How fast will the plants that I order grow?
It's hard to say for certain, since so many factors - like weather, soil type, watering, fertilizing, and not least of all, the type of plant you purchased - all come into play. Perhaps you're familiar with the old saying about plants: first year sleep, second year creep, third year leap. This applies to plants in the garden center as well as plants you purchase online. They generally spend their first year growing roots in their new home, the second year they have more energy to put into growth, and the third year, they are growing and flowering vigorously. With proper care, most perennials and shrubs should grow anywhere from several inches to several feet (in the case of arborvitae like Full Speed A Hedge and Green Giant) a year once they are established.