Butterflies have spurred the creation of colorful and
water-saving gardens not only in South Florida but across the
country. Wildflowers, flowering trees, bog plants, fruit trees and
especially native plants are the sources of nectar for adult
butterflies and food for their larvae.
Among the South Florida trees that are especially useful in
butterfly gardens are wild lime, Zanthoxylum fagara, for the
endangered Schaus' swallowtail and the giant swallowtail; desert
senna, Senna polyphylla, for the cloudless sulphur; fire bush
for several of the bright yellow sulphurs; citrus for giant
swallowtails.
Many flowers offer nectar to adult butterflies and skippers.
(Skippers seem at first glance to be fairly drab butterflies with
hooks on their antennae, but if you look carefully, you will find
their upper wings to be beautifully marked.)
Butterfly nectar plants offer a source of energy to butterflies
that keeps them active during their short lives. Milkweeds are among
the best known nectar plants because they also are hosts for the
monarch larvae, which eat them to smithereens without actually
killing them.
Some additional South Florida nectar plants are butterfly sage
(Cordia globosa), which seems to be full of small skippers
throughout the day; climbing aster (Aster
caroliniensis); fire bush (Hamelia patens); golden
dewdrop (Duranta repens), which has blue/purple flowers but
golden berries that are responsible for the common name; pentas;
verbena and Spanish needles (Bidens alba).
Bidens is a wonderful daisy-like weed that roams the corners of
disturbed areas and ill-tended gardens. It is easy to propagate from
the seeds that cling to your socks.
Wild coffee is a good nectar plant for ruddy daggerwings. Green
shrimp plants are supposed to be nectar sources for the glorious
green and brown malachite butterfly, but rotting fruit also has been
know to draw them in.
Butterflies may sip nectar opportunistically, but they are
absolutely specific about where they lay their eggs. That's why it's
important to have particular plants in your garden if you want to
attract and keep certain butterflies.
Monarchs go to milkweeds like kittens to milk. Their caterpillars
will eat leaves, stems and flowers, but usually don't kill the
plant.
Giant swallowtails are the bane of citrus growers (or were until
citrus canker came along), and look like big bird droppings on the
tops of leaves. Touch one, however, and it sticks out a red forked
tongue-like thing called a diveticulium gland. Black swallowtails
love plain old garden-variety parsley.
Gulf fritillaries, julias and zebra longwings set their children
loose among passion vines, and a native Passiflora suberosa
is the creme de la
creme.