how far apart to put centerpieces on long tables

Also, they are going to be 9" vases with flowers in water.

BUMP

That's how our reception was set up! Our tables were 8 feet long and I believe we had 3 tables per row, and put a table at the top of the middle row, (So it was like I T I ) where hubby and I sat, with our family in front of us.

I bought long burlap table runners that went down the entire length of each row of tables, and then we had potted succulents in a variety of shapes and sizes... I think we had plants every 3 feet or so.

I'm leaving that to our florist. She has two birdcages per table and 3 vessels per table filled with flowers. I was panicking about it, then I realized I didn't have to worry about. I did find some help by looking at google images at tables with centerpieces and pinterest.