Aargh, Lisa, you have had a tough couple of years! I hope doing this swap is something you consider therapy, and not a tremendous burden. This is the only swap I play in, because you do such a great job with it, but having to deal currently with your mother's passing is a big one. If you need extra time, go ahead and adjust the dates - there isn't a swapper in this group who wouldn't understand.
If there is a plant that can be grown from seed that you would like to plant in your Mom's memory, let me know - if I have the seeds I will send them to you.