The Ficus triangularis is a small, tropical fig tree with triangular-shaped leaves. Commonly grown in containers indoors or on patios, the Ficus triangularis grows to only 8 feet tall and 4 feet wide. The Ficus triangularis is a low-maintenance tree, requiring only occasional watering, some fertilizer and little, if any, pruning. You can grow your ficus outdoors if you live in a warm climate or indoors in a container for most other climates