Re: Overwintering yucca filamentosa
There are several options. Here are three:
1. You could take it out of the terracotta pot and heel it into the Veg garden without a pot, store the terracotta somewhere dry, and then next spring dig up the yucca and re-pot into the 10″ terracotta.
2. You could find a plastic pot that will fit just inside of the 10″ terracotta to make the removal and overwintering a little simpler, just lift the plastic pot out in the fall and heel into the veg pot and all. Then next spring place the yucca, plastic pot and all back into the terracotta.
3. You could plant the yucca into a plastic pot that is just big enough for the yucca, heel into the veg with the plastic pot and then next year put the Yucca, pot and all into a much larger decorative pot and combine with annuals or other perennials.