I have seen a lot of talk lately about which leaves to remove, when to remove them, how to remove them, when NOT to remove them, etc. SO, I decided to do some in front of your eyes work again tonight, and this time the topic is leaves.
Plants use a process called photosynthesis in order to change sunlight into food.
This process takes place mostly in the leaves of a plant. Leaves are large and flattened so that a large area of chlorophyll is exposed to the sunlight.
Leaves are also used in a process called transpiration, which helps draw water and dissolved minerals up the plant's stem from the roots, where these substances have been absorbed from the soil.
During transpiration, water evaporates through tiny holes in the leaves. More water is drawn up through a thin tube extending down the plant's stem.
Knowing these two facts is crucial to us growers. Take a look at one of your plants, see the leaves. Think of these leaves as solar panels on a house. Now take a look at your fan leaves in particular. That's a much larger solar panel huh?! Wouldn't want that to stop working or your computer might go out. But, what if other smaller solar panels, more of them, where being blocked by a larger solar panel (fan leaf), then what? This is how you need to approach your plants.
If you are in vegetative cycle then you should do everything possible to keep fan leaves right where they are, on the plant. However, if your solar system was an "intelligent" solar system and it knew to draw more power from panels getting more sun rather than the ones shaded, it would do so only when needed. The surface area of a large fan leaf is usually equal to the surface area of about three regular sized leaves, depending on strain and growing technique. SO, is it in your best interest to cut them off?
Not really. However if the plant itself should decide to let that leaf slump off then assist it. This is the part you should read twice, "assist it, do NOT FORCE it"
What I mean here is when you see a leaf turning yellow, gently pinch the end of the leaf in your fingertips. With a gentle pulling of ONLY your fingers give it a little tug, DO NOT USE YOUR WRIST! if the leaf does NOT come off with only the slightest pull, it doesn't want to.
Either the plant is trying to heal itself and has decided that leaf is worth keeping or it isn't ready to come off yet. Either way at this point it is NOT your decision. What is your decision is necrotic tissue. Al leaf that has turn a very pale grayish green and all gnarled up into a ball kinda, that needs to go. More than likely it was trapped somehow in its current position and the plant could not expel the leaf from the stem. This happens in nature with something called "wind", it blows and the plant takes advantage of this fact and cuts the supply of "juices" to the leaf so the wind may remove it,natures pruning so to speak.
Now back to those fan leaves real quick. if you had two solar panels. Panel A is 4ft by 4ft, and panel B is 2ft by 2ft. Which one would produce more solar power?? The bigger one, no doubt. But, what if the bigger one was partially shaded and placed at the bottom of a well while the other was at the top of the well?? Hmmmm...
A fan leaf can be forcefully removed, I would ONLY do it one at a time though if I were you. Pulling to many of your large solar panels out of the equation simply is not a great idea if you want your house to be CONSISTENT!!! I say it like that because thats where it will be effected the most. If your light is solar powered and a big cloud covers the sun for the day, your light will dim. When the cloud moves your light will brighten. Now apply it to your plants. Remove a big fan leaf and your plant is going to dim, to bad you cant put ir back now that its off though. Well naturally you cannot. There is one foliar feed that I personally use that will help the plant through this stage but we'll save that for the end of the discussion.
Now let's take a moment of silence, for this small chronic break, and the passing of any leaves before their time.
