Gender Determination

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If you grow cannabis plants for smoking, you need female plants. Male plants produce much less THC than female plants and worse, they create pollen which will pollinate your female plants which will stop the THC production immediately. It is therefore important to determine the gender of your plants at an early stage. This pictures will help you with that.

cannabis gender 1a

cannabis gender 1b

cannabis gender 1c

Weekly Marijuana Grow Room Maintenance

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Weekly maintenance in your grow room can be one of the easiest ways to spot pests, find equipment failures and prevent losing an entire crop of medical marijuana to a simple error.

The best thing you can do is make yourself a check-list, and go over it on a certain day every week, or even twice a week. The important part is you make a list and stick to it.

Things to keep an eye out for:

  • Wiring
  • Fans / Airflow
  • Pests on plants, soil or walls and floor
  • Unhealthy leaves
  • Plants needing pruning
  • Water level / Moisture level of soil
  • Canopy level

When doing a weekly checklist, it is also a good time to go ahead and do some cleaning. Marijuana plants will thrive the best when given proper attention, in a clean, controlled area. As a marijuana grower you will be picking soil, dirt, debris and leaves off the floor on a regular basis. If you make it a habit to clean up any mess you see, every time you enter your grow room, you will make life easier on yourself. Remember – pests don’t like clean areas! If you want to keep pests away, clean your indoor garden area on a regular basis and keep it clean.

Check your fans.

When checking the fans, you want to clean the fan blades of any debris that may have collected. Most fans used in indoor gardening, will work exactly like your home fan and just like the fan you use in your living room, the indoor garden fan will pick up dust and debris that will stick to the blades.

Cleaning the fan blades and motor of any debris will ensure that air is flowing at it’s best at all times.

This is also a good time to look at the wiring of the fan to make sure everything is in order and there are no loose wires.

Loose, or frayed wires can be a fire hazard to your indoor marijuana garden and your home/greenhouse.

Check ALL wiring on a REGULAR basis!

Make sure all wires are off the ground, or away from any water source, or places that might possibly get wet.

Look for PESTS!

Keeping a careful eye out for pests can keep you from losing your marijuana crop. If you are always looking for pests, you will surely spot them before someone who is never looking. Spotting any signs of pests early can mean the difference between winning the pest war, and losing your crop – it’s just that simple!

If you wait until you see spider mites jumping all over, and webs are completely covering your buds, well you are likely not going to have a harvest anytime soon.

If, on the other hand, you are checking your plants and clones carefully every time you are in the room, you will likely spot the early signs of an infestation and knock the mites out in a hurry, before they destroy your crop.

Unhealthy leaves can lead to other problems, that may lead to bigger problems, that may lead to you losing your crop of marijuana. Anytime you see unhealthy leaves on a plant, you should inspect them and see what is wrong with them. If the leaves are simply turning yellow and falling off, but you have no other signs of trouble great.

If you see leaves that are turning black,spotted,curled-up and upside-down, then you may have serious problems on your hands. The point is, pay attention to what is going on. Many times the plant will tell you whats wrong – if you just pay attention to the signs.

Plants that are growing too tall and need pruning, not only start to look bad after awhile, but they can also pose a fire hazard!

Marijuana plants grown indoors are known to grow like WEEDS – literally, they have growth spurts and may grow a couple inches in height overnight. This could mean your plants may grow up into your lights without you noticing, not only burning your precious plant, but possibly starting a fire at the same time.

Always watch out for plants that are growing up near lights, fans, electrical plugs, or anywhere else they may pose a problem.

If you don’t have a ton of time to devote to your garden, well first you shouldn’t be growing marijuana. Secondly – you should set your maintenance day up around your work schedule so you can perform your weekly maintenance on your day off. This way you can devote a couple good hours to going over all the details.

If you would like more great indoor marijuana cultivation tips, then do yourself a favor and go get the best marijuana horticulture/cultivation book around. This is my all time FAVORITE medical marijuana grow book!

Tips for Cloning a Marijuana Plant

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Cloning a marijuana plant is an easy method of propagating a new plant, from an existing mother plant.

When you “clone” a marijuana plant, you are basically just taking a clipping and placing it in the proper conditions for it to form roots. After rooting, which usually takes 1.5-3 weeks, the rooted “clone” is ready to begin vegetative growth and is now a plant itself. At the very beginning of the vegetative stage for a cloned marijuana plant, it is essentially the same as a young seedling, with a few exceptions.

A seedling, or plant grown from seed, has a taproot that is basically a central root that grows in a downward position and is very strong and helps to hold the young seedling in place by holding onto the soil or other growing medium.

A clone does not have a taproot but instead has many, many smaller roots that grow from the sides of the stem in an outward direction. This can sometimes lead to a clone being “loose” in the growing medium.

Adding rocks or hydroponic rocks to your growing medium will give your young clones roots something extra to hold onto, making your young marijuana clone stronger and less likely to be uprooted.

