The limber pine is a Colorado native that grows in harsh environments, usually at higher elevations. Vanderwolf is a popular variety of limber pine that is not often seen in the landscape but is being planted more. It has a moderate growth rate and can grow up to 35 feet and up to 20 feet wide. It is sensitive to compacted soils, likes the sun and is drought, heat and salt tolerant. Twigs are so flexible they can be tied in a knot.