Sadly I mistimed this bed. I usually plant the corn and the squash at the same time. This gives the corn time to get tall enough to be above the squash. But I was doing four blocks of corn each 2 1/2 weeks apart (May 1st, May 17th, June 4th, June 21st). The problem with this bed was it was the later bed and I planted the squash on the June 4th planting time with the first set of corn in the bed. The corn didn't come up. It finally came up with the last planting date of June 21st after several tries. This gave the Waltham way too much time and a lot of the corn was swamped by the squash. On the other end I planted the Early Butternut at the same time as the Waltham. I figured it was not as aggressive so the corn would have a chance. That worked out better. Some stalks did get swamped, but not most of the bed. Right now that set of corn has most of the silks just starting to dry out. So hopefully they pollinated well.
The saddest part about that bed is the Tetsukabuko squash. It set one squash really early and is maybe 6" in diameter. Then it never set another one again. It had lots of female flowers, but they never set squashes. And it isn't resistant to wilt. The plant is dying from it now. So I won't ever grow that one again. The butternuts all seem resistant to wilt and immune to the borers, so butternuts will be my only squash next year. I'm only complaining a little about that. I do love butternuts, but sometimes variety is nice.
This year I gave the third sister - beans - its own bed. I've found that bush beans get mowed down by the squash. Pole beans overwhelm the corn. So I've quit growing a three sisters bed. I keep thinking though that if I plant pole beans really late it might work. I might try one bed that way. I don't know if we would have enough time to get the beans to crop, but it would be fun to try. I always love to experiment.
One thing I didn't like about giving the beans their own bed is that I had to plant bush beans so the beans wouldn't get shaded by themselves. I don't like bush beans nearly as much. They are hard to harvest and I lose some of the beans to mildew as the pods sit in the damp earth. The pole beans are easy to see to harvest and they don't mildew nearly as easily. Next year I'd like to see if I can grow pole beans in the whole bed. I would also like to see if I can find a rotation with the bush Tiger Eye beans. They are such an early bean that I could harvest by pulling the whole plant out. And they could be in the rotation with the spring and fall crops. I could grow the first one early in the summer and they would be out by August. And I could grow the second after the spring crops get out at the end of June. I'd have to experiment to see if I could grow them near the fence or they would always need to be in the better sun by the path. But it would be good to grow beans in a bed before my heavy feeders the brassicas. I'll have to think about what goes where this winter.