Rhubarb crowns to plant (Loughborough LE11)

Rhubarb just starting to grow. Good time to plant. They like deep, fertile soil in sunny spot. These are only small so probably won't do much this year and they say not to harvest in the first year anyway to let the plant get established and then when you do harvest to always leave about a third of the stems. Mine really took off in its third year and grew to about 6 foot wide with leaves about 2 foot wide so look for a spot in your garden with plenty of space!! They disappear in winter and all I do is add a bit of mulch around the plant (but not over the crown or it could rot). They start to grow again about late February. Easy plant to look after.