When the sunflowers reach 2 feet tall, tie them loosely together in twos. Plant the pole beans in a circle around the base of the sunflowers. For example, place carrot or beet seeds and radish seeds in the same row. The radishes will be ready for harvest before the carrots or beets show much growth. Although some trees require support, staked trees grow lankier and develop less sturdy trunks and smaller root systems than trees left unstaked.
Trees develop thick trunks and strong roots in response to the stress of bending in the wind.
If a tree stands on its own, don't stake it.