Canada thistle.

De un vistazo

Nivel de cuidados

Fácil

Tipo de planta

Perennial herb

Luz

Full sun

Luz en interior

Sol directo

Riego

Cada 7 a 14 días

Tamaño adulto

1 to 5 feet

Ritmo de crecimiento

Rápido

Rusticidad

USDA 3 a 9

Floración

Late spring to early autumn

Cuidados

This plant thrives in full sun and tolerates a wide variety of soil conditions. Keep an eye out for rapid spread, as it can quickly overtake other plants in your garden. Regular removal of the entire root system is necessary to control its growth.

Riego

Water deeply when the top inch of soil feels dry.

Abonado

Generally does not require supplemental fertilizer.

Poda

Cut back stems before they set seed to prevent spread.

Trasplante

Repot only if you are keeping it in a container to manage its spread.

Suelo

Well drained, fertile soil

pH del suelo

6.0 to 7.5

Temperatura

-30 a 35°C

Humedad

30 a 80%

Seguridad

Personas

The plant is not considered toxic, but the sharp spines can cause significant mechanical injury to skin.

Niños

The sharp, spiny foliage poses a significant risk of puncture wounds to children handling the plant.

Alérgenos por contacto

The sharp spines and stiff hairs on the leaves and stems can cause skin irritation or dermatitis upon contact.

Alérgenos en el aire

The windborne seeds have fine, feathery pappi that may cause respiratory irritation if inhaled in large quantities.

Comestibilidad

While young leaves are sometimes consumed after careful preparation, the plant is generally considered unpalatable and potentially irritating.

Cómo identificarla

• Spiny, lobed, lance shaped leaves
• Small, fragrant, purple flower heads
• Extensive creeping underground root system
• Stems are smooth and lack spines

Altura

0,3 a 1,5m

Anchura

0,3 a 0,6m

Hojas

green, deciduous

Flores

purple, pink, white, 1 a 2cm

Frutos

brown, late summer

Problemas frecuentes

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

Cómo cultivarla

Propagación

seed, division, root cuttings

Cuándo plantar

spring, autumn

Because this plant is so aggressive, it is best to avoid planting it near desirable garden species that it might crowd out.

Buenas compañeras

• Yarrow — Both species thrive in similar open, sunny conditions.

Especies parecidas

• Bull thistle — It is a biennial species with much larger, more prominent spines.

Ciencia

Familia

Asteraceae

Género

Cirsium

Orden

Asterales

Clase

Magnoliopsida

Distribución natural

Europe and northern Asia.

Conservación

It is widely considered an invasive weed and is often subject to mandatory control measures in many regions.

It thrives in disturbed soils and open fields, using its deep root system to outcompete other vegetation.

Valor para la fauna

nectar source, larval host plant

Polinizadores

abejas, mariposas, polillas

Usos

pollinator habitat, wildlife forage

Taxonomía cotejada con GBIF.

Lo que más preguntan

How do I get rid of it?

Consistent, repeated removal of the entire root system is necessary to exhaust the plant's energy reserves.

Is it a good plant for a garden?

It is generally not recommended for home gardens due to its aggressive, invasive nature.

De dónde viene el nombre

The genus name Cirsium comes from the Greek word for a thistle, while the species name arvense means of the field.

Bueno saberlo

• It is one of the most persistent and difficult weeds to eradicate from agricultural land.
• The root system can extend several meters deep into the soil.
• It produces thousands of seeds that are easily carried by the wind.
• Despite its reputation, it is a vital nectar source for many native pollinators.