What kind of winter protection should i put on Musa Basjoo in zone 7a for it to survive?
Winter protection for musa basjoo is important as the plant can be affected by low temperatures and frost. Here are some recommendations:

1- Choose a hardy variety that is adapted to your area's climate. Some popular options include "Muhly", "Red Maiden", or "Royal Standard".
2- Provide the tree with enough water, but avoid overwatering, which can cause root rot.
3- Position the tree so that it receives full sun exposure during the day. This will help to regulate its temperature and prevent excessive heat loss.
4- Add a layer of shredded bark or mulch around the base of the tree to provide moisture retention and insulation.
5- If necessary, apply a protective spray to reduce the risk of leaf damage from wind or ice.
6- Monitor the weather and adjust the watering schedule accordingly if needed.
7- Keep an eye on the tree and replace any dead or diseased leaves regularly.
8- In severe cold conditions, consider moving the pot into a warmer location or covering it with a plastic bag.
9- As the tree matures, you may need to prune it occasionally to maintain its shape and improve air circulation.
10- Finally, be sure to follow all recommended planting and maintenance guidelines provided by your nurseryman or grower. This will ensure the best possible outcome for your musa basjoo.