43 out of 5 stars. In colder climates like ours the tubers get dug up. Pin On Floret Water feed and deadhead flowers regularly. Growing flowers for cutting . The flowers are glorious vibrant and keep on producing. The more you cut them the more they produce so be sure to cut deep into the plant. Then bring them inside to a cool dark place to rehydrate before arranging. 15 Fast-Growing Flowers for a Cutting Garden Say It With Flowers. Nicotiana langsdorfii is a particularly stunning species with drooping sprays of bell-shaped bright green flowers that blend well with other cut flowers in bouquets. Nothing beats fresh-cut flower arrangements. This plant needs to stay evenly moist so a thick layer of mulch is a good idea. Mix up colors shapes and sizes for a stunning kaleidoscope of a flower garden or alternatively stick to a limited palette for a simpler feel. Cut flowers in the early morning or evening not in the heat of the day when they are stressed. Cho...