Further to Ken's comment about the many kinds of bees in Oregon, where he and I live: At least up here at 1600 feet elevation, the only bees present in midwinter in the bulb frames are European honeybees, which are fairly common in this area. I don't know if they come from domestic hives (which would be at least half a mile away) or if they are "feral." The bumblebees (two kinds, I think) appear in mid-March, and the mason and other kinds of smaller bees a little later. Many fritillarias are pollinated by wasps, and some geophytes by flies or even beetles; and then there are the many plants from the Americas and South Africa that have evolved to be pollinated by birds. Here in the country there is almost every kind of pollinator at one time or another, and so the bulbs in the frames (more accessible than in a greenhouse) set a great deal of seed and rarely need to be hand-pollinated. Around here people can put out roadside signs "No Spraying" to keep the county or state road department from spraying herbicides and pesticides on their property frontage. This is generally to protect bees and livestock, but it also helps native plant populations (and unfortunately, blackberries). Jane McGary Northwestern Oregon, USA