Karataka, African basil, Carpetweed
ocimum kilimandscharicum
Also known as: ["African basil","Karataka","Carpetweed"]
Overview
A species of basil native to East Africa, known for its strong camphor-like aroma and ornamental foliage.
Benefits & Perks
["fragrant flowers","medicinal use","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Ocimum |
| Botanical Name: | Ocimum kilimandscharicum |
Plant Characteristics
Basic Information
- Category: Herbs & Weeds
- Suitable Location: indoor pot in bright, sunny location or outdoor garden bed in warm climates
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–30°C"}
- Hardiness: {"zones":"9–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent root rot.
- Soil Type: Well-draining, loamy soil with added organic matter.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Every 4–6 weeks during growing season; as needed to maintain shape.
- Pruning Intensity: Moderate; remove up to one-third of growth at a time.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates partial shade but may become leggy.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun in hot climates; ensure good air circulation indoors.
Care Requirements
Care Difficulty
easyeasy
Sunlight
full sun to partial shade
Rotate plant for even growth; use sheer curtains to filter intense light; avoid direct sun through glass in summer.
Watering
every 7–10 days, allowing soil to dry between waterings
Water thoroughly but infrequently; ensure soil dries between waterings; avoid wetting foliage.
Soil
well-draining, sandy loam with moderate organic content
pH: Slightly acidic to neutral (6.0–7.0).
Use a mix of potting soil and perlite; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers 65–85°F (18–29°C); can tolerate brief dips to 50°F (10°C) but thrives in warmth.
Avoid drafty areas; use a thermometer to monitor; adjust watering with temperature changes.
Fertilizing
every 4–6 weeks during active growth with balanced liquid fertilizer
Apply fertilizer after watering; flush soil occasionally to prevent salt buildup; stop fertilizing in fall.
Propagation
Methods
Stem cuttings in water or moist soil.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting.
- Remove lower leaves.
- Place in medium.
- Keep moist and warm.
Best Time: Spring or early summer when growth is active.
Environment
Warm (70–75°F), high humidity, indirect light.
Medium
Well-draining soil mix or water with occasional root hormone application.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots in 2–4 weeks; new growth in 6–8 weeks.
Tools Needed
Pruners, rooting hormone, small pots, water or soil mix.
Quick Tips
Use healthy, non-flowering stems; change water every few days if using water propagation; maintain humidity with a plastic bag.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips or cut stems just above a leaf node.
Pruning Plan
Regular pruning encourages bushier growth and prevents legginess; remove spent flowers to promote continuous blooming.
Tools
Clean, sharp pruners or scissors.
Checklist
Sanitize tools; prune in early morning; remove dead/damaged growth; shape evenly.
Repotting Guide
Best Season
Spring, before active growth begins.
Pot Size
One size larger pot (e.g., +2 inches in diameter).
Method
Remove plant gently; trim roots if needed; place in new pot with fresh soil; water lightly.
Suggestions
Repot every 1–2 years or when roots fill the pot; promotes fresh soil and space for growth.
Checklist
Choose appropriate pot; prepare new soil; handle roots carefully; 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 at the base of the plant, allowing water to penetrate the root zone; ensure excess drains away; water in the morning to reduce evaporation.
Watering Schedule Tips
Water deeply when the top 1–2 inches of soil are dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Yellowing leaves (cold stress), wilting or leaf drop (heat stress), stunted growth.
Cold Stress
Slows growth, causes leaf discoloration, and increases susceptibility to pests and diseases.
Solution: Move to a warmer location; cover if frost is expected; reduce watering in cool conditions.
Hot Stress
Leaves may wilt, curl, or drop; growth may slow; essential oils may diminish.
Solution: Provide shade during peak heat; increase humidity; water more frequently but avoid waterlogging.
Fertilizing Guide
Fertilizing Checklist
Check season; dilute fertilizer; apply to moist soil; avoid contact with leaves.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring/summer); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Slightly ToxicOcimum kilimandscharicum is slightly toxic to cats, primarily due to its essential oil content. Cats are more sensitive to essential oils, and ingestion may lead to mild to moderate gastrointestinal or neurological symptoms.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if ingested
Dogs
Slightly ToxicWhile not highly toxic, Ocimum kilimandscharicum can cause mild gastrointestinal upset in dogs due to its essential oil content, particularly camphor. The plant is not typically dangerous but should be kept out of reach of pets to prevent accidental ingestion.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if ingested
Humans
Non-toxicOcimum kilimandscharicum, commonly known as Karoo rose or African basil, is generally considered non-toxic to humans. However, excessive consumption may lead to mild gastrointestinal discomfort due to its high concentration of camphor and other essential oils.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten in large quantities
Frequently Asked Questions
Q: Is Ocimum kilimandscharicum edible?
A: While not commonly consumed, its leaves can be used sparingly in cooking for their camphor-like flavor.
Q: Does this plant require full sun?
A: Yes, it thrives in full sun but can tolerate partial shade.
Q: What are the medicinal uses of Ocimum kilimandscharicum?
A: It is traditionally used for its antimicrobial and insect-repellent properties.
Quick Reference
| Family: | Lamiaceae |
| Care: | easy |
| Light: | full sun to partial shade |
| Water: | every 7–10 days, allowing so |
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