The trick with growing cilantro is to fool the plant into thinking it’s perpetual spring (or fall). Give it regular, steady water, and mulch the soil to keep the surface cool. If you’re growing cilantro in high summer, plant ‘Slow-Bolt’ cilantro in your coolest microclimate, in the shade of taller plants, or in full shade where summers are hot. Growing in containers allows you to move the plants into full shade easily. ... Lots more info on page.
Natural Weed Control...Cornmeal. Sprinkle on garden and it will keep weed seeds from germinating and growing into plants. It will keep any seeds from germinating so don't use in vegetable garden until plants are established.