rhizosphere - the zone of chemical, biological, and physical influence generated by root growth and activity. The concept usually pertains to the soil-root interface but is sometimes extrapolated ...

Rootstocks, which consist mainly of a root system, determine the tree ... plants to suit both your interests and your hardiness zone. Growing plants is an opportunity to admire their flexibility ...

Root vegetables such as carrots ... To adapt this planting schedule to a different growing zone, just consider your frost and ...