Zilis is an internationally known expert on plants in the genus,
Hosta. He was a pioneer in the process of tissue culture
propagation of hostas at his former nursery (Q&Z Nursery) in
Illinois. Mark received an MS in horticulture from the
University of Illinois and has travelled extensively in Japan in
search of new hostas. For nearly 40 years, he has been involved
in all aspects of hosta culture, propagation and science.
The Hosta Handbook (2001) was his first major effort on
the subject. It is in a small format which makes it easier to
carry around the garden. The book contains detailed information
on several hundred hosta species and cultivars. A nice reference
for the hosta hobbyist.
List of hostas in our database which include information
from this source.