Plot:

Some huge thistledown floated into Paula Gates’ hotel room and her friend Marge Main, wanted to show it to botanist Dame Sybil Smith. But when the girls went to Flagge Manor, where they thought the botanist was staying, it was denied that she was there. On returning to the hotel the girls found that one of the thistle seeds had taken root and was growing at an alarming rate.

Notes:

Appeared:

• Plants of Peril –  Judy and Tracy:  #1320 (27 April 1985) – #1327 (15 June 1985)