Here the honeybees have recovered somewhat from the 2011 levels where in many places there was not even a single bee to be seen I went from a bee an inch to 1 bee.
The recovery has been mostly because of an increased interest in beekeeping and managed hives. The managed hives swarm and restock the wild hives. Although in the long run as long as varoa and little hive beetles are out there, the managed hives will probably be the only ones that have a chance to survive long term.
Many individuals and a lot of farms especially the smaller organic and family farms are raising their own bees. We still have the problem where people still want to kill anything that tries to nest in their yard instead of calling a beekeeper in time to save the bees. The bees are useless once they have settled in or have been sprayed.
While the solitary bees don't live with the social bees, they do overlap in their territory. The solitary bees usually like different flowers. They all like sunflowers and they both will visit the heads. The carpenter bees like the long spikes of lavender and verbena and blue flowers more than the honey bees. The native yellow faced bee used to forage side by side with the honey bees. I haven't seen any of the native bees since 2011, I don't know if they are still around.
We don't have a lot of bee species. Honey bees were imported 150 years ago and it took more than one attempt to get them here alive by ship. There are no bumble bees, although people think the carpenter bees are bumble bees. We don't have squash bees either. Most of the native plants are in the pea family and other pollinators like wasps, flies, ants, birds, wind, bats, and moths do a lot of the pollinating.
To provide habitat for bees, they need a place to nest. Beekeeping is a good way to save some bees and get some honey for it. You do have to check with your local ordinances for where hives can be located. Here it is 25 ft from the property line. Since most residential properties are too small that means putting a beehive on the roof. Then there are the neighbors to consider.
Bees forage for up to a 2 miles but prefer to locate their hives within 1/2 mile of good forage. Bees like flat radial flowers that are scented like alyssum, fennel, brassicas in bloom, basil, mint, thyme, oregano, marjoram, onions and other herbs in bloom, Queen Anne's lace, penta, single flowered zinnias, asters, cosmos, daisies, sage, lavender, verbena single marigolds, cuphea, many vining flowers, fruit tree flowers, and sunflowers. Butterflies like milkweeds, butterfly bush, and catspaw.
In my yard the bees come for the Jamaican oregano, basil that has been left to bloom (African basil does not get downy mildew), cuphea, alyssum, roses, onions in bloom, fennel, sunflowers, single marigolds, Indian Hawthorne, and unfortunately the orchids. The alyssum, roses, fennel, cuphea, Jamaican oregano, African basil, lavender, peppers, eggplant, wild bitter melon, and orchids are in bloom in my yard almost year round. The neighbor's honey suckle vine that is encroaching into my yard also blooms nearly nonstop. Some of my citrus trees fruit three or more times a year and will have fruit and flowers at the same time. I water or it rains almost every day so the bees are on the foliage plants as well lapping up water from the leaves. Otherwise a shallow plant saucer filled with pebbles to land on and a half inch of water is a good watering hole for bees, butterflies, and birds. Bare ground is necessary for ground nesting bees like the squash bee (we don't have any of those here).
Shrubs, hollow logs, overturned pots, and even a flower are good resting spots for foragers to hide from predators. I used to find bees napping in the flowers at midday all the time. They would wake up and start foraging again once the weather cooled off.
I would have to plan my gardening around them. They don't mind company if you don't threaten them. If I have to work where they are foraging I coax them to another spot with a gentle shower from the hose to push them over a few feet. They usually buzz if I get too close. I have rarely been stung. The last time was when I did not notice that a bee had landed on my weeder and grabbed the handle and the bee by mistake.
One other thing you kinda have to do to keep bees safe. You have to avoid pesticides as much as possible to invite bees as well as other predators like lacewings, parasitic wasps, flies, and ladybugs. If you have to spray, then spray when the plants are not in bloom or disbud two days before spraying and keep taking off the buds until it is safe for them.
I usually only have to control erineum mites on the hibiscus because there are no effective predators or fungicides when the humid weather persists. The rest of the pests are taken care of by the garden patrol and spot treatment usually with alcohol.
Happy gardening in Hawaii. Gardens are where people grow.