Hippeastrum Reticulatum Leaves

My neighbor has many of this hippeastrum and when i ask for some bulbs, my neighbor gave me 8 bulbs of various size. The most interesting of this hippeastrum is the Leaf.   White strip along the leaf.
The flower itself is pink with some vein. 
Quite challenging to grow this species. Planted for 8 weeks only 2 bulbs geowing.