Pinus strobus 'Niagara Falls', commonly known as the Niagara Falls White Pine, is a cultivar of the Eastern White Pine. Here are some key points about this plant:

1. Appearance: Niagara Falls White Pine is a weeping variety of the Eastern White Pine. It features long, pendulous branches that cascade downward, creating a waterfall-like effect. The needles are soft and bluish-green in color, and the overall form of the tree is graceful and elegant.

2. Size: This cultivar typically grows to a height of 4 to 6 feet and can spread to a width of 6 to 10 feet (2.4 to 3.7 meters). Its size can vary depending on the growing conditions and the age of the tree.

3. Growth Rate: Niagara Falls White Pine is a relatively fast-growing tree compared to other weeping varieties. Its cascading branches can add several feet of growth per year, creating a dramatic focal point in the landscape.

4. Sun and Soil Requirements: This tree prefers full sun to partial shade and thrives in well-drained soil with good moisture retention. It can tolerate a range of soil types, including loamy, sandy, or clay soils, as long as they are not overly wet or waterlogged.

5. Hardiness: Niagara Falls White Pine is cold-hardy and can tolerate freezing temperatures typical of its native range in eastern North America. It is suitable for USDA hardiness zones 3 to 8.

6. Landscape Use: Due to its weeping habit and graceful form, Niagara Falls White Pine is often used as a specimen tree in gardens, parks, and larger landscapes. It can also be used to create a focal point in mixed borders or as an accent plant in rock gardens or Japanese-style gardens.

Overall, the Niagara Falls White Pine is a stunning and unique tree that adds elegance and visual interest to any landscape with its cascading branches and soft, bluish-green foliage. Its relatively fast growth rate and cold-hardiness make it an excellent choice for gardeners seeking a striking and low-maintenance tree for their gardens or landscapes.