A Spanish term meaning “seedless,” sinsemilla is cannabis grown without seeds. Learn more about sinsemilla from Leafly. Learn best techniques and preparation required for cloning marijuana, plus tips to ensure optimum root development following clipping from the mother plant. A growing number of experts are making a business out of teaching people how to grow their own pot. Here's what to know to get started.
A Spanish term meaning “seedless,” sinsemilla refers to cannabis grown without seeds. In the wild, cannabis grows seeds along with buds so when it dies, it will grow again the following year. Growing sinsemilla cannabis was adopted in the 1960s and ‘70s to produce buds without seeds for consumers, by only growing bud-producing female cannabis plants and not allowing them to get pollinated.
“I only buy sinsemilla flower.”
“Sinsemilla is the only way to grow premium cannabis.”
History of sinsemilla
Cannabis can be male or female, and in the wild males pollinate females, which then produce seeds. The genetics of both male and female plants are passed down to the seeds, so that when a female plant dies—cannabis is an annual, growing and dying each year—it drops seeds, which grow into new plants the following spring.
Only female cannabis plants produce buds, so when they are pollinated, seeds grow with the buds. Sinsemilla, or “seedless” cannabis was grown to keep seeds out of female plants so they only produce buds. To grow sinsemilla cannabis, male plants are discard or moved away from females before they develop pollen sacs and can pollinate females. This allows female plants to focus their resources on bud production instead of seed production.
Growing cannabis with seeds is beneficial for the natural evolution of the plant. Plants naturally evolved within their environment, picking up traits and characteristics that helped them better survive their environment.
Benefits of sinsemilla
Before sinsemilla became a standard practice among cultivators, there was a good chance weed you grew or bought had seeds in the buds. Bud with seeds are generally considered lower quality—seeds lead to a harsh smoke.
With sinsemilla, the cannabis plant can divert all its energies and resources on producing buds, instead of seeds. This leads to better quality and higher potency buds, and also higher yields because there won’t be seeds in the buds. The difference in potency is so drastic that when consumers first started smoking sinsemilla, they thought it was a different species of cannabis.
Cloning Marijuana: How to Grow Cannabis Without Seeds
Cloning is a bit of a hot-button issue in the world these days. Only as far as cloning humans is concerned though. That’s fair enough considering all the moral, ethical, and spiritual considerations that come along with premise of replicating a human life. There’s no such questions to be debated in the botany world, and cloning plants has been done with much success for decades now. For example, cloning marijuana is an example of this approach to growing plants is a hit with home grow enthusiasts around the world.
You CAN grow a marijuana plant from a seed, but if want the same strain with exactly the same properties, and in some case the same unique characteristics, then you will need to clone it. If you ask an expert about how this process works, be prepared to absorb a LOT of information.
But ask them how to make clones from weed plants and you’ll find it’s quite straightforward. Not as easy as it is to buy marijuana clones, but those of you who like being hands-on with your home grow experiments will want to give cloning marijuana a try.
Cloning Marijuana Guarantees an Identical Plant
An overview of cloning marijuana will explain how it involves cutting of a small piece of an existing marijuana plant and then having that plants develop its own roots . The cut piece of plant will have the same gender and exact same genetic structure as its donor plant, meaning that the plant that eventually regrows itself from the cut piece will too .
Let’s say you have a particular marijuana plant that’s especially healthy and hardy and gives you a bountiful yield of exactly the type of bud you love . Would the sound of having a number of those EXACT same plants sound good to you? Darn right it would, and if you have that plant then achieving this is entirely possible.
Other advantages to cloning marijuana include:
- Expanding on your crop at no additional cost – asides from basic supplies, making clones is free
- The ‘head start’ that clones have in comparison to seedlings, meaning in the big picture that they’ll be at their flowering stage more quickly
- Better choice for those hoping to practice Sea of Green or 12/12 from seed techniques due to clones already being mature and able to be oriented to the flowering stage immediately
Cloning Marijuana: Guidelines
The first consideration you’ll need to have when cloning marijuana is that a ‘mother’ plant will be required to get the clones from. Obviously, choosing a female plant that displays signs of vigor and good health is best. If you have one of those you’ve likely at least mastered the basics of how to grow marijuana, but now you’re about to start down a whole new path.
Here’s a list of the primary supplies you’ll need:
Sharp scissors – You’ll need these to clip your clone pieces from the mother plant, as well as for future defoliation and trimming once your clones have grown into being their own plants
Starter cubes – these are also essential, as they’ll be the homes for your clones while they develop their own roots
Cloning Gel or Cloning Powder – These products are good because they provide a sealant around the cut plant tissue and then supply it with the hormones required for optimum root cell development
Proper lighting – This will be very well understood if you already know how to grow cannabis, but we’ll go over it again briefly in case it’s not. Natural sunlight is best of course, but that’s not possible for many growers much of the time. If that’s your situation, T5 grow lights are the best for clones and seedlings, and especially when suspended 8 or 9” above your clones.
