This year I made sturdy and firm trellises for climbing and french beans. Some years ago, the whole structure similar to this one, fell on the side under the weight of plants. I dug the side poles about 40 cm into the ground. I hope they'll be able to hold the rest of the structure on the place.
I have just sown the French Beans 'Blauhilde' here. It is a variety with long, purple pods. They stay tender and stringless. This is the German heirloom variety known to be resistant to the mosaic virus, too.