Best Cannabis Seeds: Top Seed Banks of 2025
If you're trying to start growing cannabis, you know that you need all kinds of equipment, including growing materials, soil, nutrients, and more. However, the best cannabis grows from the best cannabis seeds. So, regardless of the complexity or quality of your growing conditions, you need to start by buying high-quality seeds.
Fortunately, finding marijuana seeds online has never been easier. But with so many strains and variations available, how can you know which particular seeds are the best? We've compiled a list of our top five picks to help you get started. Whether you're just starting your cannabis cultivation journey or are looking to expand your operations, here's what you need to know.
Summary of the Best Cannabis Seeds
- Best Overall: Seed Supreme
- Best for Experts: Homegrown Cannabis Co.
- Best Autoflowering Seed: DNA Genetics HG23 aka Michael Jordan
- Best Beginner Seed: I Love Growing Marijuana Sunset Sherbert
- Most-Popular Cannabis Seed: Seed Supreme Blue Dream
Where to Buy Cannabis Seeds Online
These days, finding high-quality cannabis seeds is as easy as a quick online search. Seed banks are your best resource for weed seeds because they offer a wide selection of different strains and types. Some of the top banks for marijuana seeds include:
- Seed Supreme - This is probably the most well-known and respected seed bank in the United States. Seed Supreme has over 4,000 marijuana seeds from 1,500 growers. So, no matter your skill and experience level, you're sure to find what you need.
- Homegrown Cannabis Co. - If you're more of an experienced grower, you may want additional insights and information to help you maximize your yield. Homegrown Cannabis Co. is a valuable resource that offers both grow kits and tons of blog posts about cannabis cultivation.
- I Love Growing Marijuana (ILGM) - This seed bank is best for beginners who are just starting their growing operations. Grow kits from ILGM can help you learn the basics of cannabis growing and harvesting.
- DNA Genetics - If you're looking for high-quality seeds that you can't find anywhere else, DNA Genetics has a wide selection of award-winning feminized cannabis seeds, autoflowering seeds, and regular seeds.
Best Cannabis Seeds
Best Overall: Seed Supreme
Because there are now thousands of strains available to purchase and plant, it's virtually impossible to narrow a list down to just a handful of options. So, instead, you can simply visit the number one seed bank in the United States: Seed Supreme.
This bank has thousands of strain variations from a variety of growers, so you can find exactly what you need to match your growing skills. Best of all, Seed Supreme offers a germination guarantee on all orders, so you can feel confident that your seeds will flower.
We also chose Seed Supreme as our top pick because it has an extensive shipping network nationwide with discreet packaging.
Pros
- Wide selection of seeds
- Highly popular strain options
- Fast, discreet shipping
- Germination guarantee on all orders
Cons
- Very limited customer support regarding growth tips and tricks
Specs
- Size: Thousands of strains from an array of growers
- Strain(s): See link
Learn more about Seed Supreme cannabis seeds today
Best for Experts: Homegrown Cannabis Co.
Although a seed catalog like Seed Supreme has everything you could want or need, it's surprisingly lacking in helpful information. So, if you're trying to upgrade your growing operation or just need some additional help, it's better to go with a supplier like Homegrown Cannabis Co.
What makes this bank ideal for expert growers is that you can find many high-end strains, along with detailed information on how to grow and cultivate them for the maximum yield. Having such valuable knowledge at your fingertips ensures you can expand your operations however you see fit.
As with Seed Supreme, Homegrown offers a germination guarantee, although its shipping network is not as expansive.
Pros
- Wide selection of all seed types
- Expert assistance and insight
- Grow kits available for beginners
- Germination guarantee
Cons
- Shorter shipping range compared to other seed banks
Specs
- Size: N/A
- Strain(s): See Link
Learn more about Homegrown Cannabis Co. Seeds today
Best Autoflowering Seed: DNA Genetics HG23 AKA Michael Jordan
For many indoor operations, autoflowering seeds are the best option because they germinate quickly and have a shorter maturation period. Plus, they don't grow as tall as other cannabis seeds, so they fit into most indoor facilities.
