PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.
I'm in Z4a and am planting bulbs for the first time this year. Most of them I've planted in the ground, but I'd like to put some tulip bulbs in my windows boxes to enjoy outside my window this coming Spring. My question is this: will they freeze in the window box? The dirt is just about 6 inches deep...but that means there's barely an inch of dirt underneath them. Is this a bad idea?