James has the right idea. I often sprinkle seeds in a 3 ft wide row so seeds are about 3 inches apart then push seeds into the soil with my finger. Lots of plants climb all over each other it turns into a pile of plants about 3 ft tall. I am going to do a 3 ft wide row this year with not stakes and no fence wire.
TSC = Tractor Supply Company sells fence wire in rolls, 10 ft, 25 ft, 50 ft, 100 ft, price is about $1 per foot. I use to have a 25 ft piece of fence wire 4 ft tall. I used about 6 cement rebar stakes to hole the fence up. Be sure to buy the steel fence wire not the aluminum wire. Aluminum gets damaged very easy. Lowe's & Home Depot has fence too.