Horticulture Q and A from the Mojave Desert
Oh my! I wonder when the last time was it rained for 10 minutes every other day, long-term, anywhere in the southwest where desert marigold grows wild. Or even every other week? I hope nobody advised them this...they should be out of business.
Change your emitter to 1/2 gph. And make sure you have super good drainage. I have a wild desert marigold with no emitter and it is doing well. I have another I planted on 1.2 gph emitter but it is on a slope with excellent drainage and it is also doing well, maybe too well.