Once the flower fades, the flower and stem can be removed. The leaves must remain on the plant until they turn yellow and die. The leaves provide food to build up the bulb and form next year's flower bud. Foliage cut for flower arrangements is taken from several plants, not all from one.
There isn’t a definitive answer to this question. You should look at each home for its individual characteristics. Generally, older homes may be in more established neighborhoods, offer more ambiance, and have lower property tax rates. People who buy older homes, however, shouldn’t mind maintaining their home and making some repairs. Newer homes tend to use more modern architecture and systems, are usually easier to maintain, and may be more energy-efficient. People who buy new homes often don’t want to worry initially about upkeep and repairs.