By Hildabilby
Worcestershire,
United Kingdom 
what to do with pyrethrum{Tanacetum} now flowers have finished and starting to fall over
29 Dec, 2011
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« what to do now flowers have finished Pyrethrum {Tanacetum}
Just cut it back and it will grow again in the spring as it is a perennial. Make sure you wear gloves when you do so as the natural insecticide in the seed heads can be a skin irritant.
29 Dec, 2011