Dirt for Tulips
We've generally had about 70% - 80% of our bulbs come up, which isn't too bad. Wondering what we can do to improve though.
Dirt is fairly good black dirt, but very sticky/clumpy (almost like clay sometimes). Good idea to add some sand? Other?
Hardwood cedar mulch bad when mixed in? When I was younger we'd screen stuff like this out before planting tulips believing that rotten/rotting wood wasn't good. True or not necessary?
Old bulbs bad? We plant new bulbs every year. The old bulbs get dug up but we just leave them in the dirt as we recover the new bulbs. OK? Should they be taken out?