Answer: Cercis canadensis (Eastern Redbud) is native to the southeastern and central United States, from New Jersey south. It is a small, deciduous tree, 20' to 30' tall, 25' to 35' wide with a rounded shape. It grows in full sun to light shade. It likes a moist, well-drained, soil, but is adaptable to most soils that are not permanently wet. There are many types to choose from:
'Covey' (Lavender Twist?) - A weeping form that has stiff, contorted, arching branches.
'Forest Pansy' - A very showy cultivar where the foliage emerges a vivid burgundy color. As the foliage matures the underside of the leaves remains purple-red and the upperside turns dark green. Flowers are more purple than the species. This cultivar may not be reliably hardy below -10 to -15F.
'Pinkbud', 'Withers Pink Charm' and 'Rubye Atkinson' - Forms that are similar to the species except that the flowers are clear pink. This flower color may be easier to combine with other colors in the landscape.
'Silver Cloud' - Has variegated foliage that is irregularly blotched and splashed with white. Green reversions occur and must be removed. Benefits from shading and a cool location. Does not flower heavily. A specimen or curiosity plant.
'Alba' and 'Royal White' - Two forms with white flowers and foliage that lacks any purplish pigmentation as it emerges.
There is also a Western Redbud tree (Ceris occidentalis) but it is not hardy below 20F and would not be suitable to grow in IL.
Hope this answers all your questions!
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