The Grower's Handbook by David Robinson magic If the probe face is

If the probe face is dirty

Tough Skin ProtectsGive your plants Rhino Skin to increase the rigidity of the cell walls making your plants stalks more rigid

Probe cleaning and correctly storing pH probes ensures you get the most accurate readings possible and will maximize the life of a probe

it is best to dig into the soil before applying the fertilizer

spotted cat's ear

The Grower's Handbook by David Robinson magic If the probe face isThe Garden Sage David Robinson is a true cash crop professional that has been guiding gardeners to their greatest successes for over 15 years. Working full time on the retail floors of busy hydroponic stores in British Columbia has allowed the Garden Sage to deal with an incalculable variance of challenging situations.