How To Take Seeds Out Of Weed


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Herbicide-Resistant Weeds: Looking Below the Soil Surface Farmers have been fighting weeds for millennia. While the number and efficacy of tools to combat weed pressures have vastly improved, Learn all about growing marijuana with Leafly's comprehensive guide, covering the plant, its life stages, what it needs to survive, and how to create an ideal environment for it to thrive. Leafly is the leading destination to learn about, find, and order cannabis. Learn more about types of weed strains and discover marijuana dispensaries near you.

Herbicide-Resistant Weeds: Looking Below the Soil Surface

Farmers have been fighting weeds for millennia. While the number and efficacy of tools to combat weed pressures have vastly improved, weed resistance is a continuing problem for crop productivity and profitability. Even when weeds appear to be destroyed, their seeds linger, hidden in the soil seedbank. A seedbank is the living memory of resistant weed species and the source for future weed infestations. They are the most impactful robber of yields worldwide and particularly destructive for cotton, which is the focus of my research.

In cotton fields, weeds such as Palmer amaranth can establish themselves even after a late-post herbicide application, due to their open canopies. The presence of weed seed “escapes” from herbicide application are unavoidable. These late-season escapes could be low in frequency and may not lead to crop yield loss in the current season but can add substantial amounts of weed seed to the soil seedbank, resulting in future weed problems. Palmer amaranth is a prolific weed seed producer: a single female Palmer amaranth can produce up to a million seeds! In addition to increasing seedbank size, these late-season escapes contaminate cotton lint and affect market quality.

Seedbank management is a key aspect of herbicide-resistant weed management. My research investigates reducing the amount of seeds Palmer amaranth can produce and inherently decreasing future competition with the cotton crop. After all, we need to protect the fabric of our lives, right? If we want to aid the cotton crop to have a fighting chance against this highly competitive weed, we need to minimize seed production and seedbank addition to sustain the utility of existing herbicides.

What if we found ways to stop a female Palmer amaranth from producing a million seeds? We know that the proclivity of a weed is influenced by the environment experienced by the mother plant. My research targets Palmer amaranth females and their seeds by using tricky tactics like sterility hormones, desiccating the cotton early in its growth and even the use of LED lights. This research is expected to lead to the development of integrated strategies that minimize seedbank additions from Palmer amaranth escapes, thus complimenting herbicide-based tactics used in-season and helping improve the longevity of available herbicide tools. The tactics evaluated in my research will also support the implementation of zero-tolerance programs for Palmer amaranth management in US cotton production. A zero-tolerance program helps prevent resistant weeds from going to seed at all by implementing a variety of strategies for maximum integrated weed management. Overall, the outcomes of this project are expected to help suppress long-term population growth of Palmer amaranth, reduce weed control costs and improve the economic and environmental sustainability of cotton production in the United States.

I am excited to work with Cotton Inc. as my FFAR Fellows industry sponsor. Cotton Inc. is at the forefront of supporting scientists and researchers across the supply chain, with efficiency and environmental sustainability in mind, to continually evolve the ways cotton is grown and manufactured. Mentorship by scientists at Cotton Inc. will not only help me better understand the cotton industry, but also give me tools to relay this work and future work, to others. The foundation of this research relationship and the creative liberties I can take in my research to explore seedbank solutions would not be possible without the FFAR Fellowship. I am sincerely grateful for the Fellowship’s focus on cutting-edge scientific research and the development of collaborative skills that agricultural scientists need to discover and implement high-impact solutions.

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Leafly’s guide to growing marijuana

Growing weed is super easy—it’s called “weed” for a reason—so don’t worry if you haven’t grown anything before. Our clear, easy-to-digest guide will help growers of all kinds, especially first-time ones.

Whether indoors or outdoors, growing marijuana is fun and rewarding, but it can also be challenging and takes a certain amount of patience, time, and money. We’ll walk you through all the steps of growing, from preparation, to seed germination, plant growth, and harvesting, as well as best practices and how to troubleshoot common problems.

Because the plant was illegal for so long, a lot of grow info has been passed down by word of mouth. There are many myths and traditions about growing weed, so it can be hard to sort good, sound advice from hearsay. Also, because it was illegal, there’s ample information on indoor growing and how to get the most out of a small space by maximizing harvests and training plants.

These are all great resources but not all growers want to put in that amount of time and effort to get a ton of weed—some growers just want to have fun, grow a little weed, and smoke something they grew themselves.

Below are all the topics covered in our growing guide. That is followed by a list of where it’s legal to homegrow in the US and a quick overview of the growing process.

Enjoy, have fun, and learn a tip or two—growing weed is therapeutic and relaxing, and there’s nothing better than smoking weed you’ve grown yourself.

Leafly’s complete marijuana growing guide

Where is it legal to homegrow cannabis?

Before you get started growing, you’ll need to see if you even can grow in your state. Below is a list of states in which it is legal to grow your own marijuana at home, both states with medical and adult-use legal status. If your state does not appear on this list, it is not legal to homegrow in your state .

You might be surprised which states don’t allow homegrowing—only five medical states and one medical territory allow homegrowing at all, and some adult-use states require a medical card.

Check out our Guide to marijuana legalization for more details on homegrowing in your state.

