Walltham  was launched  in 1950  America and it has been a favourite ever since  by gardeners who have grown it.
 
Really good, very tasty and easy to grow.
 
Developed to withstand the increasing cold temperatures of autumn  up to a hard freeze.
 
This green Calabreze produces high yields on a compact plant over a long autumn cropping.
 
After the head is harvested it produces  tasty side shoots  up to the first hard frost.