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How is your environment like? Well, in this category of indoor cannabis seeds, you will find an assortment of seeds that can grow in artificial grow environments, those which can get described as semi-permanent, and even grow rooms explicitly meant for cultivating pot indoors. Put simply; nothing should deter you from growing ganja, provided you have the necessary measures in place to control wind, humidity, or light to let your vegetation develop an ultimate growth.
There are plenty of reasons seasoned cannabis farmers may choose to farm cannabis indoors, under a controlled environment. Besides the obvious fact that it allows for effective breeding and cultivation, it separates the crop from contaminants, rogue infestations and undesirable alteration of the specific gene pool.
Indoor farming allows the farmer to maximize time, space and resources to achieve the best yield and maintain strain integrity. But not all seed strains are fit for indoor farming.
At Amsterdam Marijuana Seeds, our grower-oriented approach to cannabis cultivation has been the guiding principle behind the high quality genetics of our seed groups. We apply proven technology to our seed genetics engineering that guarantees a 100% success rate in the production of indoor weeds seeds for sale in the USA – that are suitable to grow indoors and in other controlled environments.
Thinking of getting started with indoor weed farming, we have compiled this guide to help you navigate through the process of finding the right indoor weed seeds and getting started on the process of planting cannabis indoors.
Hope you’d find it useful.
What Are Indoor Weed Seeds?
As you should know, before all the magic happened, and the various strains and cross mixes appeared, cannabis was relatively a plant of the wild. The plant grew in whatever climate it deemed fit. Whether it was the ultra cold Ural Mountains or the lush vegetation of equatorial Africa, marijuana survived, but although as various strains that were environment dependent.
But with advancement in farming methods and the domestication of the weed plant, climate dependent weed strains can now be planted in a controlled environment indoors where the same weather conditions in its native environment is replicated, but this time with better control on the elements, nutrients and spacing to achieve an abundant yield and a sturdy plant.
While any type of marijuana seed can be planted indoors, there are some specific strains that would only do so well when cultivated under watchful eyes indoors and in a controlled environment. Photoperiod strains fall under this category.
Photoperiod Marijuana Strains
Basically, marijuana seeds are either photoperiod strains or not. Photoperiod strains are those whose growth pattern is dependent on light cycles. They are very sensitive to light and a distortion in the light cycle can hamper their flowering and production.
A simple distortion in the light cycle of a photoperiod strain during their dip time can result in the loss of the yield. The situation is dire as light pollution such as those from street lights or other sources, even if just for a short time, can potentially cause the plant to revert to its vegetative phase, display hermaphroditic tendencies, produce inferior yields, or fail to flower altogether.
Why Indoor Weed Seeds?
Indoor weed seeds are far from regular seeds . They are more stabilized and are able to produce a higher yield than most if proper taken of. Most indoor seeds are feminized ; as such you do not run the risk of producing male species that are useless to a harvest.
For commercial and recreational growers, indoor seeds offer the best value for money per growth square foot of space.
Whom should buy Indoor Marijuana Seeds?
Indoor seeds are best suited to recreational farmers with only a few pot plants in their homes or commercial farmers with the right financing to afford the rigs required to set up a temperature and lighting controlled greenhouse.
Because of the need for artificial lighting, farming indoor seeds can be a little expensive as you are likely to quickly ramp up electricity bills running into thousands of dollars monthly.
So, before deciding on planting indoor seeds, it is only wise that you consider the ancillary cost associated with the venture to determine if it is right for you.
When to Start Indoor Cannabis Seeds
Growing cannabis is an organic process without strict sets of rules. It is not a linear system to learn, but an art to be mastered. To start indoor seeds, there are three specific needs that must be met – Water, correct temperature (warmth) and a good location.
Each viable seed contains all the information needed to grow the strain of plant you have chosen, all they need are the right conditions and the life cycle will begin. There are a number of equally effective methods for how to grow indoor seeds, over time you will find the one that works best for you.
STRAIGHT INTO THE MEDIUM : Place seeds directly into your medium, this way you can avoid any transplant shock. More often, it is easier to germinate in a small pot of your chosen medium then pot on to the garden or bigger pots.
PAPER TOWEL : Seeds are placed on a moistened paper towel on a plate and placed in a warm dark place. Usually covered with plastic or an upturned plate to retain moisture and humidity. After a few days to a week, your seeds have sprouted.
JIFFIES, PLUGS AND ROCK WOOL STARTERS : Easy to maintain as you can have fifty seeds germinating in a very small space. Once the seedlings are established they can be put in their final position without damaging roots.
IN WATER : Simply soak seeds in enzyme enriched water until you see the tap root appear, and then put in your medium. The seedling will quickly strike and break the surface about a week later.
