There are basically two ways to grow Moringa oleifera. The spaced tree method where you plant individual trees 10 ft apart and allow to grow several feet tall not to exceed 10 ft for practical purposes. Or you can grow intensively which I think should be the preferred method in this country due to our climate. It practically freezes everywhere so when your crop is manageable in limited space you can take measures to prevent damage from freezing. In this photo below, we planted 4 or 5 seeds per hole which have their own water drip line. Water is pinpointed for each “bouquet” and thus conserved. You can also plant in a small raised bed 4’x8′ with several hundred seeds and harvest monthly.