I've been there 3 or 4 times. They are open Monday through Saturday. I can give you the pros and cons of visiting and shopping there. The catalog online is huge but they don't have a lot of them available. When you visit, there is a catalog of "available" plants but a lot of them aren't available either. They print the "current" catalog each May and don't update the catalog during the year. If you want a specific plant call or contact them well in advance. The gardens are huge and take a lot of time to walk around--also consider wearing comfortable shoes since the gardens are on hillsides, etc. Although the garden locations of the various cultivars are noted in the online catalog, they don't have a map which shows where each garden is located. So, looking for certain plants can be challenging. Last time we were there a lot of the plastic houses in which they keep some of the plants weren't open. Also note that plants are kept in houses according to themes, e.g. girl's names. All of this may seem overwhelming and it is for the first time shopper. Also remember, the price is per crown, so the pot with 10 crowns looks wonderful but it may cost $150+ Now for the good points, you get to see hostas that aren't babied in pots or grown under optimal conditions--in other words just like you would see them in a yard. They even grow some out in the sun so you can see what that does to the plants. I often change my mind about purchases when I see other plants there which look better to me in person. I bought about 10 large blue hostas there over the last 8 years and each and every one of them was different than what I thought I wanted before I visited there. I have also bought 20-30 other ones that I liked when I saw them. I try to get there every 2 years so this is the year I will probably get down there--but for me the trip is 1 1/2 hours so it's not too bad. The staff are very friendly and do try to help. Last time there, one guy actually took us through some of the huts and showed us lots of terrific new plants--most weren't for sale yet but were interesting to consider for future purchases. It's a shame that Van isn't around any more since he was usually out in his golf cart--we roamed the day lily area with him one year. They also have a small but good collection of perennials and shrubs for sale near the hostas--last time we jammed a large rhododendron in the back of the car since we couldn't pass it up. We usually allow 4 hours to visit and purchase stuff. One last note, if you see something in the gardens take a good picture of the exact garden it's located in, the plant itself along with the plants around it so you have some chance of identifying it for the staff--they have so many plants it would be impossible for them to know where everything is located. It's a great place to visit and buy plants all of mine from there have thrived--but we think it's good to know some of the stuff I've mentioned before you visit.