In this talk, we draw a connection between vanishing Hessian and wildness: a form is wild when its smoothable rank is strictly larger than its border rank. This discrepancy is caused by the difference between the limit of spans of zero-dimensional schemes and the span of their flat limit. Inspired by recent work on border apolarity of Buczyńska and Buczyński, we study the border varieties of sums of powers of two infinite series of wild forms (with a combinatorial flavor) in the corresponding multigraded Hilbert scheme. This is joint work with H. Huang and M. Michałek.