Viper’s bugloss (Echium vulgare) is a plant that is mainly popular with the bumblebees in the garden, which includes the Red tailed bumblebee (Bombus lapidarius). Here a female forages for nectar.

References
1 Nederlands SoortenregisterViper’s bugloss (Echium vulgare) is a plant that is mainly popular with the bumblebees in the garden, which includes the Red tailed bumblebee (Bombus lapidarius). Here a female forages for nectar.
References
1 Nederlands Soortenregister
Bombus terrestis group ♂︎
(Buff-tailed bumblebee group Western-Europe)
-Malva sylvestris-
Bombus terrestis group ♀︎
(Buff-tailed bumblebee group Western-Europe)
-Agastache foeniculum-
Bombus terrestis group ♀︎
(Buff-tailed bumblebee group Western-Europe)
Bombus lapidarius ♀︎
(Red tailed bumblebee)
-Malva sylvestris-