GERMINATION STATIONS : Offering substantial control over the germinating environment germination stations provide humidity, temperature control and can accelerate germination times.
When your plants have broken the surface and the cotyledons have shed the seed husk and opened to reveal the first set of true leaves photosynthesis has begun. Now you have a true marijuana seedling on its way to becoming a heavy resinous indoor miniature or booming outdoor tree.
Set lights to an eighteen hour day, six hour night light regimen. This doesn’t have to coordinate with the actual daylight hours; you can set it to times of day that suit you. Running electrical equipment during off-peak periods can save you a lot of money. For more information on growing, check out our grow guide .
How to Grow Indoor Seeds
Once your seeds have broken the surface, the vegetative stage has started. Growing seeds indoors would require a couple of fixes and we have outlined them under some headings below:
Lighting (LED, High-Pressure Sodium, MH or CFL): whether you are taking up grow spaces in a disused cupboard in your home or running a full fledged operation in your basement, lighting is the most important factor for growing indoor weed seeds.
There is basically lighting for every budget. You can have a rudimentary yet very efficient CFL (Compact Fluorescent Light) or small LED panel (Light Emitting Diode) setup for just a few hundred dollars. Or if growing commercial, HPS (High-Pressure Sodium) and MH (Metal Halide) lamps would give you world class flowers at the end of the grow cycle
However, watch out for the heat generated by these lamps. Ensure that your space isn’t getting too hot for healthy cannabis growth.
Soil : There are plenty of options in this category. You can choose from actual planting in specifically cultured soil in pot plants or utilize neutral mediums such as rock wool with the roots of the plant immersed in the nutrient infused medium.
Humidity : Large indoor establishments have temperature and humidity controls to manage the grow environment, but if you are on a tight budget, you can apply basic instincts. Always ensure the soil or medium is wet but not soggy. Introduce a fan to circulate air and moisture, and an extractor fan to remove excess heat.
Temperature : Proper temperature is maintained by using fans to remove heat and circulate the breeze. Lots of fan-forced breezes keep temperatures under control and strengthen your young plants. Exotic disciplines can be used like adding carbon dioxide to the environment. Low-stress training and scrogging can be used to increase the growth rate and flower potential of indoor cannabis.
Autoflowering Indoor Seeds or Feminized Indoor Seeds?
You can find indoor seeds in the autoflowering and feminized strains. Although most feminized strains are better suited to indoor grows, autoflowering strains can also produce a good yield with even less hassles when planted indoors.
Some autoflowering strains that would make great indoor grows include:
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Cultivation of cannabis with indoor seeds gives a grower control over the crop. You can micromanage every step of the plant’s life cycle. An indoor setting allows you to control the plants’ feeding, lighting schedule, temperature, humidity, and other crucial factors for your indoor seeds’ optimum growth.
Suppose you want to plant indoor seeds, this guide offers you all the information about growing marijuana indoors. We also provide a list of the best indoor seeds for indoor growth.
What Are Indoor Cannabis Seeds?
Although all cannabis strains can be cultivated in an indoor setting, some seeds are specifically meant to be cultivated in an indoor environment. Indoor cannabis seeds are sensitive to change in the climate and prefer to be in a controlled room.
Why Should You Grow Indoor Marijuana Seeds?
If you are starting, you may ask yourself, what are the benefits of growing indoor seeds? And how indoor cultivation impacts your plants? Are they better than outdoor seeds? Are they the highest THC seeds in the market? Your response to these questions depends on the indoor strain you choose to cultivate. Indoor seeds have a few advantages over outdoor seeds. Below, we explore the benefits and cons of using indoor seeds.
Pros of Indoor Seeds
Control Over the Environment
The good thing about growing indoor seeds is the ability to control their growth conditions, such as temperature, humidity, water, nutrients, lighting, and airflow. It allows you that your plants grow under optimal conditions, which translates to better and higher yields.
Different Methods of Cultivation
With indoor marijuana seeds, you get to enjoy different cultivation methods. These include hydroponics, aeroponics, and apart from the soil, you can also use coconut or rockwool. Hydroponic is growing cannabis in nutrient-rich water. The aeroponics growing technique where the roots are suspended in the air and the nutrients are delivered to the mist form plants.
Fewer Chances of Being Attacked by Pests and Mold
Since you can control temperature and humidity in the grow room, you will not allow mold or pests development conditions. If you are going after outdoor cannabis seeds, you have to know that they are most susceptible to mold and pests.
You Can Grow Marijuana All Year Round
Every marijuana strain thrives in specific conditions, and since the temperature in outdoor growth changes sporadically, it is impossible to grow cannabis all year round. But with indoor growth, you will grow all year round because you can control the grow room climate.
