The top of a more mature Madagascar will bloom with pretty white flowers in summer, and often branch out at the point of bloom.Unique and quirky, this succulent plant doesn’t require much water or care.Because its spines are extremely sharp and plentiful on its silvery trunk, the Madagascar should be planted away from foot traffic or areas where kids or pets (or anyone) might accidentally touch it.Many Madagascars develop a swollen trunk over time (the botanical name means “thick foot”), adding to the unusual effect of this “palm” in a landscape planting.