Depending on your situation you may need more supplies, but everyone who’s going to try cloning marijuana will need these four.
Taking Your Clones
Alright, we’re now going to assume that you’ve got your healthy mother plant and all the supplies you need to start. The first thing you’ll do is determine the readiness of your mother plant. There is one basic criteria for this; if the leaf shoots or nodes of the plant are alternating (which means not connecting at the same point on the stem) it is mature and ready for cloning.
Next, soak the starter cubes in water for just a few minutes. No longer. This is important – soak them too long and you’ll reduce the effectiveness with which they’ll promote the clones developing a good root.
Now let’s get down to the hands-on part of how to make clones from weed plants. You want to clip new growth tips on the plants, where there is a new branching and a new top. It is also better to take your clippings from the lower half of your plant, as these leaf shoots have more rooting hormones than those higher up. They will grow roots more quickly because of these hormones.
These growths should be easy to identify being right on the top and often a much lighter green in colour.
Now, with scissors in hand, prepare to make your cut:
- Use your thumb and index finger to grab the shoot an inch or so below the new growth tip
- Eyeball your new cuttings so that they will be between 5 to 8” long, so you will be cutting 5-8” below the growth tip
- Hold it steady as you take the scissors and proceed to cut the branch away at a 45-degree angle
- After making the cut, use the sharp inside edge of one of your scissor blades to ‘scuff’ up the area just above your cut. This will expose more of the stocks ‘raw’ genetic material inside it and aid in the cloning process
Immediately after this you should place the cutting into a glass of water, and do the same for all cuttings you take. After a short period of time you can remove them and trim off huge lower leaves or clip top fan leaves. Return to the water right after doing so.
Once removed, if you’re going to use cloning gel or cloning powder now is the time. If not, proceed to place your new clones into moistened starter cubes. Press around the bottom of them to ensure they’re well sealed.
The last tip here is to keep your resettled clones out of grow lighting for the first couple of days to give them a chance to settle. No longer than 2 days though. And once you do start to give them lighting, don’t give them 24 hours of it. 16-18 hours a day is better.
Just like that you’ve got no need to buy marijuana clones, you’re now sufficiently in the know to create your own using nothing more than your existing crop and a few supplies.
As marijuana is legalized in more places, here’s how to grow your own
When it comes to growing his own marijuana, Chris Haynie leaves little to chance.
Inside a grow room in Richmond, Haynie has erected a 42-square-foot tent that houses four marijuana plants, the state’s legal limit for personal cultivation. Haynie’s setup is high-tech: An irrigation system releases moisture on a precise schedule; a motorized LED light timed to mimic the rising and setting of the sun moves along a rail across the top of the tent; and a monitoring system tracks key metrics of plant health, such as the moisture level and pH of the soil, and relays the data to an app on Haynie’s phone. If the system senses urgent problems, he’ll receive a warning text. Haynie’s friends are used to him bolting from a room mid-conversation to tend to his plants.
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Haynie, a bearded 38-year-old cannabis connoisseur who tattooed his thumbs with green ink, is no horticulture amateur. As the co-founder of Richmond’s Happy Trees Agricultural Supply, he’s part of a growing number of experts who are making a business out of teaching people how to grow their own pot. Recent laws in Virginia allow for limited cultivation of marijuana for personal use, and Happy Trees, which Haynie launched in 2019 with Josiah Ickes, 36, specializes in setting up growers to cultivate the plant.
Marijuana remains illegal on a federal level, but many states have abolished restrictions, creating a patchwork of rules throughout the country. Eighteen states and the District of Columbia have passed laws allowing recreational use. Virginia legalized home cultivation in July 2021; under the law, people 21 and older may possess up to an ounce of marijuana. It remains illegal, though, to buy or sell it in any form — including seeds — until 2024, when retail sales are expected to begin.
People still find ways to access seeds. When D.C. legalized the possession of limited amounts of marijuana in 2015, the District lacked the authority to create a legal economic market for sales. So cannabis activists organized seed giveaways throughout the city. At one early event in 2015, lines stretched for blocks.
The regulatory scheme also established what has become an expansive “giveaway market,” in which Washingtonians have used a loophole to provide harvested marijuana as a gift in exchange for the purchase of a legal product. Companies sell cookies, tea or paintings with a baggie of “free” marijuana on the side. One company sells motivational speeches delivered by a person who travels by bicycle.