Many perennial and biennial herbs live throughout the winter, despite freezing temperatures ... If starting sage outdoors from seed, sow about 1/8 inch deep and around the date when, on average ...

On weeds that over-winter, fall tillage is more effective than spring tillage ... Fallow may also be used to control perennials such as Canada thistle and perennial sow-thistle. With these species, ...

Every winter, the foliage dies off, but the creeping root system is still ... As the creeping root system of Californian thistle is deeper in the soil than the residual herbicide, the plant is ...