Haradjan's Tansy

tanacetum haradjanii

Also known as: ["Haradjan's Tansy"]

Family: Asteraceae Genus: Tanacetum Category: Flowers

Overview

A perennial herbaceous plant with aromatic foliage and daisy-like flowers, native to Iran.

Benefits & Perks

["fragrant flowers","wildlife attractant (bees, butterflies, birds)","drought tolerant","low maintenance"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Tanacetum
Botanical Name: Tanacetum haradjanii

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: border plantings, rock gardens, or containers in full sun
  • Suitable For:
    Beginners Busy People (low Maintenance) Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–35°C"}
  • Hardiness: {"zones":"5–9"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent root rot.
  • Soil Type: Well-draining, sandy loam with some organic matter.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: high
  • Pruning Frequency: Annually in early spring or after flowering.
  • Pruning Intensity: Moderate to heavy, depending on desired shape and size.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily). Adjust to partial shade in extreme summer heat.

Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight. Protect from harsh midday sun in hot climates. Ensure good air circulation to prevent sunburn.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor soil conditions or overwatering.

Care Requirements

Care Difficulty
easy

moderate

Sunlight

full sun to partial shade

Use shade cloth in extreme heat; rotate plant for even light exposure; avoid sudden light changes.

Watering

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

Water deeply but infrequently; avoid waterlogged soil; ensure good drainage.

Soil

well-draining, sandy loam with some organic matter

pH: Slightly alkaline to neutral (pH 6.5–7.5).

Use gritty mix; avoid heavy clay soils; ensure pots have drainage holes.

Temperature

Prefers cool to moderate temperatures (60–75°F or 15–24°C). Tolerates mild frosts but avoid prolonged freezing.

Protect from frost; avoid placing near heat sources; maintain consistent temperatures.

Fertilizing

every 4–6 weeks during spring and summer

Fertilize lightly to prevent leggy growth; stop feeding in late summer to prepare for dormancy; water before applying fertilizer.

Propagation

Methods

Stem cuttings or division.

Step-by-Step Propagation Guide
  1. Take 4–6 inch cuttings.
  2. Remove lower leaves.
  3. Dip in rooting hormone.
  4. Plant in medium.
  5. Maintain humidity.

Best Time: Early spring or late summer when the plant is actively growing.

Environment

Warm (70–75°F or 21–24°C), high humidity (70–80%), and bright indirect light.

Medium

Well-draining mix of perlite and peat moss or cactus mix.

Hormone

Optional but recommended for faster rooting.

Timeline

Roots develop in 3–4 weeks; establish in 2–3 months.

Tools Needed

Pruning shears, rooting hormone, small pots, misting spray bottle.

Quick Tips

Use healthy, non-flowering stems; maintain consistent moisture; provide bottom heat for faster rooting.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips for bushiness; cut back stems to encourage new growth.

Pruning Plan

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

Tools

Pruning shears, clean knife.

Checklist

Sterilize tools; prune dead/damaged growth; shape plant; clean up debris.

Repotting Guide
Best Season

Early spring before new growth begins.

Pot Size

Increase pot size by 2–3 inches in diameter.

Method

Remove plant gently; trim roots if necessary; repot in fresh, well-draining soil; ensure drainage holes are clear.

Suggestions

Repot every 2–3 years or when roots fill the container.

Checklist

Check root bound status; use fresh soil; ensure good drainage; water lightly after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture before watering; water deeply; ensure drainage; reduce winter watering.

How to Apply Water Properly

Water at the base of the plant, ensuring moisture reaches the root zone. Water early in the day to minimize evaporation and fungal issues. Allow excess water to drain away completely.

Pro Tip: Use a watering can with a long spout to direct water precisely to the root zone, avoiding foliage.
Watering Schedule Tips

Water sparingly, allowing soil to dry out completely between waterings. Reduce frequency in winter to once every 3–4 weeks.

Soil Improvement

Add perlite or coarse sand for drainage; incorporate compost for fertility; ensure soil is not compacted.

Temperature Stress Management
Signs of Temperature Issues

Wilting, leaf drop, or browning leaf edges in excessive heat; stunted growth or blackened stems in cold stress.

Cold Stress

Low temperatures slow growth and can cause root damage or dieback, especially in wet soil.

Solution: Provide winter protection with mulch; ensure well-drained soil; move potted plants to a sheltered location.

Hot Stress

Excessive heat can lead to wilting, leaf scorch, or reduced flowering if not accompanied by adequate water.

Solution: Provide afternoon shade; increase watering frequency; use mulch to retain soil moisture.

Fertilizing Guide
Fertilizing Checklist

Use diluted fertilizer; apply during active growth; avoid winter feeding.

Fertilizing Method

Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during the growing season (spring to early fall). Avoid fertilizing in winter.

Common Problems & Solutions

Yellow leaves in Tanacetum haradjanii may indicate nutrient deficiencies, overwatering, or pest infestations, affecting the plant's photosynthetic efficiency and overall health.

Wilting in Tanacetum haradjanii can result from water stress, either due to under or overwatering, disrupting the plant's ability to maintain turgor pressure and leading to reduced growth.

Leaf spots on Tanacetum haradjanii may be caused by fungal or bacterial infections, leading to reduced photosynthesis and potential defoliation if left untreated.

Rotting, particularly root or stem rot, can occur in Tanacetum haradjanii if the soil is excessively moist, leading to decay of plant tissues and potential death of the plant.

Toxicity Warning

Cats
Slightly Toxic

Cats are sensitive to pyrrolizidine alkaloids, which can cause liver damage and other systemic effects upon ingestion. Even small amounts may pose a risk.

⚠️ Symptoms:
vomiting loss of appetite jaundice liver failure
🌿 Toxic Parts:
leaves flowers seeds
⚡ Toxic If:

if eaten

Prevent cats from accessing the plant. Seek immediate veterinary care if ingestion is suspected.
Dogs
Slightly Toxic

The pyrrolizidine alkaloids in Tanacetum haradjanii can lead to liver toxicity in dogs if consumed in large amounts. Chronic exposure may result in severe health issues.

⚠️ Symptoms:
vomiting diarrhea lethargy liver failure
🌿 Toxic Parts:
leaves flowers seeds
⚡ Toxic If:

if eaten

Keep plants out of reach of pets. Monitor for signs of ingestion and consult a veterinarian if exposure occurs.
Humans
Slightly Toxic

Tanacetum haradjanii contains pyrrolizidine alkaloids, which can cause liver damage if ingested in significant quantities over time. The plant's effects are generally mild but can be cumulative.

⚠️ Symptoms:
nausea vomiting abdominal pain liver damage
🌿 Toxic Parts:
leaves flowers seeds
⚡ Toxic If:

if eaten

Avoid ingestion. Use gloves when handling to prevent accidental consumption.
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 Tanacetum haradjanii toxic to pets?

A: It is mildly toxic to dogs and cats if ingested.

Q: How often should I water Tanacetum haradjanii?

A: Water sparingly, as it is drought tolerant and prefers well-drained soil.

Q: Does Tanacetum haradjanii attract wildlife?

A: Yes, it attracts bees, butterflies, and birds due to its fragrant flowers.

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