The Gorilla Glue #4 strain is a balanced hybrid with slightly sativa-leaning effects. Also called Original Glue, it is a cross of Chocolate Diesel, Sour Dubb, and Chem’s Sister. This strain gets its name from its extremely sticky buds. Indeed, the resin level is so high that growers often complain that their scissors get stuck together when trimming!
This is a sign of extreme potency. Gorilla Glue #4’s THC content is estimated at up to 30%! The high provides a sense of euphoria while still enabling users to remain focused. Those who cultivate this strain find that it can produce up to 18 ounces per square meter planted indoors. Its flowering time is 8-9 weeks. Outdoors, you can expect to yield up to 21 ounces per plant. Harvest time is usually around mid-October.
In this guide, we provide eight tips on how to grow this extremely powerful cannabis strain.
1 – Avoid Hermaphrodite GG4 Plants
A breeder known as Josey Wales created the Gorilla Glue #4 strain. It has won several awards, including recognition at various Cannabis Cups in 2014. However, there is one slight issue: GG4 was created from a hermaphroditic plant. Male and female flowers grow in such plants.
Allowing male plants to grow in your cannabis garden is a recipe for disaster. Their pollen sacs will spread and ruin your crop. One of the keys to preventing ‘hermie’ plants is to ensure they don’t become stressed.
One of the keys to preventing ‘hermie’ plants is to ensure they don’t become stressed.
This means keeping pests and intruders at bay and ensuring your GG4 plants grow in the right conditions. We outline how to do all of this below. Pay special attention to your plants about four weeks into the growth cycle. From this point, you can begin to determine the gender of your plants.
Analyze the area between the nodes of your Gorilla Glue #4 plants. It is from there that pre-flowers appear. In female plants, you should spot bracts that produce stigma. In males, you will see pollen sacs, which are small round balls. If you see plants with sacs, remove them from your garden immediately.
2 – The Best Temperature & Humidity Measures
During the vegetative stage, the ideal room temperature for GG plants is approximately 80 degrees Fahrenheit. By the start of the flowering stage, you can lower it to around 75 degrees. Keep it to this level during the daytime. The temperature should drop by approximately 10 degrees Fahrenheit at night. Do not allow it to fall any further lest you stress the plants.
Regarding humidity, your Gorilla Glue #4 seedlings need a relative humidity (RH) level of approximately 60%. Begin decreasing it gradually throughout the vegetative stage. When your plants are ready to transition to the blooming phase, the RH should be no higher than 45%. You can continue to reduce it, so it is around 30-35% by harvest time.
It is worth investing in a humidity sensor to measure the RH in the air. You may also want to purchase a humidifier or dehumidifier to increase or decrease RH as necessary. If you find that the grow room temperature is too hot, purchase fans to help cool things down. There are special heaters available if you need to increase the temperature.
3 – Feeding Gorilla Glue #4
First and foremost, GG4 is a thirsty plant, so make sure you water your crop regularly. Check the soil before watering, however, to ensure you don’t overdo it. Regarding nutrients, Gorilla Glue #4 will thrive with moderate feeding. If you use high-quality organic soil, you can get away without adding much else. Provide a boost to the soil by including amendments such as compost tea, bat guano, and worm castings.
Keep the nitrogen level high during the vegetative stage. This process will ensure that your plants produce healthy foliage. It is also a good idea to add potassium while your crop is still vegging. Supplements such as Voodoo Juice may come in handy in the first couple of weeks.
Once your GG4 plants are in the blooming phase, you can reduce nitrogen intake slightly. Increase potassium and phosphorus feeding. Don’t neglect secondary nutrients such as magnesium, sulfur, and calcium. Adding them will help fatten the buds.
4 – How to Spot Nutrient Excess or Deficiencies
When adding nutrients, dilute them and begin with a relatively small amount. Check for nutrient excess or deficiency. In both cases, the symptoms can vary according to the nutrient. For instance, symptoms of nitrogen deficiency can include:
- Yellowing of mature leaves, particularly near the bottom of the plant
- Fewer bud sites with the plants flowering early
- Brown spots or discoloration on leaves
With phosphorus deficiency, signs might include:
- Purple leaf stems
- Copper, black, or purple spots on leaves
- The leaves could turn a dark bronze or metallic color
With potassium deficiency, symptoms include:
- Burnt leaf tips
- The leaves begin to curl up
- Brown spots
You don’t necessarily need to know every sign of nutrient excess or deficiency. However, if you see unusual spots, yellowing leaves, or curled up leaves, you may have a problem. The sooner you spot the issue, the better the chance of fixing it.
