Family: Apocyanaceae (Dogbane or milkweed family)Native range: Central peninsula south to the KeysHardiness: 9B–11Lifespan: PerennialSoil: Alkaline to mildly acidic, moist soilExposure: Full sun to partial shadeGrowth habit: 10–30’+ longPropagation: Seed, cuttingsGarden tips: This is an aggressive vine that can grow in many directions. In a home landscape, it may be difficult to control. It is best suited for a fence, arbor or trellis. This plant is not tolerant of freezing temperatures.White twinevine (Funastrum clausum) is an evergreen twining vine with large clusters of fragrant flowers. It occurs naturally in swamps, moist hammocks, coastal strands and wetland edges. Flowers typically bloom in summer and fall, but may bloom throughout the year. Like many members of the milkweed family, White twinevine is a larval host plant for Monarch, Queen and Soldier butterflies. Their caterpillars have adapted to feed on the plant, which contains a milky latex that is toxic to most animals. The flowers are also an important nectar source for bees and wasps.