How do you rejuvenate rhubarb?
In future years, you can help your rhubarb early in the spring.
Rake the straw mulch away from the plant and put down 2 or 3 inches of composted manure around the plant in a ring.
Do not cover the crown where the leaves will emerge.
Then add the straw to the top..
What’s wrong with my rhubarb plant?
Diseases also rare, but rhubarb can succumb to Verticillium wilt, which yellows leaves early in the season and can wilt whole plants in late attacks. Crown rot occurs in shady, soggy soil.
When should you not eat rhubarb?
The general rule of thumb is to not eat rhubarb from July on. This is for three reasons: 1. Allowing the plant to grow for the rest of the summer will give it the sugars and nutrients needed to get it through the winter and allow it to produce well the next year.
What is killing my rhubarb?
The other leaf spot is called ramularia. It attacks the leaves and edible stalks, so an extreme infestation could spoil your crop. Ramularia is occasionally called “red leaf” because the spots are crimson when they first appear. As the leaf tissue dies, the spots turn tan, but they don’t fall out and leave a hole.