Spiderwort, Benghal Dayflower

commelina benghalensis

Also known as: ["Benghal Dayflower","Spiderwort"]

Family: Commelinaceae Genus: Commelina Category: Herbs & Weeds

Overview

A spreading herbaceous plant with distinctive blue flowers and oval leaves, often considered a weed in tropical and subtropical regions.

Benefits & Perks

["fast growing","wildlife attractant (bees, butterflies, birds)","drought tolerant"]

Botanical Classification

Phylum: Magnoliophyta
Class: Liliopsida
Order: Commelinales
Family: Commelinaceae
Genus: Commelina
Botanical Name: Commelina benghalensis

Plant Characteristics

Basic Information
  • Category: Herbs & Weeds
  • Suitable Location: garden bed or container in warm, humid environments
  • Suitable For:
    Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"15–35°C"}
  • Hardiness: {"zones":"9–11"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Well-draining potting mix with added perlite or sand for aeration.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: As needed, typically every 2–3 months or after flowering.
  • Pruning Intensity: Moderate; remove up to one-third of growth if overgrown.
Care Details

Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; tolerates partial shade but may become leggy.

Sunlight Tolerance Tips:
Acclimate gradually to intense light; protect from direct midday sun to prevent scorching; adjust placement based on indoor/outdoor conditions.

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

Care Requirements

Care Difficulty
easy

easy

Sunlight

partial shade to full sun

Rotate plant for even growth; use sheer curtains for filtered light; avoid direct afternoon sun.

Watering

every 7–10 days during active growth, reduce in winter

Water thoroughly but infrequently; ensure good drainage; adjust based on season and growth stage.

Soil

well-draining, fertile loam

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

Ensure pots have drainage holes; avoid compacted soil; refresh soil annually.

Temperature

Prefers 65–85°F (18–29°C); thrives in warm, humid conditions; sensitive to cold drafts.

Avoid cold drafts; maintain consistent warmth; protect from extreme heat.

Fertilizing

every 4–6 weeks during growing season

Dilute fertilizer to prevent burn; fertilize during active growth; flush soil occasionally to prevent salt buildup.

Propagation

Methods

Stem cuttings in water or soil; division of clumps is also effective.

Step-by-Step Propagation Guide
  1. Take a healthy cutting.
  2. Remove lower leaves.
  3. Place in medium.
  4. Keep moist and warm.
  5. Transplant once rooted.

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

Environment

Warm, humid environment with indirect light; maintain consistent moisture.

Medium

Well-draining soil mix or water; can also use perlite or sand for rooting.

Hormone

Optional but can speed up rooting; rooting powder or gel is recommended.

Timeline

Roots develop in 2–4 weeks; new growth appears in 4–6 weeks.

Tools Needed

Pruners, rooting hormone (optional), containers, well-draining medium.

Quick Tips

Use healthy, non-flowering stems; keep cuttings out of direct sun; maintain humidity for faster rooting.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips for bushier growth; cut just above a leaf node or lateral branch.

Pruning Plan

Prune to maintain shape, encourage bushiness, and remove leggy or damaged growth.

Tools

Clean, sharp scissors or pruning shears.

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 1–2 inches larger in diameter than the current one.

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; beneficial for growth and soil freshness.

Checklist

Prepare new pot; trim roots if necessary; use fresh soil; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water thoroughly; ensure drainage; adjust for season.

How to Apply Water Properly

Water directly at the root zone until water drains from the bottom; avoid wetting foliage; water in the morning to reduce evaporation.

Pro Tip: Use room temperature water to avoid shocking the roots.
Watering Schedule Tips

Water moderately, allowing the top inch of soil to dry between waterings. Reduce frequency in winter to prevent root rot.

Soil Improvement

Add perlite or coarse sand for drainage; incorporate organic matter like compost for fertility.

Temperature Stress Management
Signs of Temperature Issues

Yellowing leaves, wilting, or stunted growth in cold; leaf scorch or browning in excessive heat.

Cold Stress

Growth slows or halts; leaves may turn yellow or drop; risk of root rot due to reduced uptake.

Solution: Move to a warmer location; insulate pots; avoid overwatering; use a space heater if necessary.

Hot Stress

Leaves may scorch, wilt, or drop; soil dries out quickly; increased pest susceptibility.

Solution: Provide shade during peak heat; increase humidity with misting or pebble trays; water more frequently.

Fertilizing Guide
Fertilizing Checklist

Check season; dilute fertilizer; apply to moist soil; avoid foliage contact.

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

Yellowing leaves in Commelina benghalensis may indicate nutrient deficiencies, overwatering, or pest infestations, affecting photosynthesis and overall plant health.

Wilting in Commelina benghalensis can result from water stress, either due to drought or waterlogging, disrupting nutrient uptake and leading to reduced growth.

Leaf spots on Commelina benghalensis are often caused by fungal or bacterial pathogens, which can reduce photosynthetic efficiency and lead to leaf drop.

Rotting, particularly root or stem rot, can occur in Commelina benghalensis due to excessive moisture or fungal infections, leading to plant decline and death.

Toxicity Warning

Cats
Slightly Toxic

Cats that ingest Commelina benghalensis may experience mild gastrointestinal symptoms. The plant is not highly toxic but can cause discomfort.

⚠️ Symptoms:
vomiting diarrhea lethargy
🌿 Toxic Parts:
leaves stems roots
⚡ Toxic If:

if eaten

Keep cats away from the plant. Seek veterinary advice if ingestion is suspected.
Dogs
Slightly Toxic

Ingestion of Commelina benghalensis by dogs can lead to mild gastrointestinal upset. The plant is not considered highly toxic but can cause discomfort.

⚠️ Symptoms:
vomiting diarrhea lethargy
🌿 Toxic Parts:
leaves stems roots
⚡ Toxic If:

if eaten

Keep pets away from the plant. Contact a veterinarian if ingestion is suspected.
Humans
Slightly Toxic

Commelina benghalensis contains compounds that can cause mild gastrointestinal distress when ingested. The plant's effects are generally not life-threatening but can lead to discomfort.

⚠️ Symptoms:
nausea vomiting diarrhea abdominal pain
🌿 Toxic Parts:
leaves stems roots
⚡ Toxic If:

if eaten

Avoid ingestion of any parts of the plant. Wash hands thoroughly after handling.
Important: Keep this plant out of reach of children and pets. If ingestion occurs, contact poison control or veterinary services immediately.

Frequently Asked Questions

Q: Is Commelina benghalensis toxic to pets?

A: There is insufficient data on its toxicity to pets.

Q: How does this plant spread?

A: It spreads via stolons and seeds, making it highly invasive in some regions.

Q: Can this plant be grown indoors?

A: It is primarily an outdoor plant due to its vigorous growth habit.

Quick Reference
Family: Commelinaceae
Care: easy
Light: partial shade to full sun
Water: every 7–10 days during activ
Suitable For: ["outdoor landscapers","wildlife supporters (attracts bees, butterflies, birds)"]
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