04/19/2026
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You planted flowers for pollinators. You chose by color. Almost nothing showed up.
The problem isn't color. It's shape.
A butterfly can't feed from a tubular flower because she needs a surface to stand on. A hummingbird won't bother with a flat flower because there's no nectar tube deep enough to be worth the hover. The shape of the bloom determines which pollinators can physically reach the nectar inside.
Color is the advertisement. Shape is the door.
šæ Four flower shapes and who they let in:
- Tubular (salvia, penstemon, honeysuckle, columbine, bee balm) ā long narrow blooms with nectar pooled at the bottom. Only pollinators with long reach can access it ā hummingbirds and hawk moths primarily. If you want hummingbirds, plant tubular
- Flat and open (yarrow, coneflower, black-eyed Susan, milkweed, dill in bloom) ā a landing pad with nectar right at the surface. Butterflies need this shape because they perch while feeding. Short-tongued bees, hoverflies, and small wasps all use flat flowers easily. If you want butterflies, plant flat
- Bowl (magnolia, poppy, single-petal roses, crocus, water lily) ā wide enough to crawl inside. Beetles have been pollinating bowl-shaped flowers longer than bees have existed. Bumblebees also work bowl flowers by vibrating inside to shake pollen loose
- Composite head (sunflower, zinnia, cosmos, aster, goldenrod, daisy) ā what looks like one flower is actually hundreds of tiny individual florets packed together. A bee walking across a sunflower head visits dozens of florets in one stop. Almost every pollinator type can feed on composites
A garden planted with one shape serves one group. A garden with all four feeds the full range.
The pollinator doesn't choose by color. She chooses by whether her body fits the bloom š±