How long do you have to wait after adding gypsum to clayey soil before planting?
08 November 2011 10:39 AM
Gypsum is not a product that works instantly. It can take several months before you see any results. It does improve the structure of your soils by breaking up the clay particles causing the soil to become more friable. You can still plant into the soil where you have applied the gypsum, but if you have heavy clay soils, you would want to give it time to work otherwise it is of no benefit to the plants you want to grow in that area.