Spanish Broom
genista hispanica
Also known as: ["Spanish Broom","False Broom"]
Overview
A deciduous shrub native to the Iberian Peninsula, known for its bright yellow flowers and spiny stems.
Benefits & Perks
["fragrant flowers","wildlife attractant (bees, butterflies, birds)","drought tolerant","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Genista |
| Botanical Name: | Genista hispanica |
Plant Characteristics
Basic Information
- Category: Shrubs
- Suitable Location: rock garden, sunny border, or container in a sheltered spot
- Suitable For:
- Is Weed: No
- Allergenicity: moderate
Environmental Needs
- Climate: {"temperatureRange":"–12–35°C"}
- Hardiness: {"zones":"5–8"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent root rot.
- Soil Type: Well-draining, slightly alkaline soil with sand or grit added for aeration.
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 to rejuvenate the plant.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); adjust to partial shade in extreme summer heat.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh midday sun; ensure proper ventilation if indoors.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun
Use sheer curtains to filter intense light; rotate plant for even exposure; avoid sudden light changes.
Watering
every 7–10 days during active growth, less frequently in winter
Water deeply but infrequently; avoid overwatering; ensure excellent drainage.
Soil
well-drained, sandy or loamy soil with low fertility
pH: 6.0–7.5 (slightly acidic to slightly alkaline).
Ensure pots have drainage holes; avoid heavy clay soils; top-dress with gravel for extra drainage.
Temperature
Prefers cool to moderate temperatures (50–70°F or 10–21°C); tolerates mild frosts but avoid prolonged freezing.
Avoid drafty areas; protect from frost; maintain consistent temperatures.
Fertilizing
every 4–6 weeks during spring and summer, none in winter
Use a low-nitrogen fertilizer; fertilize only when actively growing; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Stem cuttings taken from semi-hardwood growth.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Apply rooting hormone.
- Plant in medium.
- Maintain humidity.
Best Time: Late spring to early summer when new growth is developing.
Environment
Warm (65–75°F or 18–24°C), high humidity (70–80%), and bright indirect light.
Medium
Well-draining mix of perlite and peat moss or cactus/succulent potting mix.
Hormone
Recommended to use rooting hormone powder or gel for better success.
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, plastic bags or propagation dome.
Quick Tips
Use sharp, sterile tools; keep cuttings out of direct sun; maintain consistent moisture.
Pruning & Repotting
Pruning Guide
Method
Selective thinning and heading back to promote branching and compact growth.
Pruning Plan
Prune to maintain shape, encourage bushiness, and remove dead or weak growth.
Tools
Pruning shears, sharp knife, gloves.
Checklist
Disinfect tools; prune dead/damaged stems; shape the plant; clean up debris.
Repotting Guide
Best Season
Early spring before active growth starts.
Pot Size
Increase pot size by 1–2 inches in diameter; ensure good drainage holes.
Method
Remove old soil gently; trim any dead roots; repot in fresh, well-draining soil with a slightly larger pot.
Suggestions
Repot only when root-bound or soil is depleted; typically every 2–3 years.
Checklist
Check root boundness; prepare new pot; trim roots if needed; use fresh soil.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil dryness; water deeply; ensure drainage; adjust for season.
How to Apply Water Properly
Water directly at the root zone until water drains from the bottom, ensuring even saturation without pooling. Water in the morning to allow foliage to dry.
Watering Schedule Tips
Water sparingly, allowing soil to dry completely between waterings. Reduce frequency significantly during winter dormancy.
Soil Improvement
Add coarse sand, perlite, or pumice to improve drainage; incorporate organic matter like compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or browning leaf edges in excessive heat; stunted growth or leaf yellowing in cold stress.
Cold Stress
Slows metabolic processes, reduces nutrient uptake, and may cause root damage in freezing conditions.
Solution: Move to a sheltered location; provide frost protection; avoid overwatering in cold.
Hot Stress
Leaves may scorch, wilt, or drop; growth may slow due to excessive transpiration.
Solution: Provide partial shade; increase humidity; water deeply but infrequently during heatwaves.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to moist soil; avoid winter feeding.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during active growth (spring/summer); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicCats are particularly sensitive to the toxic compounds in Genista hispanica. Ingestion can result in severe gastrointestinal and neurological symptoms, which may require prompt medical intervention.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicIn dogs, ingestion of Genista hispanica can lead to more severe toxic effects due to their smaller size and different metabolic processes. The alkaloids can cause significant gastrointestinal upset and potential neurological disturbances.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicGenista hispanica contains toxic compounds, primarily alkaloids, which can cause mild to moderate gastrointestinal distress and neurological symptoms if ingested in significant quantities. The physiological impact is generally limited to temporary discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Genista hispanica toxic to pets?
A: Yes, it is toxic to dogs and cats.
Q: Does Spanish Broom attract wildlife?
A: Yes, it attracts bees, butterflies, and birds.
Q: How drought-tolerant is Genista hispanica?
A: It is highly drought-tolerant and thrives in dry conditions.
Quick Reference
| Family: | Fabaceae |
| Care: | moderate |
| Light: | full sun |
| Water: | every 7–10 days during activ |
Get Expert Care Tips
Download the Plantious app for personalized care reminders and plant identification!
Google Play App Store
