Tulips, leaves but no buds
I have some tulips that have come up with nice looking leaves but no buds. Is this normal for this time of year or am I going to have my 2nd year with no flowers? Anybody have any idea why they're not blooming? (nutritional issue?.. sun and drainage should be fine where they are). Anything I can do at this stage to encourage them or is it too late for this year?