yellow leafs - Knowledgebase Question

Dammeron Valley, Ut
Question by waterld
June 30, 2010
I have 2 roses planted in clay pots the leafs are going yellow our tems have been between 95 and 105 and all our plants are needing water everyday. They have blooms . no bugs. used spray for roses and are getting food. Most plants with yellow leafes are from to much water are roses the same way? They also get full sun


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Answer from NGA
June 30, 2010

0

Yellow leaves can be caused by many things including lack of nitrogen, insufficient light, water-logged soil (plant roots need oxygen to thrive), dry soil, or iron deficiency. If the older bottom leaves are yellow, but new growth is green, it's usually a lack of nitrogen. If new leaves are yellow, with green veins, it's usually a lack of iron. Soil should be kept moderately moist (but not wet). Finally, transplant shock can contribute to yellowing, so if new growth shows up as green, that might be the problem. Also, extreme summer temperatures can stress plants because the soil in pots heats up much higher than surrounding temperatures. It might be helpful to move the containers to a spot in morning sun with protection from hot afternoon sun. If not possible, shade the exterior of the pot, or set it inside a larger pot. Finally, daily watering will leach nutrients out of the soil quickly. Although it sounds like you fertilized, the nutrients may not have "caught up" with the rose's need yet. Try to isolate each of these possibilities one at a time to determine the problem. Good luck!

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