Comment by Asparagirl

Even today, within what could be called the “fancy houseplant” community of garden enthusiasts, we hear stories about Indonesian farmers purposely and repeatedly putting houseplants through airport X-Ray machines to try to induce variegation in their offspring. There are also plants like the Pink Congo, where growers use ethylene gas and auxin hormones to temporarily create pink foliage: https://www.wired.com/story/pink-princess-plantfluencers-pin...