When to apply fertilizer?
The practice of automatically adding fertilizer in the spring is no longer considered a best practice. Excess fertilizing can cause excessive growth resulting in higher water needs, and might well contribute to softer growth which can make plants more open to insect infestations, etc. We now recommend holding off on fertilization unless we think there is an actual nutrient deficiency. Here is a link to an article from the University of California about Fertilizing and Watering
that provides more information about fertilizing plants.
Why are my citrus leaves yellow (winter)?
Yellow citrus leaves are fairly common in late winter, often after winter fruit production and before spring new growth. You will want to apply fertilizer before the tree begins to bloom again. The UC Integrated Pest Management website has cultural ...
According to the UC publication on Planting Landscape Trees: "The performance of a landscape tree depends a great deal on how it is planted. Survival after initial transplanting, rate of growth and establishment, root development, and many other ...
Tomato plants are beautifully green but don't produce fruit
There are several reasons that tomato fruit may fail to set: If the plants are producing flowers, they may not produce due to nighttime temperatures below 50º F or daytime temperatures over 90º F. Pollination failure or blossom drop may result. The ...
Blossom End Rot
Blossom end rot is a common tomato problem. According to the UC Pest Note for blossom end rot, affected tomatoes will "show small, light brown spots at the blossom end of immature fruit". Typically, the damage occurs when the plants are water ...