I am considering replacing our front lawn (in a gated, brick wall courtyard) with gravel and ground cover (likely a creeping perennial) and need some advice. The area is north facing, full shade, and the lawn is 440 sq. ft. with 2 trees (one lime, one unknown). Our 2 Golden Retrievers play out there on occasion and the puppy is quite active. :-o I love love love dymondia margaretae (silver carpet) and really want to plant it but it's apparently not good in full shade. :-( What can I plant instead that is low, tight, drought resistant, dog-friendly and a low-water user (going to take advantage of the LADWP lawn replacement rebate and can possibly get up to $1,600!). Thanks in advance for any advice!