Pampas grass, also known as Cortaderia selloana ... bear up to a million seeds over its lifetime. If planted in the front garden, it used to be cheekily thought of as a secret sign that its ...

This very confusion was evident on Reddit this week when a user posted an innocent-looking photo of his parents' front garden, asking: "Were your parents, like mine, proud of their pampas grass?" ...

The tall grass is one of the more exotic-looking plants to happily grow on UK soil and is popular with gardening fans thanks to its minimal upkeep - but it's not as highly regarded in other countries ...