Hemp comes from the stems of the Cannabis Sativa plant which are processed to release the fibers. The resulting yarns are woven into a strong, coarse cloth that looks and handles much like linen.
-Hemp frays and wrinkles badly.
-It has poor elasticity and is difficult to ease.
-Hemp fabrics shrink and soften when laundered.
-It is absorbent and comfortable to wear.
-It is strong when wet and resistant to mildew.
Compared to Linen, it is stronger, coarser, and more durable. It dyes well and dries quickly.
Hemp is a great fabric to use when looking for all natural fibers.
Source- The Fashion Designer's Directory of Shapes by Simon Travers-Spencer and Zarida Zaman
Claire Shaeffer's Fabric Sewing Guide 2nd Edition