Coral vine (Antigonon leptopus) is also known as confederate vine, Mexican creeper and corallita. It is a native plant to Mexico and is hardy in the USDA zones 8 to 10. Coral vine is a perennial growing vine in frost-free growing regions and a deciduous vine in all other regions. It can easily grow 30 to 40 feet, which makes it excellent for privacy screens while still attracting hoards of butterflies.
Dig a planting hole for the coral vine that is three times the width of its growing container and about 1-1/2 times its depth. Space each of the planting holes between 6 and 8 feet apart if you are planting more than one coral vine.
Mix a 5-gallon bucket full of organic matter such as leaf mold, compost, aged manure or other like material into the soil you removed from the planting hole. Blend into that mixture 1 cup of granular, all-purpose fertilizer such as 12-12-12.
Place two to three shovels of the organic matter, fertilizer and soil mixture back into the planting hole.
Remove the coral vine from its growing container. Strike with a rock or small block of wood along the rim of the growing container to loosen the pot from the roots. Gently pull of the pot from the root system. Loosen the compacted roots with your fingers if the root ball appears to have any compacted or encircled roots. Remove the encircled roots with garden snips.
Set the coral vine into the previously dug planting hole. Check to be sure that it is sitting straight and level and that the top of the root ball is at the same level to the surrounding garden soil. Remove the coral vine from the planting hole and scoop in or remove soil until you are sure the coral vine is sitting at the appropriate planting depth.
Scoop in three to four shovels of soil into the planting hole. Pour water into the planting hole until it's about 1/2 full. Scoop in more soil to fill the planting hole after all the water has settled. Tamp down the soil with your hands or a trowel around the stem of the coral vine to eliminate any air pockets.
Create a 2- to 3-inch-high dam of soil approximately 16 to 18 inches in diameter around the coral vine (this is useful particular if the climate in your growing region experiences dry, arid summer weather). Water the coral vine thoroughly. Tie some of vine's tendrils or branches to the arbor, fence or trellis using gardeners twine to help train the coral vine to a trellis, arbor or fence.