Buddleia seems to be a wildlife magnet, I've seen large bumblebees take a liking to it aswell, I've not seen honeybees on mine (yet) but I imagine they can access it too.
Buddleia globosa is by far the most popular plant I've ever grown with respect to bees. Last year we counted over a hundred bumblebees, of many species, on it at the same time before we got bored and stopped counting. It does flower that long but for a week or two it's absolutely buzzing. The only downside is it flower on last years wood so tends to get much bigger than the other buddleia species you can just hack down at the start of spring.
I can count 30 bumbles on this picture of ours a couple of years ago, which is only a fraction of the plant, plus one butterfly.
Used to have a B globosa in a garden some 30 years ago - yellow flowers - wouldn't like to say whether it attracted more insects than the basic ones or not. Too long ago
For us globosa attracts more because it's so early compared with the other buddleia which flower in mid summer onwards, when there is more flowers out. At the moment we have a field of echinops, eupatorium, and oregano so the buddleia don't get much attention. My favourite buddleia is the hybrid with yellow flowers that's out now, I think it's called sungold or something.
Interesting, I'm going to have to look at the different varieties of buddleia because they sound nice. Buddleia davidii is great but if there are more interesting varieties out there, I'm gonna have to see them for myself.
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I can count 30 bumbles on this picture of ours a couple of years ago, which is only a fraction of the plant, plus one butterfly.
My favourite buddleia is the hybrid with yellow flowers that's out now, I think it's called sungold or something.
I live in west central Scotland - not where that photo is...