Our main seating for the reception is going to consist of two lines of tables that would be 30 feet each (five 6-foot tables). The plan for the centerpieces is to do jasmine vines and gauze runners, with geometric terrariums, smaller candle holders, and vases interspersed down the length of the table. I'll be using 3 different styles of the terrariums to get variety in the shapes and height. The tallest terrarium is 9 1/4" and the shortest is 6 2/4".
My question is how many terrariums I should buy for each long table? I've read a general rule of thumb that it can be one every five feet. So does 6 terrariums on a 30 foot table seem reasonable?