Cup-of-Rose
hibiscus martianus
Also known as: ["Hibiscus martianus"]
Overview
A unique species of hibiscus with cup-shaped flowers and distinctive foliage.
Benefits & Perks
["long-flowering","fragrant flowers","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Malvales |
| Family: | Malvaceae |
| Genus: | Hibiscus |
| Botanical Name: | Hibiscus martianus |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: indoor pot in a bright location or protected outdoor spot with partial shade
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–30°C"}
- Hardiness: {"zones":"9–11"}
- Misting: every 2–3 days during dry periods to maintain humidity
- Drainage: Fast-draining
- Soil Type: Well-draining, slightly acidic potting mix with added perlite or sand
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually in late winter or early spring; light pruning can be done after flowering if needed.
- Pruning Intensity: Moderate; remove up to one-third of old growth to rejuvenate the plant.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate some direct morning sun but avoid harsh afternoon sun, especially in summer.
Sunlight Tolerance Tips:
Acclimate gradually to direct sun if moving from low light; protect from intense midday sun; adjust placement seasonally to balance light needs.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
bright, indirect light with some direct morning sun
Rotate plant weekly for even growth; use sheer curtains to filter intense light; move outdoors in spring/summer for stronger light.
Watering
every 7–10 days during active growth, reducing to every 14–21 days in winter
Water thoroughly until it drains from the bottom; allow soil to dry between waterings; avoid wetting foliage to prevent fungal issues.
Soil
well-draining, slightly acidic potting mix with added perlite or sand
pH: 5.5–6.5
Ensure pots have drainage holes; avoid heavy clay soils; topdress with compost annually.
Temperature
Prefers 65–85°F (18–29°C); can tolerate brief dips to 50°F (10°C) but thrives in warmer conditions. Avoid sudden temperature fluctuations.
Avoid placing near drafty windows or air vents; maintain consistent room temperature; use a thermometer to monitor conditions.
Fertilizing
every 2–4 weeks during spring and summer with balanced liquid fertilizer, none in winter
Fertilize after watering to prevent root burn; flush soil occasionally to remove salt buildup; avoid overfertilizing to prevent leaf burn.
Propagation
Methods
Stem cuttings
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting.
- Remove lower leaves.
- Dip in rooting hormone.
- Plant in medium.
- Maintain humidity.
- Water lightly.
Best Time: Spring or early summer when the plant is actively growing
Environment
High humidity (70–80%), warm temperatures (70–75°F or 21–24°C), and indirect light
Medium
Well-draining mix of peat, perlite, and sand
Hormone
Recommended to use rooting hormone for faster root development
Timeline
Roots in 4–8 weeks; establish in new pot within 3–4 months
Tools Needed
Pruning shears, rooting hormone, small pots, plastic wrap or propagator
Quick Tips
Use healthy, non-flowering stems; keep soil consistently moist but not waterlogged; provide bottom heat for faster rooting.
Pruning & Repotting
Pruning Guide
Method
Selective pruning of stems to encourage branching; cut just above a leaf node or bud.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove dead/diseased parts. Focus on removing leggy stems and spent flowers.
Tools
Pruning shears, sterilizing solution, gloves
Checklist
Sterilize tools; prune dead/damaged stems; cut above leaf nodes; clean up debris
Repotting Guide
Best Season
Early spring before new growth begins
Pot Size
One size larger pot (e.g., +2–3 inches in diameter)
Method
Remove plant gently; trim roots if necessary; place in new pot with fresh soil; water lightly after repotting
Suggestions
Repot every 2–3 years or when roots fill the pot; necessary to refresh soil and provide space for growth.
Checklist
Choose appropriate pot; prepare fresh soil mix; inspect roots; water after repotting
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; avoid wetting leaves
How to Apply Water Properly
Water directly at the root zone, ensuring even saturation. Water early in the morning to minimize evaporation and allow foliage to dry. Ensure excess water drains away to prevent waterlogging.
Watering Schedule Tips
Water deeply when the top 1–2 inches of soil are dry; reduce frequency in winter to prevent root rot. Adjust based on humidity and temperature.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate organic matter like compost for fertility; use a cactus or succulent mix as a base.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis (yellowing leaves), leaf drop, stunted growth, or bud drop in extreme cold or heat.
Cold Stress
Slows growth, causes leaf drop, and may lead to root damage if temperatures drop below 50°F (10°C) for extended periods.
Solution: Move to a warmer location; protect from drafts; use a space heater if necessary; avoid overwatering in cold conditions.
Hot Stress
Wilting, leaf scorch, reduced flowering, and increased water demand in excessive heat above 90°F (32°C).
Solution: Increase watering frequency; provide shade during peak heat; use mulch to retain soil moisture; ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Use diluted fertilizer; fertilize during active growth; flush soil periodically
Fertilizing Method
Use a balanced liquid fertilizer (10-10-10) diluted to half strength every 4–6 weeks during growing season (spring/summer); reduce or stop in fall/winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicHibiscus martianus is not considered toxic to cats. There are no documented cases of adverse effects resulting from ingestion or contact with this plant species in felines.
⚡ Toxic If:
Generally non-toxic
Dogs
Non-toxicHibiscus martianus is not considered toxic to dogs. There are no documented cases of adverse effects resulting from ingestion or contact with this plant species in canines.
⚡ Toxic If:
Generally non-toxic
Humans
Non-toxicHibiscus martianus is not known to exhibit toxic properties to humans under normal conditions. It is commonly cultivated as an ornamental plant and has no reported adverse effects when handled or ingested in typical amounts.
⚡ Toxic If:
Generally non-toxic
Frequently Asked Questions
Q: How often should I water Hibiscus martianus?
A: Water when the top inch of soil is dry, typically every 7-10 days, depending on conditions.
Q: Does Hibiscus martianus require full sun?
A: Yes, it thrives in full sun to partial shade.
Q: Is Hibiscus martianus suitable for indoor growing?
A: Yes, with adequate light and humidity, it can be grown indoors.
Quick Reference
| Family: | Malvaceae |
| Care: | moderate |
| Light: | bright, indirect light with so |
| Water: | every 7–10 days during activ |
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