These are the signs that your succulent may be over or underwatered. Your succulent might also show signs of stress if it is exposed to moisture and humidity. It is designed to retain water, but it can become too dry and won't rehydrate. 1. Use a sharp knife or pair of scissors to cut the leaf. Then sterilize it using alcohol or methylated spirit. To allow the leaf to dry for several days, carefully cut it with a pair or clean scissors. In the case of Aeonium Mardi Gras, if the soil is dry in the first inch of the pottage, you can go ahead and water the plant again. Use certified seeds.