FIMming is a high-stress training (HST) method used by cannabis growers to maximize their final yield and is the act of pinching or cutting a young plant during its vegetative cycle to create more colas. To begin with, you’ll need a plant mature enough to handle the process and a pair of sharp pruning scissors/a sterile blade. To prevent any potential contamination at the cut, remove any loose stalks beforehand. It is advised to FIM when the plant is still young, with 3-5 nodes in total. You should aim for a clean cut at the top of the plant where there any new growths, avoiding cutting between nodes (compared to topping, in which you’d cut the top off the plant between nodes).
Many cannabis growers choose to FIM their plants because it all but guarantees them a larger yield. This is because FIMming allows the plant to produce four colas at once, in comparison to topping which produces only two. FIMming also does not cause the plant as much stress as topping and allows for a quicker recovery. This is highly beneficial, as FIMming can be performed multiple times, allowing for huge harvest potential. Another benefit is that it enables growers to control the canopy of their plants, keeping it balanced for optimal growth.
- Don’t conduct this technique too early. Topping or FIMming a plant too soon means it can have a difficult time recovering. This is a common mistake growers make when first learning, and it often holds people back from getting the most from this technique. As a rule of thumb, wait until 4-6 nodes are shown when topping and 3-5 when FIMming.
- If your plant is growing new leaves every day, it’s ready to top or FIM. As a result of rapid growth, its recovery time will be noticeably faster.
- Don’t top or FIM in the flowering stage. Any technique that involves the cutting or pinching of your plant should be done during the vegetative stage, long before any signs of flowering.
- Make sure to use clean and suitable equipment, as contamination is the last thing any grower wants.
FIMming is a technique used by cannabis growers to dramatically increase the yield of their plant while also making the plant more manageable. It’s usually done by growers with limited space. As no two FIMs are the same, it’s important not to expect the same result every single time. Commonly referred to as ‘FIM’, the act of cutting a young cannabis plant in a certain way is historically known as an acronym for “F**k! I missed”. The key difference between topping and FIMming is the location at which the cannabis plant is cut. With FIMming, you remove any new growth while avoiding any cuts between the nodes, whereas with topping, you cut off the top of the plant altogether.
Topping a cannabis plant is a high-stress training (HST) method that really flourishes when the plant is developed enough to face extreme changes like losing part of itself! To get going, you’ll need a plant mature enough for the process and a pair of pruning scissors/a sterile blade. To minimize risk of contamination at the cut, remove any loose bits of stalk and ensure your tool of choice is as sharp as possible, as you should aim for one clean cut. For the first time topping a plant, a grower’s rule of thumb is to cut the plant above the third node. This is done to ensure your plant can handle the stress, in addition to having enough branches at the bottom for the plant to bush out correctly.
There are many factors to consider when choosing which HST techniques to use. As both have their pros and cons, it’s for you to decide what will best suit your needs. For example, FIMming is better suited for indoor or micro-growers with limited space, as it allows them to maximize their plant yield. Conversely, topping is preferred by outdoor and large commercial growers, as they will usually top a plant multiple times to produce a strong, bushy weed that will require less support than those that have been FIMmed.
Topping vs. FIMming cannabis plants – the age-old debate. Both are high-stress training methods that can drastically improve the quality and quantity of your harvest. By sacrificing a part of the plant early in its life, one can get a greater number of tops and therefore more colas – but how does this work? Which is the better method for training your plants? Read on to learn about the pros and cons of each method and their suitability for various growers.
Topping is a technique used by cannabis growers during the vegetative cycle, during which time you cut off the top part of a plant to stop vertical growth in order to instead promote lateral growth toward the bottom branches of a plant. It may sound absurd to cut off and dispose of part of your cannabis plant, yet this is an essential step to ensure your plants are healthy and provide a quality yield. Think of it as a short-term loss for a long-term gain – and it truly is a gain. After topping, growth hormones are evenly distributed toward the lower end of the plant, allowing these smaller side branches to grow out and form large, dense buds.
Topping and FIMming both entail the removal of some growth at the top of a young cannabis plant, and both result in the development of extra colas. Here are some tips for topping and FIMming that will make your growing experience even more successful.
Fimming vs. topping – the age-old debate. Both methods can help you grow a larger yield, but they work in completely different ways. Here’s what you need to know about the difference between these two techniques and which one is right for you.
Grab the tip of your plant and gently elongate the growth with one hand. Use a pair of clean scissors to snip about 75% of the top. You’ll be left with a small turf of growth that will eventually give life to four colas.
Wait until your plant has developed 3–5 nodes before you FIM it. Like with topping, performing the procedure too early will shock the plant and slow down the growth of your seedling. You should only FIM plants during the vegetative phase to allow plants to focus all of their energy on bud production during the flowering stage. If you want to train your plant during this time, try gentle techniques such as low-stress training (LST).
Use the sharpest blades you can get your hands on. Office and kitchen scissors work, but they’re not as efficient as tools specifically designed for the job, so consider using pruning scissors. Razor blades are also a good option.
Topping is the process of pruning the growing tip of the main stem of a cannabis plant. This is perhaps the most common HST or high stress training technique applied by both indoor and outdoor growers. Marijuana growing naturally will typically take on a Christmas tree structure; One dominant, main central cola and multiple sets of side branches. All plant parts receiving a share of sunlight at some stage during the day as the sun traverses the sky.
Topping cannabis requires accuracy, precision, and cleanliness. Snipping your plant with a blunt tool can cause the stem to break and it can leave a much larger wound than intended.
To top a plant, make a clean cut to the tip of the main stem using sterile scissors and fully remove the top growth. Be sure to leave about 5cm of space between where you cut and the lateral branches. This will give you slight room for error and help you avoid accidentally severing these important structures.
In contrast, indoor cannabis plants receive illumination from a stationary grow lamp positioned above. This makes naturally-shaped cannabis plants inefficient to crop indoors, unless you cultivate in large numbers using the SOG or Sea of Green method. Topping is the method of choice for pro growers to increase yields. It is also favoured by home growers that want to fill out their grow space with a handful of plants, rather than pack in as many as possible.
Plants can’t handle topping during the seedling stage. If you try topping during this time, you risk killing or stunting your seedlings. Similarly, topping during the flowering phase is sure to cause damage to your precious plants.
Secondary shoots are juiced with the growth hormone that previously would have been used to develop the main stem. However, most growers report that fimming is slightly less effective at reducing stretching than topping. A fimmed cannabis plant can still grow rather tall, albeit with far more top colas.
Push your marijuana into maximum overdrive with high yield pruning methods. This one is all about Topping and Fimming cannabis plants.