Bought one in May, when it was about 5 inches in length. Placed in large barrel pot at front of house, where it gets 3 hours direct sun, late morning to early afternoon.
Today it is about 5 feet in length and has taken on a mounded appearance as well. The color is intense, the growth vigorous and care is easy.
Must water regularly and often 2x daily on hottest days. Not sure if it even need fertilizer/feeding but it has not hurt.
One item of note: Slugs LOVE to munch on this plant, so take great care to check regularly for damage and even better plant far from where slugs like to live.
Overall one of my 4 or 5 most favorite PW plants.