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Willowherb

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Time to act
Time to act

Do not Time to act in January

Do not Time to act in February

Do Time to act in March

Do Time to act in April

Do Time to act in May

Do Time to act in June

Do Time to act in July

Do Time to act in August

Do Time to act in September

Do Time to act in October

Do Time to act in November

Do not Time to act in December

Willowherb, or fireweed, Chamerion angustifolium, is a pretty plant that looks at home in a wild garden, but will take over any domestic garden, spreading by seed and tough underground roots. Left unchecked, it will invade the space of other plants and restrict their growth.

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Symptoms

Willowherb will take over any domestic garden, spreading by seed and tough underground roots to form dense clumps.

Find it on

all over the garden

Organic

Keep digging the plants out. Willowherb can be forked out fairly easily – especially when the soil is loosened after rain – and will not survive repeated cutting or pulling.

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Chemical

Use a weedkiller such as glyphosate. Spray directly onto the plant and avoid spraying on a windy day and near other desirable plants.