this is still a young plant. depending on sun/shade level, they can get quite tall, like 4 to 6 feet. at one point mine got taller than me. i got rid of it because it (and a few others like it in purple and yellow and orange) was taking over my balcony, but if i ever have a yard, i would get another. but for now i stick with some of the newer smaller hybrids, they don't grow as well, but nice when they do flower. in time, yours will ALWAYS be in flower. year 'round. the stems can flower for a few years in good weather.