Lupins are easily recognized by their large, cone-shaped heads. The growth range for these flowers is vast, ranging from just under 1 foot tall to almost 5 feet tall. Their bright colors and tolerance of different growing conditions make them the perfect addition to any flower garden. Lupins can also be cut and brought inside to brighten up your living space. In order to get the most out of your flower, you must know how to properly cut them.
Decide when you want to cut the lupin. The best time to do this is in the morning or early evening, when the sun is still present but the temperatures are cool. Keep in mind that flowers are generally more fragrant in the morning.
Cut the stem at an angle with a sharp, non-serrated knife. An angled cut leaves more of the inside of the stem exposed, which in turn lets more water into the flower. Cut the stem at least 2 inches longer than you think you'll need.
Place the flower in a vase filled with warm water immediately after you cut it.
Trim a 1/2 inch off the end of the stem every three days. The pores of the stem naturally close up over time and prevent water from getting to the flower, but regular fresh cuts will prevent this from happening.