This card shows the so called "Gut Bustedt". It's an old manor not far away from where I live. It's famous for it's large garden. Often school classes visit it to learn something about nature and biology. In January it celebrated it's 600th birthday and the Deutsche Post issued a special postmark.
Stamp: Pfingstrose (0,62 EUR) with special postmark - Issued: 04-12-2014