About

Welcome to Mary’s Greenhouse, your trusted local source for vibrant plants, expert gardening advice, and a deep-rooted passion for nature. Conveniently located on O'Plaine Road between Route 120 and Washington Street in Gurnee, IL, we’ve been a favorite among gardeners for years—offering a warm, welcoming space where plant lovers of all levels can find inspiration and support. We grow and care for all our plants onsite in six unique greenhouses, ensuring they’re healthy, thriving, and ready to brighten your home or garden. Our diverse selection includes seasonal flowers, annuals, perennials, hanging baskets, and custom planters, all thoughtfully curated to match the seasons and your personal style. Whether you're refreshing your backyard, building a container garden, or searching for the perfect indoor plant, we’ve got something special for you. And if you have questions, just ask Mary—her extensive plant knowledge and friendly advice make her the go-to expert for everything from soil tips to seasonal arrangements. We also carry a full range of garden supplies, including tools, fertilizers, decorative pots, and accessories—making Mary’s Greenhouse your one-stop shop for all things gardening.

Year Established

2007

Products

• Seasonal Flowers
• Vegetable Plants
• Planters
• Baskets
• Garden Supplies
• Poinsettias
• Weaths
• Berries & Greens
• Floral Arrangements
• Holiday Decor

Services

• Gardening Advice
• Plant Advice

Specialties

Business Hours

The Greenhouse will be closed from 11/1 to 11/27 while we get ready for Christmas. We'll reopen on 11/28.

Holiday Hours

• Friday, December 5, 2025 : 09:00 am - 8:00 pm
• Sunday, December 7, 2025 : 09:00 am - 5:00 pm
• Sunday, December 14, 2025 : 09:00 am - 5:00 pm
• Sunday, December 21, 2025 : 09:00 am - 5:00 pm
• Thursday, December 25, 2025 : Closed

Associations

Brands

Pickup and Delivery