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Best Indoor Seeds

Over the years, planting cannabis has risen in popularity as a result of the various medical benefits which the plant is able to provide. Growers of such plants seek out indoor cannabis seeds which would best be suited to their requirement, since it not only provides them with the ability to control cultivation conditions but also enables them to incur amazing results.

However, choosing which indoor seeds to opt for can be difficult with the abundant amount of indoor seeds available on the market. Most growers base their decision upon factors including but not limited to flowering time, yields per m², effects, and flavours. Therefore, the following provides an insight into the top five indoor seeds, a few amongst the masses.

Master Kush x Skunk

A combination of two strains, the Master Kush x Skunk is a highly reliable and dependable strain which can be cultivated indoors; it becomes ready to harvest in between 7-9 weeks of flowering, with yields falling in the range of 500 – 600 gr/m2 under a 600 watt light. The resultant aroma and flavour is similar to that of Master Kush, with a sweet and earthy note.

Medicine Man

The Medicine Man, also known as the White Rhino, was created via cross- breeding a heavy-yielding Afghani with a Brazil x South Indian hybrid and is one of the most coveted seeds having won various cannabis awards. Grown indoors, the Medicine Man will provide growers with an indica-looking plant which produces abundant quantities of resin, which are ready to crop after 56-60 days of flowering. Yields under 600 watt lighting are expected to be in the region of 600 gr/m2.

Neville’s Haze

A cross of NL5 Haze A with a Haze C, Neville’s Haze is primarily opted for by indoor growers and is opted for by Sativa connoisseurs who value the flavour and the high which it produces. When grown indoors under 600 watt lights, yields of 400 gr/m2 are to be expected, with a flowering time of 16 weeks. Since the plant grows tall and thin similar to a vine hence it is advised to put them into flowering indoors when the seedlings have a few sets of leaves or cuttings are rooted.

Black Widow

The product of cross-breeding between a Brazilian Sativa and a hybrid from South India, the Black Widow, also known as the White Widow, is recommended to be grown indoors, making it one of the best indoor seeds. The flowering time is of 8-10 weeks, with indoor growers being able to harvest between 350 – 450 gr/m2 in 10 weeks of flowering for the best resin production; buds will be dense and white with resin crystals. It is often used for therapeutic purposes, including pain relief and muscle spasms since it provides an overall relaxed and cerebral feeling.


Originally a limited edition cannabis strain, Ash (Afghan Skunk x Afghan Haze) has been popular amongst growers with flowering times between 8 – 11 weeks depending on

pheno-type and the resultant yields between 450 – 600 gr/m2. With fruity, pungent aromas and flavour, it provides users with a cerebral and physical high.

Best Indoor Seeds is a cannabis breeder chosen specifically by Seedsman for the quality of their marijuana seeds. Buy your seeds online here.

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AK47 x Sensi Star strain. Buy AK47 x Sensi Star feminized seeds at

AK 47 x Sensi Star Seeds – Feminized

Amnesia Haze Strain. Buy Feminized seeds at

Amnesia Haze Seeds – Feminized

Flower from Big Bud Seeds

Big Bud Seeds – Feminized

Blackberry Kush strain. Buy Blackberry Kush feminized seeds at

Blackberry Kush Seeds – Feminized

Flower from Blue Cheese seeds

Blue Cheese Seeds – Feminized

Flower from Blueberry seeds

Blueberry Seeds – Feminized

Bubba Kush strain. Buy feminized seeds at

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California Orange Bud Strain. Buy Feminized seeds at

California Orange Bud Seeds – Feminized

Cheese Cannabis Strain. Buy feminized seeds at

Cheese Seeds – Feminized

Flower from Critical Kush seeds

Critical Kush Seeds – Feminized

Flower from Hindu Kush Seeds

Hindu Kush Seeds – Feminized

Flower from Jack Herer Seeds

Jack Herer Seeds – Feminized

Kali Mist Strain. Buy feminized seeds at

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Bud from Northern Lights Seeds

Northern Lights Seeds – Feminized

Northern Lights x Big Bud strain. Buy Northern Lights x Big Bud feminized seeds at

Northern Lights x Big Bud Seeds – Feminized

Northern Lights x Amnesia Haze strain. Buy Northern Lights x Amnesia Haze feminized seeds at

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Og Kush Strain. Buy Feminized seeds at

OG Kush Seeds – Feminized

Purple Kush Strain. Buy feminized seeds at

Purple Kush Seeds – Feminized
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best indoor seeds for cannabis cultivation

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.

Control Pollination

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.

No Theft

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
  • Fans
  • Filters
  • 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
  • Garage
  • Attic
  • Grow box
  • Closet, or
  • Build a grow room

Best Places for Growing Indoor Seeds

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

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

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

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

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

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

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

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.

Cement Shoes

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

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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E-mail: [email protected]


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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