• Fathen seedling weed

Our Personal Guarantee


Fathen will grow up to 2 metres tall but is often found as a small seedling in garden flowerbeds. The leaves are pale green grey.


Fathen is a common weed in gardens, roadsides, agriculture and waste areas. Fathen is toxic to both sheep and pigs due to its high levels of oxalic acid.


In garden beds

To control fathen seedlings in garden beds, spot treat with Weed Weapon Extra Strength, Weed Weapon Rapid Action or Organic Weedfree Rapid.  Weed Weapon Extra Strength is systemic and kills weeds down to the roots within 2-4 days and is an ideal product for use around established trees and shrubs. It is inactive in the soil so planting can be safely carried out soon after treatment. Organic Weedfree Rapid will burn down young weeds within hours and is certified organic by BioGro.

To control larger mature fathen spray the whole plant with Weed Weapon Extra Strength concentrate with Dye & Stick. Or cut the fathen down and immediately treat the cut stumps with Invade Gel.

For best results apply spray in Spring and Autumn when weeds are growing. Control before flowering and seeding to prevent similar problems the following year.

In paths and driveways

For long term control on paths and driveways use Weed Weapon Long Term. This will kill a wide range of weeds and prevent regrowth for up to 12 months.

For best results apply spray in Spring and Autumn when weeds are growing.

Did you know

Similar, related weeds include Mexican tea and Clammy goosfoot.

Latin names: Fathen - Chenopodium album, Mexican tea - Chenopodium ambrosiodes, Clammy goosfoot - Chenopodium pumilio.

Deals with Fathen

View all products