Vegas, organic gardening is certainly not a crock and luckily, many hundreds of thousands of growers are willing to go the extra mile to produce organic fruits and vegetables. You should know, though, that you will have to study up on the nutritional requirements of citrus in general...and figure out how to provide them,organically, within the confines of a container. You are going to have to provide everything that your plant needs; citrus have some specific micro-nutrient requirements. I see nothing in the Jobe's product that disturbs me too much, though it does not have micro-nutrients, also called miner elements. Fish emulsion could assist in providing some key elements, when used in conjunction with your Jobe's. HOWEVER! It really isn't intended for container culture. There are no directions that I see on the label as to dose and frequency. Another aspect that is troublesome is that I can see how repeated use of this product would muddy up your potting mix....fill the so important pore spaces with fine particles. If you were looking for a product with a high Nitrogen analysis, you'll have to go with something other than your 'organic' products. Lots of container hobbyists resort to the commercial soluble fertilizers, while still using using organic methods for the rest of the plant care. I'm not saying that you should, but just be aware that you will have to keep up with the fert. in order to provide your citrus with what it needs. Another factor in the yellowing 'may' be the potting medium. Again, container culture is entirely different that growing in situ. Garden soil or compost added to a perfect good potting medium can result in a mucky, slow-to-drain mixture. Roots can function in that kind of environment, which is why we have learned to provide a potting mix that remains coarse textured and porous. I may not be the only one that would love to see you re-pot your plant entirely. I'd also like to warn you that moisture meters are notoriously inaccurate. Most of us have learned to rely on the most sophisticated digital equipment we have....our fingers. ;-)

Congratulations, that's a beautiful tree! :) The second to the last picture (where you're showing the new growth) looks almost like scarring from citrus leaf miners. Look up pictures of CLM and see if it matches anything you see on the tree. Could be old, too, in which case, I wouldn't worry about it. New growth tends to be lighter in color but it looks almost like magnesium deficiency due to the christmas tree pattern. If you do decide to add magnesium, also consider adding calcium as they come as a pair and too much of one prevents the tree from using the other one. Try to get a good fertilizer with magnesium and calcium in addition to a good NPK ratio. I believe that everyone likes Dyna Gro here. The speckling on your leaves could also have come from spider mites. They look like tiny dark or red pinpoints that move. See anything like that on your tree? I'm still in the process of trying 511 myself but I've heard nothing but good things about it. It almost doesn't matter how damp or wet the soil is right after you water it. What matters the most is how fast the soil dries out. Its okay to be damp right after watering. If you use a water probe, wait until its just below 50% (debatable for all the experts out there, and I'm no expert) before watering. You should have to wait no longer than a week for your soil to need another thorough watering (in my opinion). I have no guesses as to what the tiny white bugs in your soil are but I googled springtail and the pictures that came up are simply horrifying. Good luck!

Josh: Do you know any other method to check the soil dampness? (I can't use the "finger test" method because the soil is so hard and full with roots so it's impossible to stick my finger down there). Johnmerr: Thank you for the suggestion! I will give it a try. There is another thing. There is a instruction tag came with the tree that says I should only repot it after 2 years. However the soil doesn't seem to have good drainage to me (when i water it, the water doesn't go right down but stay on the surface of the soil for a few minutes, I then have to wait until it's absorbed by the soil then repeat again until I see some water running down the drainage hole at the bottom). Is it normal so? Or should I repot it and replace it with better soil?

Hi all. I take care of a university biology department's collection of plants here in Connecticut and have grown citrus at home for over forty years. My take on the above issues follows. First, my Meyer lemons that get a good dose of cold before I move them inside (this year around Halloween) often drop many of their leaves and then soon break out into the same kind of flowering cycle seen on the second plant. They are more prone to dropping most of their leaves in November than any of the other citrus I care for. Next, when the tip of a branch begins to die back as in the photo, you should use a sharp pair of secateurs (sterilized in bleach solution) and prune it back to green wood just above a leaf node ASAP. Leaving the dying tip is only causing more tissue to die. Next, I think both the plant that shed all its leaves in a week and the one that consists of just a single stem are in pots that are much too large for them, especially given that they are in regular potting soil and seem to be in cool home environments without a great deal of sunlight. The single-stemmed plant would probably be quite happy in a five inch diameter pot. Over-potting makes the cooler conditions the plants encounter in the fall and indoors more likely to cause root rot which can kill a citrus tree quite quickly (I've done it to a couple of my own trees: they drowned). The test I'd do is to get them out of their pots and see if there are a decent number of roots spreading through most of the soil. If a plant that has been in a container for several months is lifted from the pot and when this is done large gobs of soil simply fall away, that's a good reason to put the plant into a smaller container. There's no good rule for this, but I'll note that most of my older citrus (15 to 30 years old) are in containers that are about 1/3 as high and 1/3 as wide as the plants. A typical example: I have a Key lime in an 11 inch wide and 10 inch tall pot (with soil to within three inches of the top and an inch of bark chips on top of that). The Key Lime has a 1 inch diameter trunk at the base and is roughly 2.5 feet wide and 2.5 feet tall. Soil considerations. At home, I long used regular brands of potting soil picked up at Home Depot (non-moisture control) with success for decades but then had a bad experience when I used a more expensive brand from a garden center that had too much ability to hold water--the bottom of two pots turned to mud. In the aftermath of that experience, I researched my options. For what it is worth, I've adopted the following mix at the greenhouse: 1/2 Al's Gritty Mix plus 1/2 ProMix BX. Al's Gritty Mix consists of three ingredients 1/3 Turface (the stuff used on baseball infields), 1/3 Grani-grit (rough granite chips for chickens to grind their food in their gizzards), and 1/3 fine bark mulch. I do not sift or sieve any of these things but simply pull out any overly large bits of wood from the bark mulch or mix if I see them. I found that Al's mix alone drained and dried out far too quickly in the greenhouse. You can obviously vary the amounts or omit one of the Al's ingredients and still have a much better mix than what you'll buy at Home Depot. A cactus might get 1/3 ProMix BX and 2/3s Al's, etc. I use the 1/2 and 1/2 mix for most succulents and cacti, including Desert Roses. Oh, and I've found that covering the soil surface with larger bark chips is a great way to reduce the fungus gnat population, but that problem is also helped by shifting to a mix that has less peat in it or by NOT repotting your plants just prior to bringing them in for the winter (the fungus gnats are particularly attracted to new potting soil with its fresh peat).