do remember that rhubarb is a good chopd and drop mulch plant..but it is a gross feeder so it could rob nutrients of things if planted too close..i agree with above statement that they can get really really large also..so remember that they will swamp a much smaller more tender plant
Bloom where you are planted.
I would have thought it needed shade in Spain. Does anyone know what to do with it in a hot country? does it die back in the summer mounths and regrow again from the roots. I suppose it needs to be in an irrigated spot. If it died back and regrew from the roots the summer drought would not matter. rose
Early in the season I cut the bottom out of 5gal Pails and paint them dark green. I place them over the small Rhubarb plants. The plant then grows toward the light to get out the top of the pail. ...thus the stems grow extra long. Light is not excluded as with regular forcing of Rhubarb.
We leave them on until after the second cutting. We cut just a few stems from time to time and freeze them until there is a lot or as we need them.