Tansy (Tanacetum vulgare) x 100+ seeds

🌿 Growing Tansy (Tanacetum vulgare)

Tansy is a hardy perennial herb known for its fern-like leaves and bright yellow flowers. Its often grown for pest control, ornamental use, and traditional herbal purposes.

Important Note

Tansy can become invasive if not controlled

It contains toxic compounds (especially if ingested in large amounts)

Best used carefully and not for casual consumption

🌱 When to Plant

Sow in spring or early autumn

In mild climates like South Africa, it can establish most of the year if protected from extremes

🌿 Step 1: Planting

From seed:

Sow on the surface or lightly cover (needs light to germinate)

Keep soil moist

Germination: 23 weeks

From division (easier method):

Split established plants in spring

Replant immediately

Step 2: Light & Location

Full sun is best

Tolerates partial shade

Prefers open, well-ventilated areas

🌱 Step 3: Soil Requirements

Well-draining soil (important)

Tolerates poor or sandy soil

Ideal pH: neutral to slightly alkaline

💧 Step 4: Watering

Water regularly while establishing

Once mature, it is drought-tolerant

Avoid overwatering

🌿 Step 5: Growth & Maintenance

Can grow 11.5 meters tall

Spread via roots and seeds

Cut back regularly to control size

Remove flowers if you want to limit spreading

Step 6: Harvesting

Harvest leaves anytime during growing season

Best before flowering for strongest properties

Dry leaves in a cool, shaded place

🛡 Pests & Benefits

Naturally repels insects (ants, flies, some pests)

Rarely affected by diseases

Can be used as a companion plant in gardens

👍 Tips for Success

Plant in a contained area or pot to control spread

Prune often to keep it manageable

Wear gloves when handling if you have sensitive skin

🧠 Bottom Line

Tansy is tough, low-maintenance, and useful, but it needs control and caution due to its aggressive growth and toxicity.