I'm very new to gardening, and loving it.
I've recently found Verbena Bonariensis, and have put 3 plants in my garden, each about 3 foot tall.
I've searched the internet on how to prune/dead head these, and there is very little.
I've found that I need to wait until the flowering finishes.
And I really struggle with getting my mind around the whole pruning aspect in general (especially where on a plants stem you cut?).
Would anyone kindly send a link on the above? I live in Hackney, London, and it is relatively warm here at the moment. The verbena still has flowers, so I won't do any cutting yet.
Many thanks in advance.