I’m Steve (permaculture designer/gardener in Bermuda).

On the subject of edibility of the white fluff around the seeds; I would hasten to add that this seems to depend on climate, and that perhaps a heavier rainfall is responsible for the increased volume of sweet fluff in proportion to the seeds. In Costa Rica, the pods themselves are gigantic, and there’s a lot more white fluff for your efforts.

As a general permaculture plant, I agree wholeheartedly that it’s an excellent choice provided you have the space.

Peace,

Steve.