Lamarck’s serviceberry typically grows to a height of 20 to 30 feet (6 to 9 meters) with a spread of about 15 to 20 feet (4.6 to 6 meters). It has an upright and rounded form, making it a great addition as a specimen tree or for creating naturalistic groupings.

Amelanchier lamarckii is a versatile and eye-catching tree that can be used in a variety of landscape settings. It works well as a focal point in gardens, as part of mixed shrub borders, or in naturalized areas. Its attractive flowers, colourful fruits, and impressive autumn foliage make it a valuable addition, providing year-round interest and beauty.