5 – How to Deal with Pests
Aside from monitoring possible nutrient issues, you also need to check your Gorilla Glue #4 plants for pests. One of the worst infestations you can have involves aphids. These pale insects usually hide beneath leaves and are often difficult to spot. Even more concerning is how quickly they reproduce. If left untreated, an aphid infestation can destroy your crop in an alarmingly short period.
GG4 is relatively resistant to pests. However, you should still check your plants with a magnifying glass regularly. If you see an infestation, it is tempting to purchase chemical pesticides. Rather than ruining your crop, try one of these natural remedies:
- A combination of four cups of water and five tablespoons of dish soap. This mixture does a great job of handling spider mites and aphids.
- Neem oil. This is a natural fungicide and insecticide. It fares well against mites, aphids, and other insects with soft bodies.
- Beer! Place some beer in a saucer. It attracts and kills slugs and snails.
- Garlic’s pungent smell keeps insects away.
- Pyrethrum spray. It is another natural insecticide. On this occasion, it comes from dried chrysanthemum flowers. Mix it with dish soap and water to deal with flying insects.
6 – Lighting
It is tempting to expose your Gorilla Glue #4 plants to intense light. After all, this helps them to grow. However, GG4 is a cannabis strain that doesn’t thrive in excessive light. If you’re cultivating your crop indoors, you’ll need to be selective when choosing a lighting setup.
HIDs, CFLs, and LEDs are the three most common grow light options.
HIDs, CFLs, and LEDs are the three most common grow light options. Here is a quick overview of each one:
HIDs have been a popular option for over 30 years and remain a good option for autoflowering plants. Most growers prefer to use Metal Halide lights during the vegetative stage and HPS lights for flowering. If you choose HIDs, look for bulbs between 400W and 600W. Also, make sure they are 30-50cm above the canopy of your crop.
CFLs operate in the cooler white spectrum and are an alternative to Metal Halide bulbs. Indeed, a 250W CFL can produce equivalent results to a 400W HID. You can place a CFL as little as 10cm away from your plants. It is best to use CFLs in the vegetative stage as it isn’t powerful enough for flowering.
LED lighting is a relatively new option. The setup cost is considerably higher than with other lights. However, they will save you money in the long run by trimming your energy bill. LEDs with just 350W can perform better than 600W HIDs. LEDs also provide a better light spectrum range than their rivals.
If you intend to grow a lot of cannabis plants, an LED system is worth consideration. For smaller growers, HIDs should prove more than adequate.
7 – Use Screen of Green (SCROG) for Higher Yields
Unless you’re an experienced marijuana grower, it is best to choose low-stress training (LST) techniques. These methods involve gently manipulating the branches of your plants to encourage faster growth.
The SCROG method is one of the most popular LST methods. If you leave your Gorilla Glue #4 plants alone, they will grow tall rather than wide. With SCROG, you push upper branches down while bringing up the lower ones. The process involves placing a screen above the soil (or whatever the growing medium is). Once the branches grow through the screen, you bend and weave them. The process of redirecting branches helps you create a flatter canopy.
Ideally, you will place your screen approximately 20cm above the bottom of your plants. Once the GG4 plants grow tall enough to be 5cm above the mesh, start tucking each branch beneath the screen. Point them towards the next square on the screen. You can continue to SCROG for the entire vegetative phase.
8 – Trimming Gorilla Glue #4
Once your GG4 plants are harvest-ready, it is time to cut them down and start trimming. GG4 presents a challenge due to the stickiness of the buds. Typically, growers prefer wet trimming, which involves removing sugar leaves straight away. However, the flowers remain sticky as they’re holding a lot of water. With GG4, this becomes even more of an issue.
Dry trimming is usually regarded as the most challenging option. However, it is worth considering this method with Gorilla Glue #4 because the buds are less sticky. Regardless of the option you choose, make sure you remove the larger fan leaves as soon as possible after harvest.
You also require at least two pairs of curved trimming scissors. The rounded blades of these devices fit neatly around the base of the buds. Don’t buy anything that doesn’t feel comfortable in your hands.
It doesn’t take long for your scissors to gunk up with Gorilla Glue #4. Cleaning involves rubbing them with a substance such as white vinegar or rubbing alcohol. If you opt for the vinegar, soak a clean cloth in it and rub the blades until they feel less sticky. For those using the alcohol, soak the scissors in the solution for a few minutes.
Final Thoughts on Growing Gorilla Glue #4
Hopefully, the tips above help you in your quest to grow GG4 plants at home. Realistically, your best option is to cultivate your crop indoors. Make sure your plants are not exposed to stress. Otherwise, they could produce pollen sacs, an event that could spell catastrophe for your marijuana garden.
Try to adhere to our guidelines regarding temperature, humidity, lighting, and feeding as closely as possible. Monitor your Gorilla Glue #4 plants regularly, and purchase an extra pair of scissors for trimming!