How to OverwinteraButterflyBush Indoors. It is common to move tender plants inside to protect them from cold weather. Buddleia grown in cold zones should be dug up and placed in potting soil in containers. To overwinterabutterflybush in areas colder than zone 5, dig the shrub up from the ground in late summer or early fall and place it in a container with potting mix. To truly attract butterflies, you need to garden for their entire life cycle—not just their wings. Here’s how to make abutterfly garden that welcomes life in all its stages. In conclusion, while overwinteringbutterflybushes in pots can be challenging, it is possible with proper care and preparation. Choosing a suitable container, providing insulation, trimming the plant, and ensuring adequate watering are all essential steps in helping the butterflybush... Avoiding ButterflyBush Winter Kill: Learn How To OverwinterAButterflyBush. Purple butterflybush with butterfly.Many butterflies, such as the Monarch and Painted Lady, overwinter by migrating to warmer climates, starting in the North and then traveling South during the fall. Overwintering. They overwinter in large colonies in select mountain forests of Mexico and California. They enter reproductive diapause, relying on stored lipids for survival as they cluster on trees for warmth until they migrate north in spring. ButterflyBush Winter KillHow to OverwinteraButterflyBush IndoorsHow to OverwinteraButterflyBush Indoors#. It is common to move tender plants inside to... How do I overwinterbutterflybush and other tender woody plants? In Iowa, there are several woody plants that are marginally hardy and grown more like perennials.Plants like butterflybush, crape myrtle, big leaf hydrangea and some roses will have die-back during the winter. Help For OverwinteringButterflies. When it comes to helping butterflies get through the winter season, there’s not a lot you should do. In fact, not doing some of your usual winter garden prep can actually benefit butterflies that overwinter in your yard. Some butterfly adults migrate south, overwintering in warmer climates. Monarch butterflies are known for their astonishingly long spring and fall migrations. Buddleia, abutterflybush, is well known for attracting butterflies. But it can be invasive. Fortunately, there are always native shrubs that will work just as well. Think about flower color and form. Bold swathes of blooms will keep butterflies happy. How Do You Winterize AButterflyBush? To overwinterabutterflybush in regions colder than USDA Zone 5, it’s essential to dig up the shrub in late summer or early fall and transfer it to a container filled with potting mix.