@growingplantzz: Most gardeners use one layer of mulch and wonder why their plants still struggle in summer heat. This double barrier method drops root temperature by 8-10 degrees and keeps soil moist twice as long. ✅ Cardboard blocks moisture from evaporating ✅ Straw blocks heat from penetrating ✅ Works even on 100 degree days ✅ Costs almost nothing 👇 Save this before the next heatwave hits! #GardenTips #MulchingTips #BackyardGarden #OrganicGardening #fyppppppppppppppppppppppp best way to mulch in summer heat how to keep garden soil cool in summer