Some plants put out the herbaceous equivalent of neon signs. Look at this pair of jewelweed blossoms.
Those dots are markers, leading pollinating insects and hummingbirds into the center of the blossom, where the nectar and pollen are found. "Eat here" is the likely message. Successfully pollinated jewelweeds celebrate by turning each blossom into a seedpod that can explode its contents across a wide area for something so small (hence the other common name, "touch-me-not").
Other plants produce flowers in abundance. What we call the flowers of daisies (and their relatives, the asters, coreopsis, zinnias, sunflowers, and whatever I'm leaving out) are in fact not flowers; they're modified leaves. The little yellow things in the center of this "Wild Romance" blossom are the individual flowers.
That's a lot of baby asters waiting to happen.
An unsprayed planting attracts lots of pollinators. This patch of obedient plant frequently hosts so many bees that their buzzing can be heard several feet away.
A not-particularly-outdoorsy relative noted with some surprise that the bees express absolutely no interest in nearby humans--and why would they, with all those tubes of nectar and pollen attracting their attention?
The feathery tubes of liatris have been one of this year's more popular eateries, with the same stem often hosting multiple pollinators. There seems to be plenty for everyone.
And it's not only flowers that feed animal visitors. Once all that pollinating has resulted in seed formation, seed-eating creatures come in for the harvest. I've never been able to photograph a goldfinch in action, but this semi-denuded echinacea seedhead is the remnant of a goldfinch snack.
I sometimes wonder why we bother with bird feeders.
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