When you purchase plants, they will often have an indication of their hardiness zones. This means you plant will have the best success if you live in the zones indicated. You can see some examples from some packages by clicking here. The higher the number, the warmer the zone - zone 7 is much warmer, on average, than zone 4.

Thursday, August 5, 2010. Convergent Evolution, with a twist. Convergent Evolution - Completely different lineages independently arrive at a similar set of adaptations to deal with stress, herbivory, or whatever. Two distantly related succulents who both found the pin-cusion look quite fashionable. Why am I green? Are these Sepals or Petals? And most importantly, Why am I wearing a Tuxedo? This is something few plants have had to ask themselves, .