Andalusia is closed for the season and will reopen on March 31, 2025. During winter months, Andalusia can still accommodate small house tours (up to 12 people). Larger group tour bookings for the 2025 season are now open.

Andalusia Garden Symposium

The Andalusia Garden Symposium brings together garden enthusiasts from near and far to hear from some of the most influential and innovative voices in the global gardening community.

This year, the full event will be held on the beautiful grounds of Andalusia Historic House, Gardens & Arboretum 

THurSDAY, May 1, 2025

2025 Speakers

Jo Thompson

Jo Thompson

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Jo Thompson

Jo Thompson

Jo Thompson is an international garden designer known for sustainable landscapes, exquisite planting, and a deep understanding of place. She has been consistently listed as a top designer by House & Garden and Country Life magazines.

Kelly D. Norris

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Kelly D. Norris

Kelly D. Norris is a leading horticulturist exploring the narrative of place through plantings and landscape interventions. His work has appeared in The New York Times, Better Homes and Gardens, Martha Stewart Living, Fine Gardening, and Garden Design. At the 2024 Philadelphia Flower Show, he won a Gold Medal and The Governor’s Trophy.

Asa Gregers-Warg

Åsa Gregers-Warg

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Asa Gregers-Warg

Åsa Gregers-Warg

Åsa Gregers-Warg is Head Gardener at the Beth Chatto Gardens, where she has worked since 2001. Spending almost twenty years working alongside Ms. Chatto herself, she has an invaluable insight into the garden’s philosophy and planting principles, and will be speaking about the Beth Chatto planting motto ” Right plant, Right place” as well as discussing Beth’s iconic Gravel Garden.

Charlotte Harris

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Charlotte Harris

Charlotte Harris is the co-founder of the award-winning Harris Bugg Studio which has won three Gold Medals and a Best in Show at RHS Chelsea Flower Shows. They have worked on a range of projects across the UK and Europe, from residential to public, historic, botanic and commercial spaces. Their residential garden in Dorset, UK was named as one of the World’s Most Beautiful Gardens by Veranda magazine. Charlotte is also a Gardens Illustrated Contributing Editor.

Accommodations

Are you looking to spend the night in Bucks County? Check back soon for a curated list of hotels and inns offering discounts to Garden Symposium guests.

Presented by The Letitia Glenn Biddle Society

Billie Bailkin
Kristin Biddle
Amanda Burch
Alison Carabasi
Jenny Rose Carey
Amy Coes

Jane Corrigan
Kim Garno
John Giacomazzi
Pia Halloran
Wendy Mahoney
Diana Mason

Wendy McDevitt
Elizabeth Proctor
Jeannette Smith
June Marshall Smith
Mary Smith
Kathy Spagnola

Eileen Stoveld
Libby Sullivan Trammell
Nathan Tuno
Rebecca Williams
Anne Wilmerding
Judy Xie
Liz Zelov

Proceeds of the 2025 Symposium go toward funding summer internships in horticulture for aspiring professionals working in the field.  

Thanks to Our 2025 Sponsors

Wendy & Wade McDevitt

June & Hank Smith

Thanks also to our 2025 Patrons:

Kristin & Jamie Biddle | Jenny Rose Carey | Wendy & Wade McDevitt | June & Hank Smith

PHOTO GALLERY

Images from past Garden Symposia
2023 Speakers: Fergus Garrett, Annie Novak, Frances Palmer & Xa Tollemache
2024 Speakers: Troy Scott Smith, Dan Hinkley, Lucy Hunter & Stefani Bittner

STEP INSIDE THE

Historic House

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Enter the Grandeur Of

The Gardens

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See the Beauty of The

Arboretum

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