what a sh*tty job.. lol..

they are 'nuring the fields right now.. out here in farm country ...

they want the spring rains.. to wash it into the soil ..

and they want to do it.. before we all open our windows.. and hope to die.. lol.. you wont have that problem ...

if i recall.. the stuff is barely 1-1-1 .... but good black gold.. humus/compost ....

i dont really think there is any bad time...

ken

The bagged stuff is not going to hurt your plants but its to late for it to be any good for the bulbs. Most use a liquid feed for those or nothing at all. Can't answer the rhubarb question as I don't grow food plants.

I bet you could dump the whole bag around the rhubarb and it would only just start to feel happy. Rhubarb loves a rich soil.
I would avoid getting it on the crowns of your plants, but it's for the same reasons I wouldn't just dump dirt on the crowns. Putting it around the plants now is the perfect time, I'm sure they'll like it... And the worms too!