Field Grown Fir Tree Workshop

Schedule and Location

Sunday, August 5, 2018, 10:00 a.m. to 1:00 p.m.
Thornhill Education Center

Fees and Registration

Nonmembers: Fees include admission to the Arboretum.

$150.00 member
$160.00 nonmember
Silent observer $20 (phone registration only)

Course Description

This workshop features a selection field grown Douglas and Corkbark fir trees. These trees have 2-3 inch trunks and are between 3-4 feet tall. The primary focus on this workshop will be on initial styling, including determining the height and new leader as well as wiring and branch selection.

Dan has been active in the bonsai hobby since 1986. He prefers outdoor bonsai with mostly conifer trees and a few deciduous trees. He has been a frequent guest on the the Mike Nowak radio show and has been featured in sever publications.  Having a BS in horticulture, Dan has vast knowledge of the care and growing of Bonsai.  Dan is a past president of the PSBS and has been active in the group for a long time.   He has exhibited trees in the Prairie State Bonsai Society show at the Morton Arboretum and also in the Mid-America Bonsai show at the Chicago Botanic Garden. He has also taught bonsai classes at Moraine Valley Community College and performed bonsai demonstrations and led bonsai workshops at Morton Arboretum, Cantigny Gardens, Sid’s Greenhouse, Vern Goers Greenhouse, and The Hidden Gardens nursery.

Instructor: Dan Kosta
Notes: Limit 10
Supplies: Price includes materials. Students are asked to bring in what tools they have on hand. Extra tools will be provided by Prairie State.
* material selection is by lottery drawing

Course number


Course Details

ONLINE:  REGISTER NOW, opens new tab
BY PHONE: 630-719-2468 (or to be waitlisted, M-F, 9:00 a.m. to 4:00 p.m.)
IN PERSON: Stop by Visitor Center during open hours.


Weather Cancellation Hotline
Classes run rain or shine unless there is a threat of server weather. If severe weather is forecast please call 630-719-7979 for updates on weather related cancellations.