Star-of-Bethlehem
hyoseris radiata
Also known as: ["Bethlehem Star","False Star-of-Bethlehem"]
Overview
A herbaceous perennial plant with basal rosettes of leaves and yellow star-shaped flowers, native to the Mediterranean region.
Benefits & Perks
["wildlife attractant (bees, butterflies, birds)","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Hyoseris |
| Botanical Name: | Hyoseris radiata |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: rock gardens, sunny borders, or containers in full sun
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°C"}
- Hardiness: {"zones":"8–10"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy loam with added organic matter; cactus or succulent potting mix is ideal.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually after flowering or every 2–3 years to rejuvenate growth.
- Pruning Intensity: Moderate; remove up to one-third of old growth to stimulate new shoots.
Care Details
Ideal Sunlight Coverage:
Bright, direct sunlight for 6–8 hours daily, especially in morning and late afternoon; partial shade during peak midday hours in hot climates.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight to prevent scorching; provide shade during extreme heat; place outdoors in spring/summer and indoors or in a sheltered spot in winter.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant weekly for even growth; use sheer curtains to filter harsh midday sun; avoid sudden light changes.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly until it drains from the bottom, avoid frequent shallow watering, and ensure the soil dries out between waterings to prevent root rot.
Soil
well-draining, sandy loam with some organic matter
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a mix with good aeration; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers warm temperatures between 65–85°F (18–29°C); tolerates mild frosts but thrives in stable, warm conditions.
Avoid placing near drafty windows or air vents; maintain consistent temperatures; protect from sudden temperature drops.
Fertilizing
every 4–6 weeks during growing season, none in winter
Apply fertilizer to moist soil to prevent root burn; flush soil occasionally to prevent salt buildup; reduce frequency in dormant periods.
Propagation
Methods
Stem cuttings or division of offsets; stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take a healthy stem cutting.
- Let it callus for a few days.
- Dip in rooting hormone.
- Plant in propagation medium.
- Keep moist and warm.
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 perlite and peat moss or cactus potting mix.
Hormone
Rooting hormone is recommended to speed up root development.
Timeline
Roots typically develop in 3–6 weeks; new growth may appear after 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining medium, misting bottle.
Quick Tips
Allow cuttings to callus before planting; maintain high humidity with a plastic cover; use clean tools to prevent disease.
Pruning & Repotting
Pruning Guide
Method
Selective pruning of stems to shape the plant; remove dead or crossing branches.
Pruning Plan
Prune to maintain shape, remove dead or damaged growth, and encourage bushier development; focus on post-flowering or early spring.
Tools
Pruning shears, sterilizing solution, gloves.
Checklist
Sterilize tools; prune dead or damaged growth; shape the plant; clean up debris after pruning.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Increase pot size by 1–2 inches (2.5–5 cm) in diameter.
Method
Remove the plant gently, trim any circling roots, place in a slightly larger pot with fresh, well-draining soil, and water lightly.
Suggestions
Repot every 2–3 years or when the plant becomes root-bound; beneficial for refreshing soil and encouraging growth.
Checklist
Choose appropriate pot size; prepare fresh soil mix; handle roots carefully; water lightly after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure drainage; adjust frequency by season.
How to Apply Water Properly
Water directly at the root zone, ensuring even moisture distribution without saturating the soil. Water early in the morning to minimize evaporation and allow foliage to dry before nightfall. Ensure excess water drains away to prevent waterlogging.
Watering Schedule Tips
Water deeply once every 7–10 days during active growth in spring and summer; reduce frequency to every 2–3 weeks in fall and winter, allowing soil to dry completely between waterings.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate compost for fertility; ensure soil is loose and airy.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or wilting in excessive heat; stunted growth or leaf drop in cold stress.
Cold Stress
Low temperatures slow growth and can cause leaf damage or dieback; prolonged cold may lead to root rot if soil remains wet.
Solution: Move to a warmer location or provide frost protection; ensure soil is well-drained to prevent cold-induced rot.
Hot Stress
Excessive heat can cause leaf scorch, wilting, or reduced flowering; may lead to dehydration if water needs are not met.
Solution: Provide partial shade during peak heat; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Use diluted fertilizer; apply during active growth; avoid winter feeding; flush soil periodically.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during spring and summer; avoid fertilizing in fall and winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicHyoseris radiata is not considered toxic to cats. However, consumption of large quantities may cause mild digestive disturbances due to its fibrous composition.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten in large quantities
Dogs
Non-toxicHyoseris radiata is not considered toxic to dogs. However, ingestion of large amounts may lead to mild gastrointestinal upset due to its fibrous nature.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten in large quantities
Humans
Non-toxicHyoseris radiata is generally considered non-toxic to humans. However, consuming large quantities may cause mild gastrointestinal discomfort due to its high fiber content and potential irritant properties.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten in large quantities
Frequently Asked Questions
Q: Is Hyoseris radiata toxic to pets?
A: Yes, it is mildly toxic to dogs and cats.
Q: How should I care for Hyoseris radiata?
A: Provide moderate watering, well-drained soil, and full sun to partial shade.
Q: Does Hyoseris radiata attract wildlife?
A: Yes, it attracts bees, butterflies, and birds.
Quick Reference
| Family: | Asteraceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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