The Simple Green Kit is a great choice for a biodegradable detergent. You can use the driveway and concrete cleaner from the kit for your paver driveway and patio. You can use the house and siding cleaner for mold and stains for your gutters and siding.
These detergents are biodegradable and safe around plants, pets, ect. However, I do recommend spraying down plants with water before spraying detergent near them. Wetting any landscaping before using avoids leaf spotting/bleaching.