Butterfly Garden Plan, Host Plant Design, Native Monarch, Zone 7b-8a (PDF)

A drawn, to-scale planting plan for a 52 ft x 27 ft garden built on LARVAL HOST PLANTS - and naming, with scientific names, the butterflies NC State Extension documents each one as feeding.

A BUTTERFLY GARDEN FULL OF NECTAR IS A FILLING STATION, NOT A HABITAT

Nectar plants feed adult butterflies, which can fly. They will find your garden, drink, and go somewhere else to breed. What decides whether butterflies are produced on your property is host plants - the specific species their caterpillars can actually eat. Most caterpillars are fussy to the point of absurdity, and a butterfly will not lay on the wrong plant.

So this plan is built the other way round from the usual one. Host plants first, nectar second - and the schedule prints which butterfly each host supports, quoted from the plant's own page rather than from memory.

WHAT YOU GET (7-page PDF, instant download)

- The plan, drawn to scale, on a full page
- Plant schedule: 56 plants, 8 species, with mature size, light and position
- The documented larval hosts, with scientific names and flight periods, quoted
- A USDA hardiness zone range on every single plant, looked up individually
- The plant I could not include, and exactly why
- Installation sequence, and the one thing that ruins a butterfly garden
- Sources, cited

THE BUTTERFLIES, NAMED

American plum hosts five: Coral Hairstreak, Eastern Tiger Swallowtail, Spring Azure, Viceroy and Red-spotted Purple. Spicebush hosts Spicebush Swallowtail and Palamedes Swallowtail. Both milkweeds host Monarch. White turtlehead hosts Baltimore Checkerspot. Golden alexanders hosts Black Swallowtail. Every one of those is printed on the plant's own NC State page, with the scientific name, and the plan quotes it.

HOST PLANTS ARE SUPPOSED TO LOOK CHEWED

This is the part nobody warns you about. A working host plant has holes in it. Milkweed stripped to the stems in August means the plan is succeeding - that is monarchs. The single fastest way to ruin a butterfly garden is to treat the caterpillar damage. Never spray anything, including organic insecticides: Bt and spinosad both kill caterpillars, and caterpillars are the product.

WHERE I COULD NOT SAY AS MUCH AS I WANTED

Purple passionflower documents three named hosts - Gulf Fritillary, Variegated Fritillary and Zebra Heliconian - and it is not in this plan. NC State prints no height and no spread for it at all, and this is a to-scale drawing. I will not draw a circle whose size I invented. Plant it on a fence beside the bed instead; the plan says so.

White turtlehead's page names Common Buckeye as a second host and then adds, on the same page, that the Common Buckeye rarely uses this host plant in North Carolina. Both halves are printed in the plan. I am not going to quote you half a sentence.

WHERE IT APPLIES

Drawn from USDA Zones 7b-8a - the North Carolina Piedmont. Also upstate South Carolina, north Georgia, middle and east Tennessee, central and southern Virginia, and the warm Piedmont edge into Maryland. Most species run from Zone 3a. What does not travel is the butterfly list: ranges and flight periods shift with latitude, and the flight windows quoted are the ones NC State prints for this region.

WHAT THIS IS NOT

Not a design for your address. Not a habitat certification of any kind. I am a licensed North Carolina landscape contractor (CL.1872), not a professional engineer and not a registered landscape architect.

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