The Auxiliary is a group of Arboretum enthusiasts who volunteer time and talent to support the work of the Arboretum.  Volunteer and educational opportunities exist on many levels for our members.  The Auxiliary presents fundraising events which include:  Spring Plant Sale, Summer Garden Tours, Fall Harvest Sale, Quilt Raffle, and Holiday Sale.

Auxiliary memberships are available to existing Arboretum volunteers only. Visit for step-by-step instructions on becoming an Arboretum volunteer.

Arb Glass Pumpkin Patch 2021

Glass Pumpkins

Snyder Building and Morgan Terrace

September 9  |  Noon - 4:00 p.m.

September 10 and 11  |  10:00 a.m. - 5:00 p.m.
September 12  |  10:00 a.m. - 4:00 p.m.

The Arboretum Auxiliary presents 10 award-winning, professional glass artists from the Midwest and California to display and sell their glass pumpkins, demonstrate glass blowing and offer small class instruction.

Visitors will find 2,000 gorgeous and colorful glass pumpkins in all shapes, sizes and colors for sale in a unique fall setting display. Your purchase supports the artisans and the Arboretum. Free glass-blowing demonstrations daily. The event is included with gatehouse admission.

Quilt Raffle

Each year, the Auxiliary creates a show-stopping, handmade quilt for the popular Quilt Raffle Fundraiser. The 2021 quilt, "Sights and Sounds of the Arboretum", will be on display in the Red Barn on May 8 and 9 during the Auxiliary Plant Sale. Raffle tickets will be available for purchase at the sale.

Starting May 10, ticket sales will continue in the Oswald Visitor Center. The raffle drawing will be held at 2:00 p.m. in the Snyder Auditorium on the Saturday of the Fall Harvest Sale in September. For more details, call 612-625-9865.

Fall Harvest Sale

Join members in creating seasonal floral arrangements, greeting cards, botanical products, knitted wearable accessories, gifts for the home and both functional and whimsical wood-crafted items. Volunteers help set-up, assist shoppers with their purchases and assist with take down at the end of sale. All proceeds go to support the work of the Arboretum.

September 24 - 25  |  9:00 a.m. - 4:00 p.m.
September 26  |  11:00 a.m. - 3:00 p.m.

Snyder Auditorium

Auxiliary Quilt Raffle drawing also takes place at 2:00 p.m.

Holiday Sale

Be creative in using natural and faux materials to create wreaths and arrangements, craft
items, knit and felted wearable art, ornaments, gift cards, scented potpourri and soaps, wood-crafted game boards. All for the home and gift giving. Volunteers help set up, assist shoppers with their purchases and assist with take down at the end of sale. All proceeds go to support the work of the Arboretum.

December 3-4 - 9:00 a.m. - 4:00 p.m.
December 5 - 11:00 a.m. - 3:00 p.m.

Snyder Auditorium

Auxiliary Plant Sale

Thank you for supporting the work of the Arboretum at the 2021 plant sale. We look forward to seeing you again in 2022. 

Private Garden Tours 2021


The Auxiliary Private Garden Tours feature beautiful gardens, each with its own history and distinct beauty. Guests travel in air-conditioned motor coaches and tours are followed by a brunch, luncheon or hors d'oeuvres, depending on the day and time of the tour. To ensure our guests have a memorable experience, volunteers help as bus escorts and garden hosts. All proceeds go to support the work of the Arboretum.

** All 2021 tours are sold out **

Sunday, July 18  |   9:00 a.m.    9:45 a.m.    10:30 a.m.
Brunch on Morgan Terrace

Sunday, July 18  |  3:00 p.m.
Sunset tour with hors d'oeuvres

Monday, July 19  |   9:00 a.m.    9:45 a.m.    10:30 a.m.
Lunch on Morgan Terrace

Tuesday, July 20  |   9:00 a.m.    9:45 a.m.    10:30 a.m. 
Lunch on Morgan Terrace


Sunday brunch sunset tours: $74.00.
Weekday tours: $64.00
Prices include a $5.00 surcharge to cover Covid restrictions.

Upcoming Events

Auxiliary Quarterly and Annual Meeting
Annual Meeting / Luncheon:
Wednesday, August 4, 2021, 10:00 a.m. Snyder Auditorium
November Quarterly Meeting / Luncheon:
Wednesday, November 3, 2021, 10:00 a.m. Snyder Auditorium

Knit & Stitch - 2021
Check back for additional dates

Summer Garden Tours - 2021
July 18, 19, 20

Quilt Raffle Fundraiser - 2021
On display May 8.
Drawing is September 25 at 2:00 p.m. in the Snyder Auditorium

Glass Pumpkin Patch 2021
September 9

September 10 and 11
September 12

Fall Harvest Sale - 2021
September 24, 25, 26 

Holiday Sale - 2021
December 3, 4, 5