Q.Problem growing grapefruit tree in Zone 9
I live in the desert area of twenty-nine Palms Calif. (zone 9) and my small grapefruit tree is not growing. The leaves are brownish yellow and just not doing anything that shows it is healthy. Please help. . . what do I need to do to have a healthy tree? Thank you for your valuable time I appreciate it.
Certified GKH Gardening Expert
I would have your soil tested. Yellowing of the leaves is typically either an iron or nitrogen deficiency. When was the last time you fertilized the tree? It may need nutrients. If you have not been fertilizing, start doing so and, regardless, have the soil tested to see if you have any nutrient deficiencies that need to be corrected. Here is more information on fertilizing citrus trees: https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm
In addition, it could be a watering issue, possibly not enough. Citrus plants require lots of water. This article should help: https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm
This article will have some other reasons for yellowing leaves: https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm