Pullulate

 
Pullulate is a great sounding word and has so many meanings that it deserves to be far better known and much more regualrly used.

It means to be teeming, be abuzz; pour; move in large numbers; shoot; produce buds, branches, or germinate; become abundant; increase rapidly; and breed freely and abundantly.

I'm looking forward to the Spring when the garden will pullulate with humming bees.