Be prepared to work for minimum wage.......and below! You can make it up like most nursery people do by working 100 hour weeks.
Do you have a pesticide license? You will need one.
Be prepared for lots of red tape and I don't mean the kind used to mark trees.
I would love to get minimum wages for my nursery work. It does not even come close to that. Nor the vineyard, which is probably less than a dollar an hour.
Pesticide application licensing is highly variable by state. In CA I needed a Schedule Q for spraying as a landscaper and buying herbicides and pesticides was difficult. In OR, there is no license requirement for owner/applicators or landscapers that are not in the pesticide application biz, and getting the sprays is easy. You need a license to have a nursery in OR though. Anything with sales over $400 a year I think it is. Another tax in my view. Though there is no sales tax in OR. Other than that there is no red tape here. Actually I have had great help from OSU (university) and even the USDA, as well as the ODF (OR dept. of forestry).
My biggest problems here with the nursery biz is wildlife and the sheep. Deer are a huge problem, and I had to erect 8 foot fences around the nursery, berry vines and vineyard areas. They even eat tomatoes, and potatoes, which are supposed to be poisonous. If the sheep get out (and they do now and then) they go right for the roses and berries and bamboos. Birds are a problem in the vineyards, and with the blueberries. Voles are a constant problem withthe bamboos; they eat the shoots and rhizomes. Frost is also an issue, as is snow, and heat waves and wind (or hurricanes of late), and bugs, and nematodes, and mildew, and weeds, and a lot of other stuff. You are at the mercy of the weather and nature. And you do not gets days off. No. Have to water, prune, spray, propagate, or meet someone to sell plants to, or deliver plants to someone. Lots of people call and make an appointment and then never show up, or come by and then want to chisel you down in price.
And in the end? You have to compete with Home Depot and Lowes on prices. To get around that limitation, I have found that you have to grow what they do not sell. Or what others locally do not sell on Craigslist. I have found that once I advertize on Craigslist, there are 5 other people posting the same ad the next week. They come out of the woodwork, thinking that there is a hot market. You will also have to decide if you want to go retail or wholesale. They have completely different business models.
As they said on Firesign Theater, "
Its a jungle out there Tarzan"