Cycas multipinnata x ?? Unknown hybrid

Item description :One seedling of Cycas multipinnata x unknown in a 1,4 liters pot. The plant for sale is the plant on pictures

Habitat and Description : This hybrid appeared in a batch of Cycas multipinnata seeds and the other parent is unknown. Likely to be a very plumose hybrid. 

Care : Fast growing hybrid, best grown in the shade. Likes draining soils and needs water and fertilizer in summer, especially if it’s hot.

Cold hardiness :  Probably not very hardy, Zone 9b minimum