evidence: Can this be true? Are there plants in the Himalayas that only bloom once every 400 years? If so, how would anyone know since humans don’t live that long? Hmm. Come along as CryptoVille investigates! Facebook users are sharing a photo of a beautiful flower called the Mahameru Pushpam, or Arya Pu. The text that accompanies it explains that it can be found in the Himalayas and only blooms once every 400 years. [...] I learned this hoax is sometimes shown with another real flower, the Protea (Protea cynaroides). The protea lives in South Africa and is dubbed the National Flower of that country. It’s a huge flower and comes in a variety of colors. But it does not open once every 400 years in the Himalayas.