Sungold is a popular variety of Butterfly bush, which belongs to the Butterfly Bush genus (Buddleja davidii 'Sungold'). Typically, Sungold has a Perennial lifecycle, so it tends to grow and mature over the course of three years or more. Sungold normally grows with a shrub-like habit to a mature height of 1.80 metres (that's 5.85 feet imperial).
As Sungold Butterfly bush is a low maintanence plant, it is great for beginner gardeners and those that like gardens that don't need much overseeing.
This variety plant info is provided by the myfolia gardener's wiki. All details about Sungold have been kindly provided by our members.
By our calculations, you should look at sowing Sungold about 56 days before your last frost date.