HG23 from DNA Genetics is one of the fastest seeds you can buy, germinating in as little as one to five days. It's also super easy to cultivate, whether you're a newbie or an experienced grower. HG23 is a hardy seed that doesn't require a lot of pampering, so whether you grow in pots or hydroponics, you should find easy success with this strain.
Pros
- Germination guarantee from DNA Genetics
- Germinates in one to five days
- Growth cycle is just about nine weeks
- Easy to cultivate for beginners
Cons
- Limited payment options compared to other seed banks
Specs
- Size: 5, 10, 15, or 20 seeds per order
- Strain(s): HG23 aka Michael Jordan (Indica-dominant)
Learn more about DNA Genetics HG23 aka Michael Jordan Autoflowering Seeds today
Best Beginner Seed: I Love Growing Marijuana Sunset Sherbet
If you're brand-new to growing cannabis, you want a seed that will grow quickly and easily, regardless of how well you treat it. Sunset Sherbet from I Love Growing Marijuana (ILGM) is one of the better options for beginners because it's hardy and easy to care for. Plus, ILGM guarantees germination, so you shouldn't have any problems getting your seed to sprout.
Another reason we like this particular seed is that it's feminized. Feminized seeds should only produce female plants, meaning you don't have to cull male plants during cultivation. This way, you can focus solely on producing the best crop possible, and Sunset Sherbet often has above-average yields compared to similar strains.
Pros
- High THC concentration
- Creates above-average yields
- Easy to germinate and cultivate
- Feminized seeds for stability and consistency
Cons
- Not the most popular strain for weed enthusiasts
Specs
- Size: 5, 10, or 20 seeds
- Strain(s): Sunset Sherbet
Learn more about I Love Growing Marijuana Sunset Sherbert Feminized Seeds today
Most-Popular: Seed Supreme Blue Dream
Whether you're growing for yourself or for business, it makes sense to grow highly-popular strains. Blue Dream is (according to Seed Supreme) the number-one seller in the country. This strain is so popular because it has a high THC concentration and creates a smooth, long-lasting high.
Even if you're still new to growing, you should find Blue Dream to be a relatively easy crop to manage. These seeds aren't feminized, though, so pay attention to which are male and female so you can cull males before they start pollinating.
Pros
- Popular seed strain for growers
- Moderate to high THC potency
- Germination guarantee
- Free shipping on most orders
Cons
- In rare cases, the seeds may struggle to germinate
Specs
- Size: 4, 8, 12, or 25 seeds
- Strain: Blue Dream Indica/Sativa
Learn more about Seed Supreme Blue Dream today
How We Picked the Best Cannabis Seeds
Seed Type
Because we're looking at specific seed strains, we chose a mixture of regular, feminized, and autoflowering options. We understand that everyone has a preference, so we didn't want to favor one type over the others.
Seed Bank
While the seeds themselves may be high-quality, you must also ensure that you're buying from a reputable source. Brands like DNA Genetics are well-known within the industry and offer guarantees for each customer. We only chose seeds sold by top-tier banks.
Shipping and Logistics
Whether you're growing for yourself or customers, you can't afford to wait for weeks or months for your seeds to arrive. We chose seed varieties with relatively fast shipping times so you can start growing and cultivating faster.
Customer Reviews
Because cannabis seeds are unregulated by the federal government, there's no official oversight on seed suppliers or distributors. So, we paid attention to customer reviews and complaints to ensure that each seed strain delivers on its promise.
How to Choose the Best Cannabis Seeds
No one knows which kind of cannabis seed will work best for your growing conditions. For our purposes, we paid closer attention to the quality of each seed, as well as the reputation of the bank providing these seeds. Below are some unique factors to consider when choosing a specific weed seed.
Strains
If you're growing marijuana for personal use, you know which strains you prefer. If you're growing for commercial purposes, you should have an idea of which strains are most popular within your state. Some strains do better indoors, while others thrive in outdoor conditions (like Humboldt seeds). Pick the strains that work best for your situation.
