Millennials Aren't Buying Homes, but They Are Spending Thousands on Houseplants by Alina Dizik A generation ago, 20-somethings living in rental apartments usually saved to buy their first home. Elizabeth Margulis is saving for her next houseplant. Since moving into her Chicago two-bedroom three years ago, the 28-year-old wardrobe stylist has bought about 30 plants — spending a total of $1,500, nearly as much as her $2,000 monthly rent.