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Avatar for Alexander2627
Nov 10, 2023 9:57 AM CST
Thread OP
Warrington, Uk
Hey my Ginseng Bonsai is struggling again at the moment.

Earlier this year it lost all its leaves and eventually they grew back although I don't know why.

It currently has no leaves and the green is fading, there are also small black flies breeding in the pot
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Nov 10, 2023 4:01 PM CST
Name: Al F.
5b-6a mid-MI
Knowledge counters trepidation.
Japanese Maples Deer Tropicals Seed Starter Overwinters Tender Plants Indoors Region: Michigan
Houseplants Foliage Fan Dog Lover Container Gardener Birds Wild Plant Hunter
For those who might wonder, Alexander mentioned in a previous post re his tree that the pot does have drain holes.

@Alexander2627 We talked back in March, but it appears you haven't made any significant adjustments to your care regimen.

FWIW - Our job as growers is to identify stress factors and limiting cultural conditions, then adjust so the plant is not forced to deal with cultural conditions it's not programmed to tolerate, which causes stress and systemic/process imbalances. That requires proactivity as opposed to hoping the plant will cure itself.

When did you last fertilized? When did you last flush the soil thoroughly?

Al
* Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for. ~ Socrates
* Change might not always bring growth, but there is no growth without change.
* Mother Nature always sides with the hidden flaw.
Avatar for Alexander2627
Nov 11, 2023 9:48 AM CST
Thread OP
Warrington, Uk
Hi Al,
Thankyou for your previous messages. I made no changes last time as the shortly after I posted, the plant began to flourish. I did flush the soil last time before the leaves grew back so that might have helped.

When I flushed I gave the plant new soil but I didn't fertilize it.

I apologize if any of my vocabulary is wrong by the way, I am quite inexperienced with plants.

Thanks,
Alex
Avatar for Alexander2627
Nov 11, 2023 10:04 AM CST
Thread OP
Warrington, Uk
Also, I failed to mention I moved recently and there is significantly less sunlight here. I keep it in as much sunlight as possible but I worry it's not enough.
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Nov 11, 2023 11:04 PM CST
Name: Al F.
5b-6a mid-MI
Knowledge counters trepidation.
Japanese Maples Deer Tropicals Seed Starter Overwinters Tender Plants Indoors Region: Michigan
Houseplants Foliage Fan Dog Lover Container Gardener Birds Wild Plant Hunter
Don't worry about your vocabulary - we can figure out what you're saying.
* Remove the plant from the cache pot.
* Flush the soil thoroughly by pouring a volume of water equal to about 10x the volume of the pot through the soil.
* After you've flushed the soil and the pot has stopped draining, tip the pot to a 45* angle and a allow it to continue to drain. Compare B to A below to see the effect tipping the pot has on water retention.
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* Only after it has stopped draining should you return the plant's pot to the cache pot (if you wish). No water should collect in the cache pot unless you have the pot up on a block so water in the cache pot has no pathway by which the effluent can make way back into the plant's pot. One way of preventing effluent from getting back into the soil:
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* Wait a couple of days, then fertilize. I suggest you use Foliage-Pro 9-3-6 at the production rate according to directions. You won't likely find a better choice.
* When these exercises have been completed, use a "tell" to "tell" you when it's time to water. More on that below.
* Whenever you water, water copiously, making sure the entire soil column is saturated and at least 20% of the total volume of water applied exits the drain hole. No need to be precise about the volumes, an approximation is fine.
* During winter, fertilize at production rates every 4th or 5th time you water, and every 3rd or 4th time in winter. Fertilizing according to the number of times you've watered makes much better sense than allowing yourself to be guided by the calendar.
* To keep track of when it's time to fertilize, drop a marble or other object into the pot each time you water. When you're about to drop the 3rd, 4th, or 5th object in the pot fertigate (fertilize + irrigate) and pick up all the marbles.
* Follow the instructions below re how to make and use a 'tell'. It is much more precise than a water meter or a finger.
* Invest in a 150W equivalent LED bulb and brood light fixture and power it on 16hr off 8hr.
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* If it seems reasonable, try to keep humidity levels between 50-60%.

Using a 'tell'
Over-watering saps vitality and is one of the most common plant assassins, so learning to avoid it is worth the small effort. Plants make and store their own energy source – photosynthate - (sugar/glucose). Functioning roots need energy to drive their metabolic processes, and in order to get it, they use oxygen to burn (oxidize) their food. From this, we can see that terrestrial plants need plenty of air (oxygen) in the soil to drive root function. Many off-the-shelf soils hold too much water and not enough air to support the kind of root health most growers would like to see; and, a healthy root system is a prerequisite to a healthy plant.

Watering in small sips in order to avoid over-watering leads to a residual build-up of dissolved solids (salts) in the soil from tapwater and fertilizer solutions - which limits a plant's ability to absorb water – so watering in sips simply moves us to the other horn of a dilemma and creates another problem that requires resolution. Better, would be to simply adopt a soil that drains well enough to allow watering to beyond the saturation point, so we're flushing the soil of accumulating dissolved solids whenever we water; this, w/o the plant being forced to pay a tax in the form of reduced vitality, due to prolong periods of soil saturation. Sometimes, though, that's not a course we can immediately steer, which makes controlling how often we water a very important factor.

In many cases, we can judge whether or not a planting needs watering by hefting the pot. This is especially true if the pot is made from light material, like plastic, but doesn't work (as) well when the pot is made from heavier material, like clay, or when the size/weight of the pot precludes grabbing it with one hand to judge its weight and gauge the need for water.

Fingers stuck an inch or two into the soil work ok for shallow pots, but not for deep pots. Deep pots might have 3 or more inches of soil that feels totally dry, while the lower several inches of the soil is 100% saturated. Obviously, the lack of oxygen in the root zone situation can wreak havoc with root health and cause the loss of a very notable measure of your plant's potential. Inexpensive watering meters don't even measure moisture levels, they measure electrical conductivity. Clean the tip and insert it into a cup of distilled water and witness the fact it reads 'DRY'.

One of the most reliable methods of checking a planting's need for water is using a 'tell' (more reliable than a 'moisture meter'. You can use a bamboo skewer in a pinch, but a wooden dowel rod of about 5/16" (75-85mm) works better. They usually come 48" (120cm) long and can usually be cut in half or in several pieces, depending on how deep your pots are. Sharpen both ends of each tell in a pencil sharpener and slightly blunt the tip so it's about the diameter of the head on a straight pin. Push the wooden tell deep into the soil. Don't worry, it won't harm the root system. If the plant is quite root-bound, you might need to try several places until you find one where you can push it all the way to the pot's bottom. Leave it a few seconds, then withdraw it and inspect the tip for moisture. For most plantings, withhold water until the tell's tip comes out nearly dry. If you see signs of wilting, adjust the interval between waterings so drought stress isn't a recurring issue.

Al
* Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for. ~ Socrates
* Change might not always bring growth, but there is no growth without change.
* Mother Nature always sides with the hidden flaw.
Avatar for CPPgardener
Nov 12, 2023 12:57 PM CST
Name: John
Pomona/Riverside CA (Zone 9a)
More light, lots more light.
“That which is, is.That which happens, happens.” Douglas Adams
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