Hi Ronnie, As with most perennials, it is a good idea to cut back cosmos. Cutting this season’s foliage off encourages the plant to go dormant, which is a time in its life cycle when it stores energy (carbohydrates) to be used for next year’s growth. Reply
Hi Ronnie,
As with most perennials, it is a good idea to cut back cosmos. Cutting this season’s foliage off encourages the plant to go dormant, which is a time in its life cycle when it stores energy (carbohydrates) to be used for next year’s growth.