Growing Marijuana – How to Develop More Female Plants

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female plants

The greatest advantage associated with cannabis is it’s 100 % natural healing and medicinal powers.

So, from my perspective, it is obvious that gardeners should definitely use organic soil as the growing medium. Why would you take something purely organic and ruin it with chemicals? It simply makes no sense.

Is it a little more profitable to use hydro as an alternative to soil?

No, it’s not.  You have to focus on the big picture. Besides the high cost of chemical-based nutrients for hydroponic marijuana cultivation, using (smoking, vaping, cooking with) the harvest from chemically produced plants puts those chemicals in your body, and will increase your medical bills in the future. So, if it takes an extra week to finish your marijuana buds in a soil medium, the added electricity expense for that extra few days will be less than your medical bills and overall health in the future. Far more important than prospective medical bills, is the way in which you feel every day existing chemically f-r-e-e, with much more energy, increased productivity and just the all around experience of being healthy. That in itself is invaluable.

Therefore, if it costs you an extra $5-10 per harvest in the short run, it’s resources smartly invested. Besides, medical Marijuana patients, and customers too, will be demanding pure organic marijuana, and providers will be required to transition to meet demand. It is elementary economics.

With that said, lets move on to what you are really interested in — the way to get considerably more females to develop from your 10 pack of marijuana seeds you paid good money for.

What you need to know about cultivating marijuana is that the overall experience of the grower has a lot to do with the male to female ratio when growing from seed. You can give 5 various gardeners the same 10 seeds, and they will all have totally different results. Some growers will have no females while others can have 50% or more. The sex is not exactly predetermined before the grower gets the seeds. It’s all about a knowing few advanced tips and most crucial, reducing stress on the marijuana plants, specifically right before the calyxes begin to form.

Look at controlling stress levels when germinating and growing marijuana – Just like you’d watch your loved one’s blood sugar levels if they are diabetic. The less a diabetic’s sugar levels fluctuate, the less stress they will experience.

So it goes with cultivating marijuana.

If you over-water or allow your plants’ soil to completely dry out, it WILL cause stress, just the same as when a diabetic eats foods with too much sugar or injects too much insulin – their sugar levels will fluctuate causing stress and illness.

To grow stress-free marijuana and get a higher female to male plant ratio, make sure that:

1. Soil moisture levels to not become over watered or dried out.
2. You keep the nutrients feeding regulated, not spiking or depleting the amounts of nutrients throughout each day. An equal ratio N,K and P will have reasonable results obtaining female plants.
3. Room temperature will not fluctuate excessively
4. Room humidity levels don’t fluctuate too much
5. Never use 24 hours of light for vegetation, 18 on / 6 off is suitable, but not optimal for growing more females. Read below for more advanced techniques.
6. Keep the plants’ light cycles precise, and never permit light pollution (not even for a second) to get in touch with your plants during its dark cycle.

If you maintain all of the above recommendations, you should have 60-70% females. If you want to achieve 70-100% female plants from seeds, read the following advanced tips:

Use more Nitrogen; you get more females when you have a bit more Nitrogen and less Potassium. If your Potassium levels are higher, you will get more male plants. A tad bit more Nitrogen is more beneficial for the vegetation cycle anyway.

Ensure your humidity levels are high right from seed with a humidity dome. If humidity levels are low, you are certain to get more males. Also keep your soil from drying, this will result in more males.

Environment does have a little to do with the strain background. Unless you’re growing a tropical strain, such as a Sativa from Thailand that loves the temperature up around 85 degrees, always try to keep the temperature lower. High heat creates stress on the majority of the marijuana strains, and it results in more males. Keep your room temperature as close to 70 degrees Fahrenheit as possible, and make sure it does not decrease by more than 5 degrees when the lights are out, or you will create more males.

Keeping the relative humidity of the room at 70% is the best for females to form. Humidity over 80 and under 60 will result in more males.

Do not top your plants or take clones before sex is shown. This can contribute stress and develop more males.

Utilize a Metal Halide (MH) during vegetation and a High Pressure Sodium Bulb (HPS) for flowering. This will create more females.

Before you change the light cycle from vegetation to flowering, be sure your plants are stress free. If you recently over fertilized, or treated the soil for mold or plant for pests, wait a few days for the plants to overcome any stress, then go into the flowering cycle, even if it throws your schedule off by a few days, it is usually well worth it as you may get 20% more females purely by waiting the extra 3 days for them to recover from the stress.

You’ll find it also ideal to vegetate under 14.5 hours of light for optimum female ratios. If this cannot be practiced, then use 16. And if you’re still in too much of a hurry, use 18, but never 24 hours of light or you will have too many males.

You get a lot more females using 14.5 hour of light during the vegetative cycle, slightly less using 16, slightly less at 18, but your chances dramatically decrease if you use 24 hours of light. You could end up with 70% male up, or even up to 100% male plants. You could actually get NO FEMALES AT ALL. It’s not worth the risk, especially if you happen to be cultivating higher end strains.