Cain Greenhouse is proud to be a family-owned and operated greenhouse and plant nursery, located in Merrill, Wisconsin. We are proud to say we grow every single open-pollinated (over half are heirloom!) plant from seed, by hand, by the owner herself. All items are grown without pesticides, sprays, chemicals, fertilizers, etc.- just sunshine, water, and care. We strive to give each plant love and attention, as if we were going to plant it in our own gardens and give the food to our children. 

We offer fruit and vegetable starts, annual and perennial bedding plants, WI native flowers and grasses, climbing flower arrangements, herb starter plants, and flower and fruit hanging baskets. Our Hsu's soil and mulch area is right in the parking lot, and is available at your convenience. We also have a collection of crafts- including wind chimes, spinners, feeders, bird houses, and much more. 

All of our plants are rated for zone 4 by our seed suppliers, unless noted, so you can feel comfortable growing them in the harsh Wisconsin winters. 

We often have posts and videos shared both on Facebook and Google of how we collect and save our seeds, planting and gardening practices we use, and other helpful suggestions to make your garden techniques more sustainable. 

Check out our produce stand page for what's growing! New additions for next year are in the planning stage now, but we will keep you updated! 

✨What we have planned for 2026 so far...✨

👉Our WI native plants started from seed this spring will be sold as one year old perennials. This means they should flower!