The most important growing areas lie in central and northern [[Europe]] and [[North America]]. Kale grows more rarely in tropical areas as it prefers cooler climates, and here they often come in exotic colours. Kale is the most robust cabbage type – indeed the [[Hardiness (plants)|hardiness]] of kale is unmatched by any other vegetable. Kale will also tolerate nearly all soils provided that drainage is satisfactory. Another advantage is that kale rarely suffers from [[Pest (animal)|pest]]s and diseases of other members of the cabbage family – [[Dove|pigeons]], [[club root]], and [[cabbage root fly]] (''[[Delia radicum]]''). Places where kale grows are called kalefields. | The most important growing areas lie in central and northern [[Europe]] and [[North America]]. Kale grows more rarely in tropical areas as it prefers cooler climates, and here they often come in exotic colours. Kale is the most robust cabbage type – indeed the [[Hardiness (plants)|hardiness]] of kale is unmatched by any other vegetable. Kale will also tolerate nearly all soils provided that drainage is satisfactory. Another advantage is that kale rarely suffers from [[Pest (animal)|pest]]s and diseases of other members of the cabbage family – [[Dove|pigeons]], [[club root]], and [[cabbage root fly]] (''[[Delia radicum]]''). Places where kale grows are called kalefields. |