Dreaming of a neighbor's white birch bonsai tree while your teens are playing outside can hold several meanings.

The white birch tree often symbolizes new beginnings, potential, and resilience due to its ability to thrive in various conditions. Its presence in your dream may suggest that you are reflecting on your own growth or the growth of your family, particularly your teenagers. This could indicate a desire for nurturing and guidance as they navigate their formative years.

The bonsai aspect may represent the careful cultivation of relationships or the need to maintain balance in your life. It might suggest that while you want to encourage independence in your teens, there is also a need for you to manage and guide their development in a thoughtful manner.

Having your teens playing outside indicates a sense of freedom, joy, and perhaps a reminder of the importance of play and social interaction in their lives. It could signify your contentment with their current stage of life, or a desire for them to enjoy their youth.

Overall, this dream may reflect your thoughts and feelings about family dynamics, growth, and the balance between nurturing and allowing independence. Consider how you can support your teens while also appreciating their growth and individuality.