sterile knife or scissors, rooting hormone (optional), small pots, well-draining soil mix.
Quick Tips
Allow cuttings to callus before planting; use bottom heat to speed up rooting; avoid overwatering new cuttings.
Pruning & Repotting
Pruning Guide
Method
Cut stems just above a leaf node or junction; remove dead or leggy growth selectively.
Pruning Plan
Prune to maintain shape, remove dead or damaged growth, and encourage bushier growth.
Tools
Sterile pruning shears or sharp knife, gloves (due to sap), clean cloth for wiping tools.
Checklist
Sterilize tools; wear gloves; prune during active growth; dispose of cuttings carefully (sap is irritating).
Repotting Guide
Best Season
Spring, before the active growth period begins.
Pot Size
Increase pot size by 1–2 inches (2.5–5 cm) in diameter.
Method
Remove plant gently; trim any dead roots; repot in fresh, well-draining soil; ensure the new pot has drainage holes.
Suggestions
Repot every 2–3 years or when roots fill the pot; essential for healthy growth due to its succulent nature.
Checklist
Check root bound status; use fresh soil mix; ensure proper drainage; avoid over-potting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply at the base; ensure drainage; adjust frequency by season.
How to Apply Water Properly
Water directly at the root zone until water drains from the bottom; ensure excess water exits the pot; water in the morning to allow foliage to dry; avoid waterlogging.
Watering Schedule Tips
Water thoroughly during active growth (spring/summer) every 7–10 days, allowing soil to dry completely between waterings. Reduce frequency to every 3–4 weeks in winter, or when growth slows.
Soil Improvement
Add coarse sand, perlite, or pumice to commercial potting soil to enhance drainage; avoid heavy clay soils.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or leaf drop in cold stress; scorching or wilting in excessive heat.
Cold Stress
Low temperatures slow growth and may cause root rot due to reduced evaporation and increased moisture retention.
Solution: Move to a warmer location; reduce watering; provide insulation with mulch or protective coverings.
Hot Stress
Excessive heat can lead to dehydration, sunburn, and wilting, especially if combined with inadequate water.
Solution: Provide shade during peak heat; increase watering frequency; ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Check growth phase before fertilizing; dilute fertilizer properly; avoid over-fertilization; stop in winter.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during spring and summer; avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicEuphorbia regis-jubae is toxic to cats, with the latex and plant parts causing severe irritation to the oral cavity, digestive system, and skin. Ingestion can result in significant health issues requiring prompt veterinary care.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicThe latex and plant parts of Euphorbia regis-jubae are toxic to dogs, causing severe irritation to the mouth, gastrointestinal tract, and skin. Ingestion can lead to significant discomfort and potential systemic toxicity.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
ToxicThe latex of Euphorbia regis-jubae contains diterpene esters, which are highly irritating to human skin, eyes, and mucous membranes. Ingestion can cause severe gastrointestinal distress and systemic effects.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if touched or eaten
Frequently Asked Questions
Q: Is Euphorbia regis-jubae toxic to pets?
A: Yes, it is toxic to both dogs and cats.
Q: How often should I water this plant?
A: Water sparingly, allowing the soil to dry out between waterings.
Q: Does this plant require full sun?
A: It prefers full sun but can tolerate partial shade.
Quick Reference
| Family: | Euphorbiaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days in summer, e |
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