Cilantro does not do well in heat, and the quickly changing temperatures you describe don’t help. Spread a 1- to 2-inch-layer of mulch or compost around the cilantro plants to help to keep the roots cool and wet. Another option is to plant more cilantro plants in with the others, leaving 3 to 4 inches of space between each plant. The close together leaves will shade the soil at the base of the plants, helping to keep them cool. We hope this helps!
Hi Michael,
Cilantro does not do well in heat, and the quickly changing temperatures you describe don’t help. Spread a 1- to 2-inch-layer of mulch or compost around the cilantro plants to help to keep the roots cool and wet. Another option is to plant more cilantro plants in with the others, leaving 3 to 4 inches of space between each plant. The close together leaves will shade the soil at the base of the plants, helping to keep them cool. We hope this helps!