2026 NCOS International Orchid Show & Sale

Friday, September 18 – Sunday, September 20 SHOW DATES AND TIMES Friday, September 18 – 12:00 PM-6:00 PM Saturday, September 19 – 10:00 AM- 6:00 PM Sunday, September 20 – 10:00 AM- 3:00 PM Montgomery County Agricultural Center (Fairgrounds) 16 Chestnut Street, Gaithersburg, Maryland Building 6, Hall 3 We are thrilled to share that the National Capital Orchid Society International Show and Sale has a new home for 2026 at the Montgomery County Fairgrounds in Gaithersburg, Maryland. From September 18–20, 2026, orchid lovers from across the Mid-Atlantic and around the United States are invited to experience one of the largest orchid shows on the East Coast! The show promises to be bigger and better than ever, with 5,000 square feet of exhibits and vendors with an unparalleled selection of orchids for every level of grower.​​ This year’s international vendor lineup showcases an extraordinary range of orchids and tropical plants, with committed vendors traveling from across the United States and around the globe. For more information CLICK HERE