Mulch rhubarb
Once your rhubarb leaves have died down, cut back the old stalks to leave the buds exposed to the winter weather. Rhubarb plants will benefit from a thick mulch of straw or well-rotted compost or manure placed around the crowns of the plants. Don’t place it over the crown itself as this can lead to rotting. As well as helping to suppress weed growth, as the mulch breaks down it will also feed the soil, providing nutrients for these hungry feeders ready for next year’s growing season.