Uluhe

acmella caulirhiza

Also known as: ["Jamaican toothache plant","electric daisy"]

Family: Asteraceae Genus: Acmella Category: Herbs & Weeds

Overview

Acmella caulirhiza is a plant species known for its potential medicinal properties, particularly for its anesthetic effects when applied topically.

Benefits & Perks

["medicinal use","rare/collector’s item"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Acmella
Botanical Name: Acmella caulirhiza

Plant Characteristics

Basic Information
  • Category: Herbs & Weeds
  • Suitable Location: garden bed or container in a sunny to partially shaded area
  • Suitable For:
    Collectors & Enthusiasts Medicinal Plant Growers
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"15–30°C"}
  • Hardiness: {"zones":"8–11"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Well-draining potting mix with added organic matter.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: As needed, typically every 2–3 months or after flowering.
  • Pruning Intensity: Light to moderate; avoid removing more than one-third of the plant at once.
Care Details

Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; adjust to partial shade in intense summer sun.

Sunlight Tolerance Tips:
Gradually acclimate to stronger light; protect from direct midday sun to prevent scorching; place in a spot with filtered light if outdoors.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor soil or drainage issues.

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Rotate plant weekly for even growth; use sheer curtains to filter intense light; avoid direct sun exposure.

Watering

every 7–10 days during growing season, reduce in winter

Water thoroughly but infrequently; ensure soil dries slightly between waterings; avoid overwatering.

Soil

well-draining, loamy soil with moderate organic matter

pH: Slightly acidic to neutral (pH 6.0–7.0).

Use a mix with good drainage; avoid heavy clay soils; ensure pH is within range.

Temperature

Prefers 65–75°F (18–24°C); tolerates slight fluctuations but avoids extremes.

Avoid placing near drafty windows; maintain consistent room temperature; protect from heat sources.

Fertilizing

every 4–6 weeks during active growth with balanced liquid fertilizer

Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; avoid overfertilizing.

Propagation

Methods

Stem cuttings or division of rhizomes.

Step-by-Step Propagation Guide
  1. Take a healthy cutting.
  2. Apply rooting hormone.
  3. Plant in medium.
  4. Maintain humidity.
  5. Wait for roots.

Best Time: Spring or early summer when the plant is actively growing.

Environment

Warm, humid environment with indirect light and consistent moisture.

Medium

Well-draining potting mix with perlite or sand.

Hormone

Optional, but rooting hormone can improve success rates.

Timeline

Roots develop in 3–6 weeks; new growth appears in 2–3 months.

Tools Needed

Pruners, rooting hormone, small pots, misting spray bottle.

Quick Tips

Use sterile tools; maintain high humidity; keep out of direct sun.

Pruning & Repotting

Pruning Guide
Method

Pinch back stems or use clean cuts to shape the plant.

Pruning Plan

Remove dead or leggy growth to encourage bushier, healthier plants.

Tools

Pruning shears, sharp scissors, or your fingers for pinching.

Checklist

Sanitize tools; prune dead/damaged growth; shape as desired; dispose of clippings.

Repotting Guide
Best Season

Spring, before the active growing season begins.

Pot Size

Choose a pot one size larger (1–2 inches wider) than the current one.

Method

Remove plant gently; trim roots if needed; place in new pot with fresh soil; water lightly.

Suggestions

Repot every 2–3 years or when roots fill the pot; beneficial for root health and growth.

Checklist

Prepare new pot; loosen roots; add fresh soil; water; place in appropriate light.

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, ensuring moisture reaches the root zone; allow excess water to drain away; water in the morning to reduce evaporation.

Pro Tip: Use a watering can with a narrow spout to direct water to the roots without wetting foliage.
Watering Schedule Tips

Water deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.

Soil Improvement

Add perlite or sand for drainage; incorporate compost for fertility; ensure aeration with chunky materials.

Temperature Stress Management
Signs of Temperature Issues

Yellowing leaves, stunted growth, or wilting in response to sudden temperature changes.

Cold Stress

Slows growth and may cause root damage if exposed to prolonged cold below 50°F (10°C).

Solution: Move to a warmer location; insulate roots with mulch; avoid cold drafts.

Hot Stress

Leaves may wilt, curl, or develop brown edges in excessive heat above 85°F (29°C).

Solution: Provide shade; increase humidity; water more frequently but avoid waterlogging.

Fertilizing Guide
Fertilizing Checklist

Check growth phase; dilute fertilizer; apply to moist soil; rinse between feedings.

Fertilizing Method

Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring/summer); cease in fall/winter.

Common Problems & Solutions

Yellow leaves in Acmella caulirhiza may indicate nutrient deficiencies, overwatering, or pest infestations, affecting photosynthesis and overall plant health.

Wilting in Acmella caulirhiza can result from water stress, either due to overwatering causing root rot or underwatering leading to dehydration, both of which impair nutrient uptake.

Leaf spots on Acmella caulirhiza may be caused by fungal or bacterial infections, leading to reduced photosynthetic efficiency and potential defoliation if left untreated.

Rotting, particularly root rot, can affect Acmella caulirhiza when grown in poorly drained soil or overwatered conditions, leading to decay of roots and lower stems, ultimately causing plant death.

Toxicity Warning

Cats
Non-toxic

Acmella caulirhiza is not known to be toxic to cats under normal conditions of ingestion or contact.

⚡ Toxic If:

Not applicable

No specific safety precautions are required for cats exposed to Acmella caulirhiza.
Dogs
Non-toxic

Acmella caulirhiza is not known to be toxic to dogs under normal conditions of ingestion or contact.

⚡ Toxic If:

Not applicable

No specific safety precautions are required for dogs exposed to Acmella caulirhiza.
Humans
Non-toxic

Acmella caulirhiza is not known to exhibit toxic properties to humans under normal conditions of use.

⚡ Toxic If:

Not applicable

No specific safety precautions are required for handling or consumption of Acmella caulirhiza.

Frequently Asked Questions

Q: What are the traditional uses of Acmella caulirhiza?

A: It has been traditionally used for its anesthetic properties, particularly for pain relief when applied topically.

Q: Is Acmella caulirhiza easy to grow?

A: It requires moderate care and is not considered very easy for beginners.

Q: Does Acmella caulirhiza have any known side effects?

A: There is limited information on side effects, but it is generally considered safe for topical use.

Quick Reference
Family: Asteraceae
Care: moderate
Light: full sun to partial shade
Water: every 7–10 days during growi
Suitable For: ["collectors/enthusiasts","medicinal plant growers"]
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