back in the spring, I planted a number of dahlia tubers - and this - whatever IT is- must have been amongst them. Does anyone have any idea what it is. It has only just started to flower. At first it looked like some sort of giant Helichrysum - but this weekend - beginning of October its starting to throw a yellow spikey flower. See pictures.
Well - that was superfast - It's a Knapweed - I was hoping for something a bit more exotic - but pleased to know whar it is. "Globe Centaurea is a robust perennial from the Caucasus, reportedly introduced to Britain in 1805. The Philadelphia nurseryman, Bernard McMahon, sent seeds of the species to Thomas Jefferson in 1812. Easily grown from seed, the plant forms clumps three to four feet high with large thistle-like flowers in early summer. Its chestnut-brown buds open to expose a crown of rich yellow florets."
