Top Things to Do in Alexandria, Arlington & DC This Weekend (September 6–7, 2025)

Looking for fun events in Alexandria VA this weekend? Whether you love plants, books, dogs, or live music, there’s something for everyone happening in Alexandria, Arlington, and Washington DC this September. From the Fall Plant & Garden Sale at Mount Vernon to the National Book Festival in DC, here are the best activities to check out.

1. Fall Plant & Garden Sale at Mount Vernon

Kick off September with a visit to the Fall Plant & Garden Sale at George Washington’s Mount Vernon Estate. Find seasonal perennials, heirloom flowers, shrubs, and trees – many grown right at Mount Vernon. A perfect way to shop plants in Alexandria VA with no admission fee!

📅 Date: Saturday, September 6, 2025

⏰ Time: 8 a.m. – 2 p.m.

📍 Location: 3200 Mount Vernon Memorial Hwy, Mt Vernon, VA 22121

2. 33rd Annual Rosslyn Jazz Fest – Arlington VA

Love music? Don’t miss the Rosslyn Jazz Festival 2025 – Arlington’s biggest free outdoor festival. Enjoy jazz, funk, and soul performances by Grammy-nominated Southern Avenue, New Breed Brass Band, The Sensational Barnes Brothers, and more. With food trucks and yard games, it’s the ultimate free concert near DC this weekend.

📅 Date: Saturday, September 6, 2025

⏰ Time: 1 p.m. – 7 p.m.

📍 Location: Gateway Park, 1300 Langston Blvd, Arlington, VA

3. 25th Anniversary National Book Festival – Washington DC

Bookworms, this one’s for you! The National Book Festival 2025 celebrates its 25th year with over 90 authors, book signings, live talks, and family-friendly activities. Held at the Walter E. Washington Convention Center, this is one of the biggest literary events in Washington DC.

📅 Date: Saturday, September 6, 2025

⏰ Time: 9 a.m. – 8 p.m. (doors open 8:30 a.m.)

📍 Location: Walter E. Washington Convention Center, Washington, D.C.

4. Doggie Day Swim – Dog-Friendly Event in DC

Calling all dog lovers! DC pools open their doors to pups for an end-of-summer swim day. This dog-friendly event is one of the most searched “things to do with dogs in DC this weekend.”

📅 Date: Saturday, September 6, 2025

⏰ Time: 12 p.m. – 4 p.m.

📍 Locations: Langdon Pool, Ridge Road Pool, Francis Pool, Upshur Pool

5. All the President’s Pups Dog Tour – Mount Vernon

Step back into history with your furry friend at the All the President’s Pups Tour at Mount Vernon. This 1.25-mile guided walk explores George Washington’s love for dogs and the canine history of Mount Vernon.

📅 Date: Saturday, September 6, 2025

⏰ Time: Morning tours (starting at 9:30 a.m.)

📍 Location: 3200 Mount Vernon Memorial Hwy, Mt Vernon, VA 22121

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✅ Final Thoughts

If you’re searching for what to do in Alexandria this weekend, this list covers the best local events in Alexandria, Arlington, and Washington DC for September 6–7, 2025. From plant shopping to live jazz, book festivals, and dog-friendly fun, there’s truly something for everyone.