Tree Collards

[nell]

Does anyone know where to buy tree collard seeds please ? I'm not even sure what tree collards actually are except that they're supposed to be a perennial kale that you can keep on picking year after year - which sounded good ! Are they the same as the Jersey walking stick cabbage ? I do have Dinosaur /palm tree kale but dont think these grow as big as the collards (to two metres apparently)
(I hope this hasn't been covered recently - I'm not very good at keeping up with all the previous postings ! )
  Many thanks - Helen

[nell]