Answer: Butterfly Bush, also known as Buddleia davidii, blooms on new growth. Therefore, stems should be pruned back in early spring to encourage large, lush flower spikes. You can let it grow into a shrub form, (which could eventually be about 12'x15') but your flower "show" won't be as spectacular. FYI, I always prune back my Butterfly Bush on St. Patrick's Day to about 6"-10". Whether planted in the ground or in a container, your butterfly bushes should winter over outdoors without problem. If you're concerned about the potted plant blowing over in winter winds, you can cut it back after frost nips the foliage, or you can bury the pot in the ground until next spring.
Whiskey begonia is considered an annual. You can collect seeds from the flowers to begin again next spring or you can try to keep it alive by taking it indoors. If you bring it inside, remove spent flowers to encourage additional growth and place the plant in a brightly lit area.
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