I have a few new Rugosas from last year and I wonder if I can use Osmocote
time release fertilizer on them. I know that Rugosas are a little touchy
about fertilizer and I don't want to hurt them. I am using some bone meal,
epsom salt and will use fish emulsion during the year also. I have put a
good shovel full of compost around each one too. Any info would be helpful.
Sharon in MN