What happens next?

How to plant arborvitae trees
Plant your arborvitae in fall or spring.
This will give the tree time to adapt in its new climate before the hottest summer months or frosts in winter. If possible, plant the arborvitae tree in late fall or early spring, depending on your preferences.

Possible answers:
(A). Because of their height, arborvitae plants do not make good indoor plants and must be grown outside. Choose a spot with full or partial sunlight.;
(B). Arborvitae trees will usually grow up to a height of 4 inches (10 cm). They produce large amounts of bright green foliage, but they will likely stop producing blooms within a year.;
(C). Arborvitae trees can grow to be 4 feet (1.2 m) or bigger. Plan to start with about 8 to 12 feet (3.4 to 4.7 m) of tree space before freezing.;
(D). If you select the wrong planting date, the tree will not grow and come crashing down. If you wish to plant arborvitae trees in fall, consider planting the tree in late spring or mid-spring.;
(A).