A good number of people would rather send something that is still there in six months, and for an office or a hot flat that is often the better gift.
We keep orchids, peace lilies and a few foliage plants, potted here and sent with a card of honest instructions: how much water, how much light, and the one mistake that kills that particular plant.
They cost more than a bouquet and last a hundred times longer. For a colleague leaving or an office reception, this is usually what we suggest.