I'll explain how my greenhouse is set up, and maybe you can copy my idea. My greenhouse is attached to the house.

Natural Oil
Using Oils as Insecticides

You get to my greenhouse through the utility room. Inside the utility room there is a cabinet. This cabinet has a 5/2 foot base.

This cabinet makes the perfect potting station. On the shelves of the cabinet is where I store all my potting supplies; pots, soil, spades, etc…I have an annex before you go into my greenhouse. The annex is situated in between the utility room and the main growing area of my greenhouse.

I have a cabinet inside the annex. Inside this cabinet I keep some more important plant supplies. I keep items such as fungicides, insecticides, labels, and fertilizers inside this cabinet. By having my greenhouse set up this way, I didn't have to give up any growing space for a potting station.

If the above isn't a possibility for you, take heart, you still have other options available. For example, some greenhouse operators use spare space in their garage for a potting station and storage for their greenhouse materials. The only downside to this is you have to live in a warm climate or have a heated garage.

If neither of those applies to you, this probably isn't a good idea for you. The problem is you have to do the majority of your potting in the winter months. Your plants won't survive in extreme cold temperatures.

If your garage isn't an option, some greenhouse operators use a portion of their basement for a potting station. Just be sure if you have a carpeted basement you put plastic down around your work area. Potting soil can make quite a mess.

Wherever you decide to have your potting station, it's very important that the surface of your potting station be extremely durable. One very good surface material that you can use is Transite.

You can also construct your potting station bench out of wood. Your potting bench surface can be made up of ¾", 1", or even 2" thick wood. A ¾" wooden potting station top can handle a lot of abuse and can take a bushel or two of dirt at one time.

About Electricity

Electrical outlets inside your greenhouse are a necessity that can be overlooked. You're going to want to make sure you plan for plenty of electrical outlets to be installed inside your greenhouse. At some point, you're going to probably need some extra lighting sources. You're going to need to have a place to plug them in at.

You also may need to have soil cables inside your greenhouse. You may even need to place a heating source inside your greenhouse in case the temperatures drop dangerously low. While it is true, you could run an extension cable into your greenhouse. However, this can be very dangerous to do. It's much safer and more convenient to have the electrical outlets inside your greenhouse.