Black Starthistle
Centaurea nigra
3 offers · from £3.99
Black Starthistle (Centaurea nigra) is an aggressive, invasive species of weed found throughout North America, Europe, and Australia. With a long taproot and a rosette of thorny denim-blue leaves, it is not hard to spot this plant sticking out of the ground. Black Starthistle flowers are made up of a central spiky disc surrounded by purple and yellow bristles, blooming during the summer and early fall months. It can quickly take over entire landscapes and out-compete native species, damaging its environment. Taking active steps to eradicate Black Starthistle is important for re-establishing native biodiversity.
Photo: Taken Jul 27, 2018 by Manu Pacha. CC BY-SA · Trefle
Notify me when the best offer drops to or below:
Compared across 2 retailers currently integrated with GrowMuir.
Pack and plant sizes vary. The same-looking listing can mean a single plant at one supplier and a pack of several at another, and pot or plug sizes differ too. Check the size on the supplier’s own page before you buy — we’re working on pulling this information in for you directly.
