Each short growing season it reaches heights of twelve to twenty feet, and grows well in any climate or soil condition. Its roots penetrate deep (one foot per month), breaking up compacted and overworked soil, and combating soil erosion. Since it grows so quickly, it could be a year round crop, harvested twice a year, or it could be planted as a second crop, after harvest of a different one. Hemp is also resistant to UV radiation damage, a current threat to 30-50% of soya production. In fact, hemp actually flourishes in the presence of high UV radiation since it protects itself by creating more cannabiniods.