I highly recommend growing lemongrass in our Arizona weather. They grow fast and makes for nice border. The leaves can be made into refreshing tea and the stem can be used in all kinds of fun cooking recipes.
Photo here shows when I obtained lemongrass from a fellow VPA member last October and planted in a row as front yard border, compared to a photo I have taken this morning.
They grow super fast during our summer months, just like the moringa. So when your garden is struggling in the summer, at least the lemongrass and moringa will continue to thrive and provide you with edible and lush growth to enjoy.
The row of short leaves on the right side of the lemongrass stem are Tall Bearded Iris that I have purchased from the Sun Country Iris Society.