Sowing calendar for the low desert

Dates are for elevations under 2,000 feet. Add two to three weeks for Tucson and the foothills.

MonthSowHow
SeptemberPenstemon, desert marigold, globe mallowSow on the surface, keep damp for ten days, then stop fussing.
OctoberBrittlebush, lupine, owl clover, poppiesBest month of the year. Rake seed into gravel before the first winter rain.
NovemberMilkweed (after cold stratifying), chuparosa cuttingsThirty days in the fridge in damp sand works for milkweed.
JanuaryPalo verde and mesquite (scarified)Nick the seed coat with nail clippers and soak overnight.
MarchFairy duster, desert lavenderBottom heat helps. Move to deep pots as soon as the first true leaves show.
JuneArizona poppy, devil's claw, summer grassesSow dry and wait for the monsoon. They know when.