If you’re looking for the best gardening events in the Mid-Atlantic, you don’t have to travel far to find inspiration. Some of the country’s best plant sales, garden festivals, and horticulture events happen right here each season. 

With its rich horticultural history, diverse growing conditions, and a strong network of public gardens, nonprofits, and passionate plant people, the Mid-Atlantic has become a hub for standout garden experiences. As an organization rooted in this region and connected to many of the growers, designers, and educators behind these events, we’ve got a front-row seat to what makes them truly special.

From can’t-miss local plant sales to nationally recognized flower shows, here’s your guide to the best gardening events near you, plus a few worth traveling for! 

Best Plant Sales in Pennsylvania,
New Jersey & Delaware 

These are the plant sales Mid-Atlantic gardeners plan their spring calendars around. 

University of Delaware Botanic Gardens Spring Plant Sale

When: March-April 
Where: Newark, DE 
What to expect: A curated mix of annuals, perennials, and woody plants, including unusual and trialed varieties suited to Mid-Atlantic conditions. 
Good to know: Staff and volunteers are on hand to help with plant selection and care questions. 
Best for: Gardeners looking to try something new or expand their plant palette

Penn State Extension Master Gardener Plant Sales 

When: April–May  (varies by county) 
Where: Locations across Pennsylvania 
What to expect: A wide selection of regionally adapted plants, including native plants, vegetables, herbs, and pollinator-friendly favorites—plus expert advice from Master Gardeners. 
Good to know: Many sales feature pre-orders or early access since popular plants sell out quickly. 
Best for: Beginner to intermediate gardeners looking for reliable, climate-appropriate plants. 

Tyler Arboretum Plant Sale 

When: May (members-only preview + public sale) 
Where: Media, PA 
What to expect: One of the region’s best sources for native trees, shrubs, and perennials, with a strong emphasis on ecological gardening and pollinator support. 
Good to know: Members get early access (worth it if you’re after specific or hard-to-find plants). 
Best for: Native plant enthusiasts and habitat gardeners 

Garden Festivals & Special Events in the Mid-Atlantic

These standout events go beyond plant shopping, offering immersive experiences, beautiful settings, and plenty of inspiration. From iconic flower shows to behind-the-scenes garden tours, they are perfect for a day trip or a weekend built around gardens.

PHS Philadelphia Flower Show 

When: March 
Where: Philadelphia, PA 
What to expect: Immersive floral and garden displays, world-class design, shopping, and hands-on experiences, all under one roof. Hosted by the Pennsylvania Horticultural Society. 
Good to know: Weekdays, evenings, and early entry times for PHS Members are typically less crowded. 
Best for: Gardeners of all levels looking for inspiration and a seasonal reset

Ladew Garden Festival at Ladew Topiary Gardens 

When: May  
Where: Monkton, MD 
What to expect: A full day of garden tours, lectures, and shopping set within one of the most iconic topiary gardens in the country. 
Good to know: Comfortable walking shoes are a must; the grounds are extensive. 
Best for: Garden lovers looking for both inspiration and a beautiful day trip 

Trade Secrets Garden Tour and Plant Sale 

When: May  
Where: Sharon, CT 
What to expect: A highly curated experience combining private garden tours with an upscale plant sale featuring rare, collector-worthy plants. 
Good to know: This is a popular event, so book tickets and lodging early if you’re traveling. 
Best for: Plant collectors and garden design enthusiasts

Garden Conservancy Open Days 

When: May–October (select dates) 
Where: Locations across PA, NJ, and nationwide 
What to expect: Self-guided tours of private gardens not typically open to the public, offering real-world design inspiration and planting ideas. 
Good to know: Tickets are often per garden and can sell out in advance—plan your route ahead of time. 
Best for: Design inspiration and seeing mature gardens 

Top Gardening Conferences & Symposiums in the Mid-Atlantic

Looking to go deeper? These conferences and symposiums offer expert-led education, fresh ideas, and a chance to connect with fellow plant people. Whether you're refining your design skills or expanding your plant knowledge, these events deliver insights you can bring straight back to your garden.

Woody Plant Conference 

When: July  
Where: Swarthmore, PA 
What to expect: Expert-led lectures focused on trees and shrubs, with insights into plant selection, landscape structure, and long-term garden planning. 
Good to know: Ideal for professionals and serious gardeners—content is more advanced. 
Best for: Landscape designers and experienced gardeners 

Perennial Plant Conference 

When: October  
Where: Swarthmore, PA 
What to expect: A deep dive into perennials, with sessions on plant combinations, seasonality, and garden design. 
Good to know: Fall timing makes this a great place to plan next year’s garden. 
Best for: Plant lovers and design-focused gardeners 

Worth the Trip: Bucket-List Garden Events 

Not all garden inspiration happens close to home. These PHS-approved events are worth venturing beyond the Mid-Atlantic for because they offer world-class design, cultural experiences, and ideas you will not find anywhere else. Whether you're chasing peak bloom, scouting global trends, or looking to immerse yourself in something extraordinary, each of these destinations brings a fresh perspective on what a garden can be. 

Northwest Flower & Garden Show 

When: February  
Where: Seattle, WA 
What to expect: Large-scale indoor display gardens, a vibrant plant marketplace, and educational sessions focused on sustainable gardening. 
Good to know: A great winter escape for gardeners craving inspiration. 
Best for: Beating the winter gardening slump. 

Tulip Time Festival 

When: May  
Where: Holland, MI 
What to expect: Millions of tulips in bloom across parks, gardens, and city streets, along with parades, Dutch cultural experiences, and garden tours. 
Good to know: Peak bloom varies each year slightly depending on weather, so plan for flexibility. 
Best for: Spring travel and peak bloom inspiration 

RHS Chelsea Flower Show 

When: May  
Where: London, UK 
What to expect: Europe’s most influential flower show, featuring cutting-edge garden design, spectacular floral displays, and trend-setting ideas. 
Good to know: Tickets sell out quickly; book well in advance. 
Best for: Garden design inspiration and trend spotting 

Singapore Garden Festival 

When: July or August (Typically biennial) 
Where: Singapore 
What to expect: Award-winning international designers, breathtaking floral installations, and a fusion of tropical horticulture with cutting-edge design. Expect bold ideas, meticulous craftsmanship, and plants you rarely see in temperate climates. 
Good to know: Held indoors, making it a comfortable experience despite Singapore’s heat and humidity. 
Best for: Global garden trends, floral artistry, and once-in-a-lifetime inspiration 

Plan Your Season 

From early spring symposiums to peak-season plant sales and summer garden tours, there’s always something happening close to home in the Mid-Atlantic. 

Start with one or two events this season, and you might come home with more than just plants. You’ll come home with ideas, confidence, and a deeper connection to your garden.