Note that “mature” plants are those in the flowering stage, when plants begin to produce buds; “immature” plants are those in the vegetative stage, before they produce buds. A “household” is defined as two or more people living at a single residence.

State Legalization status Legal to homegrow? How many plants?
Alaska Adult use Yes 6 (3 mature, 3 immature)
Arizona Adult use Yes 6
California Adult use Yes 6
Colorado Adult use Yes 6 (3 mature, 3 immature); 12 per household
Connecticut Adult use Yes 6 (3 mature, 3 immature)
Hawaii Medical w/ medical card 10
Illinois* Adult use w/ medical card 5
Maine Adult use Yes 15 (3 mature, 12 immature, plus unlimited seedlings)
Massachusetts Adult use Yes 6; 12 per household
Michigan Adult use Yes 12
Missouri Medical w/ medical card 6
Montana Adult use Yes 8 (4 mature, 4 immature)
Nevada Adult use Yes 6; 12 per household
New Jersey Adult use Yes 6; 12 per household; medical: 10
New Mexico Adult use Yes 6; 12 per household; medical: 16 (4 mature, 12 immature)
New York Adult use Yes (pending) NY is currently setting up a framework for homegrowing; adults will be able to grow 6 plants individually and 12 per household when it takes effect
North Dakota Medical w/ medical card 8
Oklahoma Medical w/ medical card 12 (6 mature, 6 immature)
Oregon Adult use Yes 4; medical: 6
Rhode Island Adult use Yes 3; medical: 24 (12 mature, 12 immature)
South Dakota Adult use Yes 3; 6 per household (starting 7/1/2021)
Virginia Adult use Yes (pending) Virginians will be able to homegrow 4 plants per household beginning July 1, 2021
Vermont Adult use Yes 6 (2 mature, 4 immature)
Washington* Adult use w/ medical card 4 (up to 15 if given authorization from healthcare practitioner)
Washington, DC Adult use Yes 6 (3 mature, 3 immature); 12 per household (6 mature, 6 immature)
Guam Adult use Yes 6 (3 mature, 3 immature); medical: 18 (6 mature, 12 immature)
US Virgin Islands Medical w/ medical card 12
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*Illinois and Washington are adult-use states but require a medical card to homegrow.

Quick overview of the basics of growing marijuana

The best way to get quality buds and big yields is to grow strong, healthy plants. Here’s a quick rundown of the most important things you need to know about growing weed:

  • Cannabis is a warm-season annual—it thrives in temperate climates, such as Northern California’s famed Emerald Triangle, and it grows and dies each year, having to get planted again the following year.
  • It will take about 10-32 weeks to grow a weed plant, depending on the method you choose and how big you want plants to get.
  • Before you start growing, you’ll have to determine whether you want to grow indoors or outdoors (more below). You can grow weed pretty much anywhere—it just depends what space, equipment, and resources you have available.
  • Marijuana plants start out as either a seed or a clone. Seeds will need to germinate to grow into a seedling. A clone is a cutting taken off a weed plant that you can then grow into another plant, and it will have the same genetic makeup.
  • After the seedling stage, a weed plant enters the vegetative stage, which is generally the longest stage of its life. Here the plant will be a main stalk, branches, and fan leaves—no buds yet.
  • The magic happens during the flowering stage, when weed plants start to grow buds. Plants enter this stage about two months before harvesting.
  • At harvest, you’ll cut down your plants, trim, dry, and cure them, and then your homegrown buds will finally be ready to smoke.

What does a marijuana plant need to survive and thrive?

  • Light: Weed is a photoperiod plant, meaning the daily amount of light it receives will determine when it flowers—when it starts to produce buds. Outdoors, this happens when the daily amount of light reduces as summer turns to fall, and indoors, growers can control this by changing artificial light from 18 to 12 hours a day.
  • Water: Weed plants of course need water, and the amount of water they need will change as they grow, and also depends on your local climate and weather.
  • Nutrients: Weed plants need nutrients so they can grow strong and be healthy.
  • Temperature and humidity: You’ll need to provide an environment with optimal temperature and humidity that will allow weed to thrive. Generally, this is between 55-85°F, with a relative humidity between 50-70%.
  • Wind/airflow: Weed plants also need wind or airflow, which you can simulate indoors with fans, and which will occur naturally outdoors.
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Indoor vs. outdoor marijuana growing

Your homegrowing journey starts with the question: indoors or outdoors?

Growing outdoors is the cheapest and easiest way to grow, because you can utilize the power of the sun and other natural resources, but you need the proper space to do it, and the space needs to be able to get ample sunlight throughout the growing season. Often, you can let plants grow large and get big yields with more space outdoors.

Growing weed indoors is more expensive because you’ll need to spend money on equipment and utilities, but you can control every aspect of the grow environment and set up an indoor grow almost anywhere. Expect to grow some killer weed—indoor is known for its potency and quality.

How to choose a marijuana strain to grow

At the end of the day, you want to grow a strain you like. A single plant can yield between a half-pound and a full pound of dried buds, depending on how big your plants get, so you’ll have a lot of it come harvest time.

The last thing you want is to put a ton of time and effort into growing weed and end up with a strain that you don’t like. Everyone has different tastes and preferences, and strains affect people differently.

How To Take Seeds Out Of Weed

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