Why Are The Leaves On My Dianthus Turning Yellow. Jun 29 2020 Come spring its normal to see some yellow leaves. Leaves may be mottled have yellow spotting dead flecks line or ring spot patterns.
On the surface of the spots a brown to black dusty looking mold grows which represents the fungus sporulation. A host of different diseases can infect dianthus plants. Feb 21 2021 Plant leaves may also turn yellow if a plant is not receiving all of the nutrients it requires.
Dianthus dont like a lot of water and so while important to have a nice rich soil - it must drain well.
Underwatering of cilantro also causes chlorosis. Nutrient Deficiency A condition called Chlorosis is what causes your leaves to yellow. Potassium deficiency shows itself when leaf edges turn bright yellow but the inner leaf stays green. Poor drainage can also contribute to overwatering so always grow your cannabis in pots with drain holes.