Backyard butterflies

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Eric Raun of Silver Spring spends hours in his back yard, watching for butterflies. But he doesn't leave it to chance. To attract the winged creatures, he created a butterfly garden, using the plants butterflies use for nectar and laying eggs. Caterpillars also use various plants in the garden for food.

In 1993, Mr. Raun's first year of butterfly gardening, he saw 14 butterfly species on his property. Since then, he has added many plants to the area, including marigolds, Brazilian verbena, red clover and bloodflower, which have attracted up to 40 butterfly species in a single season.

"If you put the plants in, the butterflies will come," Mr. Raun says. "It's just amazing to see them. They are very beautiful. They all have different patterns. It's neat to see them fly."

Butterfly gardens usually start to bloom in May and are in full swing by July. Most of the plants continue to attract butterflies until midfall. The gardens, which easily can be maintained in a back yard, are habitats for the fragile creatures. They also provide the opportunity for butterfly lovers to observe the insects.

"Just having a few plants enables more butterflies to live in the area and increase the population of butterflies," Mr. Raun says. "It helps them live longer."

The ideal garden for butterflies contains plenty of sunshine, shelter from the wind, a reliable source of nectar, host plants for egg laying and for caterpillars to eat, protection from predators, and water. It also should have a combination of annuals, perennials, trees and woody shrubs that provide a suitable environment for the various stages of the life cycle of the insects.

An adult butterfly, which eats nectar, will lay an egg on a host plant. The egg hatches into a caterpillar or larva, which often enjoys eating the host plant. The caterpillar forms the chrysalis or pupa, usually on a twig. The chrysalis then hatches into a butterfly.

Mr. Raun's favorite stage is observing the chrysalis open into a beautiful butterfly. On the surface, the chrysalis may look dead, but a creature with wings of intricate designs and intense colors is being formed inside.