Originally I had used graph paper and mapped it out in single rows, then I saw something in a + shape and thought it would be a lot easier with large groupings like you have... My veggie plot is 19' x 19 ft. I already planted sweet peas and green onions last month in about 8 x 4 ft in the south side of the patch before I decided how I was gonna mark it out cuz the Farmers Almanac told me to plant those, but I think I can still get the shape I want. Especially since all of the organic gurus I've been watching on youtube say to mix the plants up to confuse bugs. I'm mostly growing flowers, cuz I'm a flower freak, but I have the green onions direct sowed now, cherry tomatoes and bell peppers in the greenhouse and I'm gonna direct sow some cantaloupe. This is my first time growing veggies, so I'm starting small. Also, gonna mix herbs in between. Oregano, basil, chives etc... So much fun!