411 REFERENCE · Wikibooks
Beekeeping/Plants for Bumblebees
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Bumblebees have a rather long tongue; shorter than those butterflies like atalantas but longer than those of honey bees. As such, they prefer flowers such asHDRA encyclopedia of organic gardening by Pauline Spears:
Cynara scolymus
Monarda
Centaurea montana, Centaurea scabiosa, Centaurea nigra
Digitalis purpurea
Salvia spp
Agastache foeniculum
Lotus corniculatus
Achillea millefolium
Solidago
Lonicera periclymenum
Lobelia cardinalis
Origanum
Trifolium
Tropaeolum majus
Pulmonaria saccharata
Marrubium vulgare
Phacelia tanecetifolia
Leucanthemum x superbum
Centranthus ruber
Echium vulgare
References
Note
It should be noted that the list of plants mentioned above may or may not be native to your area. As such, if you wish to use them, check whether they are native to your area first.