St. Paul's wort

sigesbeckia orientalis

Also known as: ["St. Paul's wort","oriental sigesbeckia"]

Family: Asteraceae Genus: Sigesbeckia Category: Herbs & Weeds

Overview

A small annual herbaceous plant in the family Asteraceae, native to tropical and subtropical regions.

Benefits & Perks

["disease resistant","fast growing","wildlife attractant (bees, butterflies, birds)"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Sigesbeckia
Botanical Name: Sigesbeckia orientalis

Plant Characteristics

Basic Information
  • Category: Herbs & Weeds
  • Suitable Location: garden bed or container in a location with partial shade
  • Suitable For:
    Busy People (low Maintenance) Outdoor Landscapers
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"10–30°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 perlite or sand for aeration.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: moderate
  • Pruning Frequency: As needed, but lightly prune after flowering or in early spring.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary.
Care Details

Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate partial shade, especially in hot climates.

Sunlight Tolerance Tips:
Acclimate gradually to direct sun to prevent scorching; place in filtered light outdoors; move indoors in extreme heat or cold.

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

Care Requirements

Care Difficulty
easy

easy

Sunlight

partial shade to full sun

Avoid direct midday sun; rotate plant for even growth; provide shade during peak heat.

Watering

every 7–10 days, allowing soil to dry slightly between waterings

Water thoroughly but infrequently; ensure proper drainage; avoid wetting foliage.

Soil

well-draining, loamy soil with moderate organic content

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

Ensure pots have drainage holes; avoid heavy clay soils; topdress with compost annually.

Temperature

Prefers 65–75°F (18–24°C); tolerates mild fluctuations but avoid prolonged exposure to extremes.

Protect from frost; avoid sudden temperature changes; maintain moderate warmth.

Fertilizing

every 4–6 weeks during growing season with balanced liquid fertilizer

Dilute fertilizer to prevent burn; fertilize only when actively growing; flush soil occasionally to prevent salt buildup.

Propagation

Methods

Stem cuttings in water or moist soil.

Step-by-Step Propagation Guide
  1. Take a 4–6 inch cutting.
  2. Remove lower leaves.
  3. Place in medium.
  4. Keep moist and warm.

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

Environment

Warm, humid, and bright indirect light; protect from direct sun.

Medium

Well-draining soil mix or water with occasional changes.

Hormone

Optional but can speed up rooting.

Timeline

Roots typically form in 2–4 weeks; new growth in 6–8 weeks.

Tools Needed

Pruners, rooting hormone (optional), small pots, water or soil mix.

Quick Tips

Use healthy, non-flowering stems; keep consistently moist; provide bottom heat if possible.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips or cut stems just above a leaf node.

Pruning Plan

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

Tools

Clean, sharp pruners or scissors.

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 health.

Checklist

Check root bound status; prepare new pot with drainage; 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 directly at the root zone until water drains from the bottom; allow excess to drain away; water in the morning to reduce evaporation.

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

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

Soil Improvement

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

Temperature Stress Management
Signs of Temperature Issues

Wilting, leaf drop, or yellowing in cold; scorching or stunted growth in excessive heat.

Cold Stress

Slows growth, causes leaf drop, and may lead to root damage in freezing conditions.

Solution: Move to a warmer location; insulate pots; avoid cold drafts; protect from frost.

Hot Stress

Leaves may scorch, wilt, or drop; growth may slow due to excessive transpiration.

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

Fertilizing Guide
Fertilizing Checklist

Check growth phase; 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); cease in fall/winter.

Common Problems & Solutions

Yellowing leaves in Sigesbeckia orientalis may indicate nutrient deficiencies, overwatering, or pest infestations, which can disrupt photosynthesis and overall plant health.

Wilting in Sigesbeckia orientalis is often a sign of water stress, either due to drought or root issues, which can impair nutrient uptake and lead to plant decline.

Leaf spots on Sigesbeckia orientalis may be caused by fungal or bacterial pathogens, resulting in reduced photosynthetic efficiency and potential defoliation.

Rotting, particularly root or stem rot, can occur in Sigesbeckia orientalis due to excessive moisture or fungal infections, leading to tissue decay and plant death.

Toxicity Warning

Cats
Non-toxic

Sigesbeckia orientalis is not considered toxic to cats. There are no documented cases of toxicity in felines from exposure to this plant.

⚡ Toxic If:

Generally non-toxic

Monitor pets for any unusual behavior, but the plant is not expected to cause harm.
Dogs
Non-toxic

Sigesbeckia orientalis is not considered toxic to dogs. There are no documented cases of toxicity in canines from exposure to this plant.

⚡ Toxic If:

Generally non-toxic

Monitor pets for any unusual behavior, but the plant is not expected to cause harm.
Humans
Non-toxic

Sigesbeckia orientalis is not considered toxic to humans under normal circumstances. It has been used in traditional medicine for various ailments without significant toxicity reported.

⚡ Toxic If:

Generally non-toxic

While generally safe, it is advisable to consult a healthcare professional before using any plant medicinally.

Frequently Asked Questions

Q: Is Sigesbeckia orientalis toxic to pets?

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

Q: How do I care for Sigesbeckia orientalis?

A: It requires minimal care, thriving in full sun to partial shade with moderate watering.

Q: Does Sigesbeckia orientalis attract wildlife?

A: Yes, it attracts bees, butterflies, and birds due to its flowering nature.

Quick Reference
Family: Asteraceae
Care: easy
Light: partial shade to full sun
Water: every 7–10 days, allowing so
Suitable For: ["busy people (low maintenance)","outdoor landscapers"]
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