What does high drainage mean for watering requirements in greenhouse media?

High drainage in greenhouse media means that the media allows water to flow through it more easily, reducing its ability to retain moisture. As a result, plants growing in high-drainage media will dry out more quickly than those in media with lower drainage capacity.

This characteristic necessitates more frequent watering to ensure that plants receive adequate moisture. We want to maintain an optimal moisture level for plant health, and in the case of high-drainage media, since the water drains away quickly, growers must monitor the moisture levels closely and water more often to prevent the plants from experiencing drought stress.

In contrast, other options imply either a reduced need for watering or an unchanged scenario compared to traditional soil media. In environments with higher drainage, relying on less frequent watering or maintaining the same frequency as soil could lead to under-watering, negatively affecting plant health. Hence, understanding high drainage media directly correlates with a requirement for more frequent watering.