Complex sentence: One leads to a side garden in which native plants are grown; said plants are often used in classes to further environmental education, and students may be seen outside in all weathers, tending to plants or engaging in various other garden-related activities.
Split into simpler sentences: One leads to a side garden in which native plants are grown. These plants are often used in classes to further environmental education, and students may be seen outside in all weathers, tending to plants or engaging in various other garden-related activities.