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. 

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. 

New additions this year... We are expanding our garden art selection! We will have a much larger collection of crafts-- including wind chimes, spinners, feeders, bird houses, and much more. We will offer bags of soil and mulch from the local Hsu's Growing Supply! These will be available to purchase both during our business hours and as self-serve. We are also vastly expanding our WI native flower selection. Be sure to check out our flower page to see what we will have to offer!

*Latest Updates*

3/28: We use Hsu's Professional Potting soil for all of our planting, and we HIGHLY recommend it to anyone needing soil.

This season, we will have Professional Potting soil available for sale, as well as a variety of mulches. These will all be available as self-serve, so they can be purchased at your convenience.

3/10: Planting season has started! Warm busy days to come. 😎

3/2: 🥳We will be opening April 26th at 9am!! 

Hours: Thurs, Fri 9a-6p; Sat, Sun: 9a-5p

2/17: Planting starts in less than 3 weeks! Check out our new Flowers & Grasses selection for this year here!

1/18: Cain Greenhouse is officially listed on the WI DNR website as a nursery carrying native and non-native plants. A small step towards our growth! Check it out here !!

1/13: Stratification for our perennial native seeds is under way.