| Not all varieties of rhubarb are red, the green varieties may get a little red. There is little to no difference in the taste of red and green varieties. If you want redder sauces and jams, you can add food colouring. If the stalks get too large they get more fibrous, but since they are usually cooked to mush for sauces, jams, pies etc they are still usable. Rhubarb will flower if allowed to mature and the crowns do spread and put up new buds. Since you haven't harvested yours, it is growing well. You can divide the crown into separate plants by digging and cutting them apart, do this in early spring or fall, not now at the height of summer heat. |
Here is a link that might be useful: About Rhubarb