'Glenn Form' is sold as RAINBOW PILLAR® and was selected and introduced by Edward Losely of Losely Nursery in Perry, Ohio. Found in a group of Amelanchier canadensis seedlings, it was chosen for its dense, upright and symmetrical growth habit. RAINBOW PILLAR® has white 5-petaled flowers and purplish black fruits typical of the species but less than 10% of the flowers produce mature fruit. Its leaves are unaffected by powdery mildew and turn a mixture of bright red and green in fall. It grows 15 to 20 ft. tall and 8 to 10 ft. wide.
Height: 15 - 20'
Spread: 8 - 10'
Spacing: 10 - 15'
Exposure: Part Shade (4 to 6 Hours) or Full Sun (6+ Hours)