Well, I've been meaning to do this for awhile...I'm changing my vote from broccoli to borage. After I posted my vote on broccoli the next post was borage, so I said okay, I'll see If they have borage seed at the local nursery. Indeed they did, 25 seeds for about $2.00. I say man, these are pretty expensive seed. Anyway, I plant them in pots under lights in march, and get 22 plants. I gave a couple to a friend, and the rest I put in my yard in different places. By the end of the year, the plants I put out had already reseeded and new plants were coming up. A single plant doesn't have too many blossoms blooming at once, so its best to plant a patch. The bees indeed do love this plant. They were the last plant the bees would leave even as the sun was setting. Those plants that had come up from the seed at the end of the summer amazingly survived the winter with sub zero temperatures ( they were under snow that year) and were the first thing to bloom in the spring, about the same time as my pie cherry tree blooming, which the bees also love.. The plant seems to have two stages. When it first grows, it stays close to the ground, no blooms, but quite hardy, able to resist some pretty cold temperatures in this stage. Next it shoots up a primary stem kind of like a hollyhock that the blooms form on. It's pretty flimsy and falls over easily so it helps to stake it. I found that putting a sheet of concrete reinforcement wire horizontally about 18 inches to 2 feet above them which they can grow up and through works well as a support, especially for a patch of about 5 x 8 feet. This one patch I had from only 10 of the plants from the first year, produced around a 100 plants the next spring. When this patch was in full bloom, I'd estimate there was easily over a 100 bees on it. Unfortunately I hadn't put the wire on it at that time and on a windy day it all fell over from the center out. That pretty much finished it off, so I rototilled it under and replanted (late July) putting the wire on top this time and it was just beginning to flower when I got a 20 degree night in October that killed the flowering plants. The plants in the first stage are still alive. Its now December and most everything is dead except for the 1st stage borage and my broccoli. The broccoli managed to survive a 13 degree night up close to the house a month ago and was still blooming with a couple of bees visiting. Its been unusually warm this winter, in Aurora Colorado, no moisture hardly at all. I'm not expecting to make it through tonight with the expected lows around 5 degrees. It snowed last night but not enough to cover and protect the plants. I'm curious to see if the borage can survive the near zero temperatures without a snow blanket. But, if it doesn't, I have a plenty of seed to plant this spring. Oh, one other thing, when the borage starts blooming, it doesn't stop until it's dead, so it has a long bloom life. My broccoli's pretty good, it can bloom for a month, but once it starts making seed, it's pretty much done. The cat mint I have, the bees really like, but it's blooms only last few weeks, but can be extended by cutting off the seed pods. I have Golden rod too, but the bees here don't seem too interested in it. I think it's because it attracts all kinds of mason bees in huge numbers. HollyHocks, so so, crimson clover, the bumble bees like it, honey bees once in awhile. That's what I have in my garden.