[Hillside]

If agastache grows well in your area, the bees love it. It's a perrenial is many areas. Almost anything that is related to the mints is great.

Clover of one type or another is hard to beat.

 

[Joseph Clemens]

I vote for:
Vitex negundo incisa

Perennial, 10 foot shrub that blooms from late spring until first frost, bees love it.

 

[Michael Bush]

http://www.beesource.com/ubb/Forum2/HTML/000500.html

 

[kenr]

Thanks MB.

 

[kenr]

Sorry thanks MB.JC.Hillside

 

[Joseph Clemens]

Another excellent honey plant if you are in a location that only gets light frosts is:

http://www.imagesaustralia.com/bottlebrush.htm

http://www.floridagardener.com/pom/callistemon.htm

http://mgonline.com/bottlebrush.html

 

[jdb5949]

The JC-recommended bottlebrush is also an early source of pollen. My neighbor's bottlebrush was covered with bees last (mid?) February. I don't know the variety.