re: Honeysuckle- How invasive is it?

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Passiflora Incarnata is the only plant that a Gulf Fritillary butterfly will lay eggs on, and is the only leaf the caterpillar will eat. This is the state butterfly of Florida. If you've ever been to the beach in the fall and saw tons of smallish orange butterflies, that's them. They hatched and metamorphized on somebody's passion vine. They migrate all the way to central and south America, before flying back to find another passion flower vine to lay eggs on.

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we have tons of these every year. The caterpillars look like they will sting the shite out of you but are harmless