Bull thistle.

Auf einen Blick

Pflegestufe

Einfach

Pflanzenart

Biennial herb

Licht

Full sun

Licht im Innenraum

Direkte Sonne

Gießen

Alle 7 bis 14 Tage

Endgröße

5 feet

Wachstum

Schnell

Winterhärte

USDA 3 bis 9

Blütezeit

Mid summer to early autumn

Pflege

This plant thrives in full sun and well drained soil without any special attention. Watch for its aggressive spread, as it can quickly take over garden beds if you don't remove the flower heads before they go to seed. It is quite hardy and rarely needs supplemental care once established.

Gießen

Water only during extended dry spells once the plant is established.

Düngen

Fertilizing is generally unnecessary as this plant grows vigorously in most soil conditions.

Schneiden

Remove flower heads before they turn to seed to prevent unwanted spread.

Umtopfen

This plant is rarely grown in containers, but if you do, move it to a larger pot if it becomes root bound.

Boden

Well drained, fertile soil

Boden-pH

6.0 to 7.5

Temperatur

-30 bis 35°C

Luftfeuchtigkeit

30 bis 70%

Trockenheitstoleranz

Mittel

Lebensdauer

Biennial, typically 2 years.

Duft

Leicht

Wildverbiss-Resistenz

Hoch

Sicherheit

Menschen

The plant is not toxic, but the sharp spines can cause significant skin irritation and puncture wounds.

Kinder

Keep children away from this plant because the long, stiff spines can easily pierce soft skin.

Kontaktallergene

Handling the plant without thick gloves will result in painful skin punctures from the sharp spines.

Allergene in der Luft

The fine, windborne pappus attached to the seeds can cause respiratory irritation if inhaled in large quantities.

Essbarkeit

While the young stems and roots are technically edible, the sharp spines make harvesting extremely difficult and risky.

So erkennst du die Pflanze

• Deeply lobed, prickly leaves
• Large, purple, globe shaped flower heads
• Stems covered in sharp spines
• Rosette form during first year
• Tall, branched flowering stalks

Höhe

0,6 bis 1,5m

Breite

0,3 bis 0,9m

Blätter

green, gray-green, deciduous

Blüten

purple, pink, 3 bis 5cm

Früchte

brown, Autumn

Häufige Probleme

• Rust — Fungal infection causing orange pustules on the undersides of leaves.

Standort und Pflege

Vermehrung

seed

Pflanzzeit

spring, autumn

Überwinterung

The first year rosette stays green through winter in mild climates. No special protection is needed.

Im Kübel

Not recommended for containers due to its deep taproot and aggressive nature.

Plant in areas where you want to support pollinators but can tolerate aggressive spreading.

Gute Pflanzpartner

• Schafgarbe — They share similar soil and light requirements in open meadows.

Ähnliche Arten

• Canada thistle — It is a perennial that spreads by rhizomes rather than just seeds.

Botanisches

Familie

Asteraceae

Gattung

Cirsium

Ordnung

Asterales

Klasse

Magnoliopsida

Ursprüngliche Heimat

Europe, Western Asia, and North Africa.

Artenschutz

It is considered an invasive weed in many parts of North America and Australia, often subject to local control mandates.

It thrives in disturbed soils and open pastures where it can quickly colonize bare ground.

Nutzen für Wildtiere

nectar source, seed source for birds

Bestäuber

Bienen, Schmetterlinge, Nachtfalter

Verwendung

pollinator garden, wildlife habitat

Taxonomie abgeglichen mit GBIF.

Häufige Fragen

Is it a perennial?

No, it is a biennial, meaning it completes its life cycle in two years.

How do I get rid of it?

The best method is to cut the taproot below the soil surface before it sets seed.

Woher der Name kommt

Cirsium comes from the Greek word kirsion, a name used for a type of thistle, while vulgare means common.

Gut zu wissen

• The seeds are a favorite food source for goldfinches.
• It is the national flower of Scotland.
• A single plant can produce thousands of seeds that travel long distances on the wind.