Easy To Monitor
When growing cannabis outdoors, some weather, such as heavy rains or high temperatures, will hinder you from checking on your plants as frequently as you would like or even at night unless there are lights. However, when you grow indoor seeds, you will check on your plant any time of the day, irrespective of the rain, heat, or darkness.
Best for Medical Cannabis
Medical marijuana patients need to consume high-quality marijuana. We are not saying that outdoor seeds are not of high quality, but indoor cannabis is better as it is grown in a controlled environment where it’s possible to control hygiene. More so, the grow room can be sterilized before the seeds are planted, and every time the grower enters, they have to be sterilized to avoid transporting germs to the plants.
Pollination is a point of worry for all cannabis growers, and that why you find most growers opting to use feminized indoor weed seeds because they want maximum yields. However, if you grow regular outdoor seeds, the chances of them being pollinated by male plants from neighboring fields are high. With indoor seeds, you can control pollination by removing the male plants as soon as you identify them.
When you grow outdoor weed seeds, the plants are easily detected, and their odor makes them susceptible to robbery. But indoor seeds are cultivated in an enclosed setting such as a grow tent or greenhouse, ensuring that you control everyone who has access to it. Thus, you don’t have to worry about people stealing your green herbs.
Cons of Indoor Seeds
Irrespective of all the benefits, growing indoor cannabis seeds has its problems.
Tiring, Time-Consuming, and Expensive
Setting the grow room is a lot of work and requires a substantial investment because you need to purchase the grow kit, form the tents, lights, pots, air conditioning system, and grow medium. You may also need to hire professionals because doing a DIY setup may lead to some setbacks, affecting yields and quality of your indoor marijuana.
In countries where marijuana cultivation is illegal, growers opt for indoor thinking they will be safe. Mistakes happen and nothing is certain. Although marijuana is legal in many places globally, you must check your state laws on indoor seed cultivation to avoid breaking the law.
Tools and Equipment Used in Growing Indoor Cannabis Seeds
Suppose you want to grow indoor marijuana from the indoor seeds, you will need:
- Grow room/grow tent
- Growing lights
- Air conditioning
- Thermometer and hygrometer
- pH test kits for test soil pH
- LUX Meter for measuring and optimizing light in the grow room
- Timer for automating light cycle
- String/gardening wire for training your plants
- Containers such as fabric pots for growing your plants
- Seedling starter kit
Best Places for Growing Indoor Seeds
Now that you have all the equipment needed to grow your weed seed indoors, you need to choose the best place to grow your indoor cannabis seeds. These places include:
- The basement
- Grow box
- Closet, or
- Build a grow room
Choosing a Growing Medium for Indoor Seeds
When growing indoor marijuana seeds, you can use either soil or hydroponics as the growing medium. Soil is the most straightforward growing medium used by most cannabis growers, especially beginners. You can either buy the soil mix or create your own.
Hydroponic uses water or another soilless substrate, such as coco coir or pear as the growing medium. In this method, plants are fed with nutrients directly into the roots, giving the total grower control over the nutrient intake. This method is ideal for experienced growers and leads to improved yields.
Choosing Indoor Seeds
There are many weed seeds for indoor growing for sale, therefore, growers need to select quality indoor weed seeds. Discussed below are the 10 best marijuana seeds for indoor growing:
Sour Diesel is a well-known strain from the Diesel family that is highly potent. It is a cross between Chemdawg and Super Skunk. This strain is not recommended for beginner growers and prefers dry and warm climates. However, know how to control powdery mildew since Sour Diesel is susceptible. Therefore, it is recommended that you cultivate this cannabis strain indoors.
Sour Diesel indoor marijuana seeds grow into tall plants that can be monstrous if not trained. The strain’s flowering time lasts from 9 to 10 weeks, with 1.5 – 1.6 oz/ft² (450 – 500 g/m²) yield when it is grown indoor.
Blue Dream is a Sativa dominant strain that is highly sought after in America. This strain packs quite a punch as its THC content ranges between 16 and 20%, with 2% CBD. Growing Blue Dream indoor marijuana seeds requires patience because it grows slowly as it needs time to branch out in its early stages. The plants are tall and can hit 6 feet (180 cm) with high and healthy yields. Blue Dream is a favorite of mites, pests, mold and mildew; therefore, growing it indoor helps control humidity, facilitating the infestation.
Hellfire OG is a perfectly balanced hybrid strain that gives a couch locking high. This strain was created by mixing Rascal’s OG Kush and SFV OG Kush. Hellfire OG boasts a THC content of 28 to 30% and has potent euphoric effects that help manage depression. Hellfire OG indoor weed seeds grow up to 7 feet (2 meters) high with compact and dense buds. Hellfire OG flowering time lasts 55 – 65 days with high yields of 1.3 – 1.6 oz/ft² (400 – 500 g/m²).
