Note H — Green-House.
Reading edition
On examining these plants, when the first appearance of decay affected them, the decayed part was without exception at the surface of the soil, which was completely mortified, while the top and roots were apparently fresh. This led us to conclude that the cause was the effect of sun and water on the stem. We have since kept the earth in a conical form round the stem, thereby throwing the water to the sides of the pot, and kept them in the shade. Previous to doing this, we had quantities died every year, and now no plants thus treated die with us.