(May) Is it ok to plant gladioli bulbs now and can one feed other bulbs now?
Yes, it should be a fine time to plant gladioli bulbs. They are summer bulbs and should enjoy the warm soil conditions. As to fertilizing other bulbs, do you mean summer or spring bulbs. Summer bulbs such as canna's, caladiums and elephant ears would benefit from a dose of fertilizer, but the spring bulbs should be on their way out, so no more fertilizer for them.