Transplant if you can water them regularly, at least in the beginning. Also, put some hay, leaves or anything like that over the soil, it helps prevent direct sun to the soil, thus it dryes up slower.
Im from Europe, and i use a thing called agrogel, its a superabsorbant polimer, that binds with water. (1 gram of the crystals holds about 100g of water, it becomes like a jelly and the plant can draw water from it when it needs it). So with agrogel and some cover over the soil i don't even have to water them where i live.