Also, the stalks got thinner after they've woodened.
35+ Why Do Basil Leaves Turn Brown. If the basil plant stems are dark brown could be just older plant with normal dieback its common. Basil does not stay young for long and planting it two or three times a year is easier than trying to get fresh growth off an old plant.
Basil 101 From Growing Harvesting Basil To Using It In The Kitchen from www.attainable-sustainable.net
If basil leaves are turning brown while being grown in a container, the pot may be too small. This disease is also carried in the soil. Too much water, too little water and lack of sun will turn the basil leaf tips brown and cause them to curl.
Also, the stalks got thinner after they've woodened.
Even by rtaring the leaves the exposed new surfaces will go black becasue they are exposed to the air around them i've heard of coating your sliced apples with lemon juice in order to keep them from turning brown. My sweet basil has sticky substance on the leaves. And lo the good basil leaves shalt be placed upon a cloth laid down for them, while the evil basil shall be banished to the sink of rinsing, and from thence to the bin where it shall be forever cast down. our basil, however, appears to be turning brown, not drying to a nice green like your pictures show. Within 3 months i have these massive bushes.