Purple Kush Autoflower
Purple Kush Autoflower is a popular cannabis strain among cannabis lovers who love smoking this strain because of its potent high. It is got by crossing Hindu Kush and Purple Afghani.
It is straightforward to grow Purple Kush Autoflower weed seed indoors because it grows into hardy, medium-sized plants. This beautiful strain improves your garden aesthetics with its purple hues and unique aroma. Purple Kush flowering period lasts 56 – 63 days with a pretty decent yield of 1 oz/ft² (300 g/m²) when it is grown indoor.
Granddaddy Purple is a beautiful purple colored strain that is a cross between Big Bud and Purple Uncle. These are top-shelf seeds that are highly sought after by both novice and veteran growers. Granddaddy Purple seeds give perfect weed plants for growing indoors because their height reaches up to 3.5 feet (100 cm) with a flowering time of 9 – 10 weeks. The strain’s buds are thick and dense with a layer of rich THC (15 – 19 %) trichomes. You can expect to reap high indoor yields of 1.3 – 1.6 oz/ft² (400 – 500 g/m²).
Strawberry Cough is a hybrid strain whose origin is marred by a lot of myths. Just like its name, expect your field to smell like strawberries. This Sativa dominant strain is pretty easy to cultivate and thrives in an indoor environment.
When you plant Strawberry Cough weed seeds indoors, the plants grow up to 3 feet (90 cm) and mature in 63 – 70 days. Strawberry Cough has sturdy branches to support the weight of the tight bud with a pine cone shape.
Chocolate Thai is a 100% Sativa strain from Dutch Flowers. Like its name, the strain was first discovered in Thailand. This cannabis strain delivers an energizing, mind-clearing high. Though it has a low THC content of 10 to 15 %, users love this strain because of its creamy chocolate taste and delicious high that does not leave you couch-locked.
Chocolate Thai is a pretty tricky indoor weed seed to cultivate, and they are best left for expert growers who have the patience of waiting out their long flowering period and low yield. Suppose you are in a cold climate, it’s best to cultivate this weed seed indoors because it thrives in a warm and dry environment.
Legend OG is an Indica dominant strain with a woody and floral aroma. Although this strain does not have a well-documented origin, Legend OG was created by Swamp Boys Seeds. This is a high THC strain with THC ranging between 20 to 25%. It grows tall and is ideal for average growers and produces moderate yields.
If you want to cultivate potent indoor marijuana seeds, Cement Shoes is our best bet. Apart from a high THC content of 20 – 24 % and 1% CBD, this strain offers you a relaxed cerebral buzz and a heavy-bodied buzz that leaves you couch-locked. It is a perfect nighttime strain and can treat sleep disorders. A three-way cross gets this strain between OG Kush, Animal Cookies 09, and Wet Dreams.
When you cultivate Cement Shoes weed seeds indoors, you get a 5 feet (150 cm) tall plant with a flowering period that lasts between 60 – 70 days. This Indica dominant strain produces high indoor yields of 1.3 to 1.6 oz/ft² (400 to 500 g/m²).
Wedding Cake indoor cannabis seeds are Indica dominant. The seeds grow into a short and sturdy plant that thrives in various environmental conditions. These are high THC seeds with a THC content of 17 – 23 % and delivers a long-lasting and cheerful high. Wedding Cake strain flowering period lasts for around 65 days and produces decent yields of about 1.5 – 1.6 oz/ft² (450 – 500 g/m²). This strain is moderate to cultivate but is naturally resistant to various diseases and pests.
Indoor Seeds vs Outdoor Seeds, Which Is the Best?
Suppose you are new to marijuana and are wondering where to grow your indoor weed seeds. The seeds you choose to go with depends on your potential, the type of conditions it requires to thrive, and weather in your region. It is best to grow marijuana indoors because you can control your cannabis plant growth conditions. But with outdoor seeds, you have little to no control in case the weather changes.
Final Thoughts on Indoor Seeds
Indoor seeds are best when you live in a region where the weather often fluctuates, making it difficult for cannabis to thrive in an outdoor setting. If you are shopping for the indoor cannabis seed, look no further because we have a large selection of Indica and Sativa indoor seeds and this guide provides you with a list of the best marijuana seeds for growing indoors.
Cannabis seeds are sold to customers over the age of 18 and are sold strictly for souvenirs or storage purposes only. The cultivation and germination of cannabis seeds is illegal in most countries. We advise customers to check the laws in their country before ordering.
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Are you looking to grow indoor seeds? This guide provides all the information you need to take the leap and a list of the Highest THC seeds for sale