I have to remove a hedge of pittisporium and a few camellias that have a 2-3" caliber to be installed later in a new location after a construction project is complete. There is little room (they will have to be dug by hand) and they are planted in the sand. I've had problems in the future keeping the soil together in a ball when digging plants in sand up. Any Tips for this?? They will be temporarily planted offsite for about a month and then transplanted near the original site.