Little Missy sedum plant doesn't thrive in freezing temperatures. Although it can survive cold conditions, it always does much better in hotter temperatures and dry climates. Don't forget that the Little Missy plant is a succulent that has fleshy leaves with plenty of water contained inside. Thus, there is always a high risk for such plants to get frost-bitten. To avoid this, never forget to cover Little Missy sedum for the winter period, or bring it inside if possible.