Most of these plants are naturally green, some with variegated leaves and, occasionally, other colors mixed with green. Surface crust forms on soil after each rain or watering, and cultivating it helps to revive stunted nasturtiums. The leaves are more or less circular with distinct veins. Remove and destroy any plants that show signs of the disease. Plant leaves can also turn yellow when the plant has been affected by a fungus infection or a virus. It seems to have worked, as my nasturtium leaves are much greener this year, although the older leaves still seem to turn yellow, but not as much as last year. Ask Question Asked 3 years, 6 months ago. I planted the seeds about 2 months ago and the plants are about 4-5 inches tall. Answer Save. What is wrong with my potted nasturtiums? Whiteflies typically form colonies on the bottoms of leaves where they suck sap, causing the leaves to turn yellow. But every year my potted ones do the same thing. It seems to have worked, as my nasturtium leaves are much greener this year, although the older leaves still seem to turn yellow, but not as much as last year. Flowers may be deformed, streaked or faded. Plant foliage turns yellow due to a variety of reasons including improper cultural control, insect infestation, disease and improper growing conditions. planted in the ground are perfectly healthy and growing like weeds. get lots of yellow leaves. This year, I did the fish fertilizer routine as soon as I planted, then continued every two weeks. Because of the closed environment in container plants, the conditions must be carefully controlled. Reduce fertilizer application to a minimum and leach the soil around the plant to dissolve unnecessary solubles. Are some or all of your cannabis leaves turning yellow? Nasturtiums thrive when they're in direct sunlight for at least half a day with a combination of hot or warm days and cool nights. They're in containers in a south facing window. But now some of the leaves are turning yellow and getting papery. So I put into another room which gets less light. The leaves turn yellow … It can be transmitted by aphids and leafhoppers. My anthurium's leaves are turning yellow and brown. Maybe your leaves also have other symptoms like spots, curling, wilting, brown patches, etc. Just like people, plants are known to feel under the weather now and then. Is this just the cycle of life? Pin. Nasturtium is an annual plant that belongs to the Tropaeolaceae family. When nasturtiums are stressed, they're also more likely to be attacked by aphids. Reasons your Anthurium leaves are turning yellow include over watering, low humidity, excess sunlight, temperature stress, poor soil quality and insufficient fertilizer. The plants leaves started to get brown tips. Read on for all you need to know about using nasturtium companion plants. The leaves are the way the plant gets its food to grow so don’t cut the leaves too early. The leaves are turning yellow and dieing. This article will help. Plant leaves may also turn yellow if a plant is not receiving all of the nutrients it requires. But there is so much more to this colourful plant,using nasturtiums as companion plants bring many benefits.