Seed Type
Overall, feminized seeds tend to be the most reliable and sustainable option, regardless of how you grow them. However, if you have limited space, autoflowering weed seeds are usually better. If you're just starting, you may try regular seeds so you can learn how to identify male and female plants (or breed your own strains).
Minimum and Bulk Orders
Fortunately, most suppliers cater to private growers, meaning you can buy just a handful of seeds at a time. However, if you're running a commercial operation, you may want to buy in bulk (e.g., 1,000 seeds or more). Make sure to ask your supplier if that's possible.
Customer Service
Even if you're buying the best cannabis seeds on the planet, chances are you'll need assistance on occasion. So, you should look for companies that offer comprehensive customer support, especially if your seeds don't germinate correctly. Ideally, the bank should have multiple communication lines and be available whenever you need them.
Germination Guarantee
Most reputable seed retailers will offer a germination guarantee. Typically, this guarantee is for a specific amount of time (i.e., 90 days). Make sure to read through the fine print so you know what to do if your seeds are duds.
Types of Cannabis Seeds
- Autoflowering Seeds - If you want seeds with a shorter flowering time and consistent results, autoflowering seeds are often the best option. These plants mature faster, but their diminutive size means you get smaller buds.
- Feminized Seeds - As the name suggests, feminized cannabis seeds produce female plants, not males. Since males can negatively impact the harvest, many commercial growers prefer feminized seeds whenever possible. However, they are harder to cultivate, so they're often more expensive.
- Regular Cannabis Seeds - Sometimes, the best marijuana seeds are just regular seeds from high-quality cannabis strains. Standard seeds have a 50/50 chance of developing into male or female plants, so you must pay closer attention to them during the cultivation process.
How to Plant Marijuana Seeds
Whether you're trying to plant the best sativa-dominant hybrid, THCA flower, or indica cannabis, the method should be the same. Here's a quick overview of how to get your seeds planted so they start germinating as quickly as possible:
First, germinate your seeds. The most common method for smaller operations is the "paper towel" method. In this case, put the seeds between two wet paper towels, moistening them regularly over a couple of days. Once the seeds sprout, you can move them to their permanent location.
The second option is to put the seeds in water. Since cannabis seeds need as much water as possible to germinate, they don't necessarily need soil until a sprout emerges.
If you can't use paper towels or jars of water, put each seed into paper cups with nutrient-rich soil. Wet them daily until you see growth, then move them into pots or the ground. Overall, remember to keep the soil damp. Set up an irrigation system if necessary.
Hydroponic growing is also a viable option, especially if you're growing indoors. However, hydro requires more specialized equipment. It's expensive to set up, but you get more control over your plants than you do with soil.
FAQs About the Best Cannabis Seeds
Which type of seed is best for beginners?
Both feminized cannabis seeds and autoflowering weed seeds are suitable for beginners. Feminized seeds are ideal because they won't produce males, meaning you don't have to worry about culling male plants from your crop. Autoflowering seeds are great because they germinate quickly and take less time to cultivate.
How tall do autoflowering seeds usually get?
The height of autoflowering weed seeds varies from one strain to the next, but most of these plants reach between 1.5 and three feet tall, making them ideal for indoor growing operations.
Are feminized seeds the best for growing large crops?
Since feminized seeds only produce female plants, they're perfect for larger growing operations. Since you don't have to remove males from each crop, you can focus more on cultivating as many high-THC buds as possible from each plant.
What is the average germination rate for cannabis seeds?
The best marijuana seeds should have a germination rate of about 95 percent. However, the older the seed, the less likely it will germinate. Typically, the best weed seeds are less than five years old (ideally, less than one year old, if possible).
The Bottom Line About the Best Cannabis Seeds
Now that you know a bit more about the best weed seeds, you can start growing and cultivating better cannabis crops for yourself or your customers. However, as with any biological crop, success depends largely on the time, effort, and resources you can devote to the process. High-quality cannabis seeds can only go so far if they're growing in subpar conditions. Happy growing!
