Time to act:
Jun, Jul, Aug, Mar, Apr, May, Dec, Jan, Feb, Sep, Oct, Nov
These quick-growing plants are able to spread rapidly to create dense, thorny thickets of stems, which are able to root at the tips. The plants produce blackberry fruits, which contain seeds that can grow into new plants. The tough roots are able to grow again when the stems are cut down.
Spreading thickets of thorny, woody growth, which compete with cultivated plants for light, water and nutrients.
Find it on
freshly-cultivated ground, established borders, undisturbed ground, old walls, cracks in paving