What happens when a Venus fly trap dries out

A few weeks ago I was away for a conference. It was very interesting and I have a great time. However, while I was away the friends I had asked to look after the fly trap forgot and it dried out! I have been watering it a lot since I got back and it is beginning to recover.

You can see a lot of the heads have gone black but there are plenty of new green stems growing. Unfortunately the flowers I planted didn't do so well. In the pictures below you can see that just behind the heads of the flowers the stems have gone black. This blackness continued down the length of the whole stem over time.

I pulled one of the flowers out to see if it have grown roots before it died, and it had! In the picture below you can see a few very short roots that have bound to sand grains. So if it hadn't died due to lack of water it would probably have grown into a new plant. I will try again if the Venus fly trap grows any more flowers.