Laurie,
Mother Nature has smiled upon you
So enjoy them, I would say keep feeding the bed as you have been, make notes of temps, rain etc. when they popped, and try and replicate that in future years, they
should pop again!
Which morels are they?The black ones are the ones you are thinking of that pop up after a fire. The yellow ones we find here around cottonwoods on the river bottoms. In Virginia I would find grey, yellow in old
apple orchards and around hickory stands, elms. I do cover morels in the book, primarily how incredibly tough they are to cultivate. I can't express in my reply how many different methods I tried to no avail. Well now I live in Montana, the couple that bought my place probably has them popping up every where!
Before I plug my book I would just keep adding your aged compost, and again stress that you should make notes of your conditions so you can try and watch and replicate next year
Hope this helps some- and with that www.mycelialmayhem.com
Enjoy your morel blessing!
Dave