Snowbank! Enhance your garden with this beautiful set of 4 live starter plants of the blackberry plant from the Snowbank variety. These plants are perfect for outdoor gardening and are packed with features such as draught resistant, organic, cold and heat resistant, fast-growing, and perennial. Each plant is 2-4” similar to the last pic. The growth stage is at the seedling phase, and it is from the Profig brand. This set is ideal for those who love to grow vines, fruits and fruit trees, and is a perfect addition to your collection. Good for zones 5-9 and self pollinating. Roots wrapped damp. The white blackberry is an unusual white variety of blackberry developed by plant breeder Luther Burbank, also known as the iceberg white blackberry or snowbank berry, probably originating as a pun on the name "Burbank". He originally found a wild pale coloured blackberry in New Jersey, named 'Crystal White'.