Weed Seeds For Indoor Growing

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When starting an indoor cannabis crop, many growers ask themselves: what type of seeds should I grow? In this post we tell you the main advantages an Cannabis Seeds for Indoor Marijuana Growing. Best seeds for growing weed indoors. Check out these marijuana seeds for growing cannabis indoors. Weed seeds.

Marijuana seeds for Indoor growing

Today, and thanks to the efforts of breeders and cannabis seedbanks that have been selecting, breeding and crossing genetics from around the world, the worlwide cannabis community can choose among a huge range of marijuana strains on the market.

The main aim was and still is genetic improvement, so all growers can enjoy a high quality standard that meets their demands.

Marijuana plant grown indoors

Once we are about to start an indoor crop, the main question is: What are the most suitable strains for growing indoors?

Indeed, we have lots of possibilities, and while some genetics show their full potential in indoor grow rooms , others need different conditions or growing systems to provide best results. We must understand correctly our growing system and conditions to choose the correct strains to grow.

What marijuana strains should be grown indoors?

There are several aspects to keep in mind before purchasing our seeds:

Cannabis plants under artificial lights

Plant height and structure

Probably, the most important factor when growing in indoor cabinets or rooms is plant size, since the available space is limited and plants need favourable environmental conditions for proper development.

Indoor cannabis growing started a few decades ago when different strains were grown and bred in indoor grow rooms. Thus, Sativa-Indica hybrids were mainly developed indoors and are much more adapted to these conditions than, for instance, pure Sativas, which often grow too much and take too much time to flower when grown under HPS, HM, LED, CFL or other artificial lighting systems.

Hybrid cannabis plants combine the best traits of their parents, being vigorous and strong. These strains are more easily adapted to indoor conditions than landraces, which haven’t been grown/bred under artificial lights and therefore aren’t adapted to it.

Flowering time

Sour Diesel, a hybrid suitable for indoor growing

Growing indoors means using artificial lighting and ventilation systems, etc. what also means power consumption. This is why we must be sure that we’ll take profit from all this power, getting the best possible yields from our plants without forgetting quality.

Plants with a flowering period longer than 10-11 weeks represent a considerable expense in power consumption. This, combined to their height, made breeders to cross Sativa plants with Indicas to shorten both features, thus creating the socalled Indica-Sativa marijuana hybrids , plants that show an excellent and balanced combination between the main features of both parents.

Some examples of cannabis genetic lines suitable for indoor growing are varieties from the White , Blue or Skunk families, as well as Indica-Sativa and Sativa-Indica hybrids.

Growing Sativas in indoor growing tents

Colombian landrace, a difficult strain to grow indoors

As we have seen, indoor growing allows us to grow lots of different cannabis varieties by using lamps and ventilation systems.

Sativa plants can easily grow too much when grown indoors, although the experienced grower can handle this by using different pruning and training techniques. The SCROG technique , for example, enables the grower to keep the height of the branches uniform and under control.

However, and even if the grower is capable of keeping the height under control, the flowering time of Sativas is often too long (12-20 weeks), so – for most growers – they take too much space and time to be worth the effort.

If we don’t have appropiate climate conditions in our area to grow old school Sativas like Oldtimers Haze , growing our plants indoors is our only choice, so if we want to enjoy pure Sativas like that we’ll have to be patient!

How to grow autoflowering plants indoors?

A few years ago, the Lowryder strain was created, an automatic hybrid based on a Ruderalis plant that blooms automatically, regardless of the photoperiod. Since then, lots of autoflowering hybrids have been developed from the Lowryder genetics, which have quickly earned their space in the cannabis scene. Initially, these strains were mainly developed for outdoor crops, although, over time, they have shown greats results in indoor grow rooms too.

To obtain best results under artificial lights, we should use 400-600W lamps with a photoperiod of 16-20 daily hours of light. On the other hand, when we grow photoperiod strains (18/6 during growth and 12/12 during bloom) our power bills will be lower, so our grow room is much more efficient when using photoperiod strains rather than autos.

Cannabis seedlings growing indoors

The same happens with Early strains, which were bred for an early outdoor harvest. Sometimes, these strains don’t react well to a sudden change of photoperiod and start flowering when they reach sexual maturity, just as happens with automatic varieties. In this way, there is always a chance that these plants start flowering automatically, and not when the grower decides.

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We hope these tips helped you to choose what strains to grow indoors depending on your needs and means. Of course, this guide should be used only as a reference, since many experienced growers won’t hesitate to flower their Sativas during 6 months to obtain quality over quantity.

The articles published by Alchimiaweb, S.L. are reserved for adult clients only. We would like to remind our customers that cannabis seeds are not listed in the European Community catalogue. They are products intended for genetic conservation and collecting, in no case for cultivation. In some countries it is strictly forbidden to germinate cannabis seeds, other than those authorised by the European Union. We recommend our customers not to infringe the law in any way, we are not responsible for their use.

20 Great Cannabis Seeds for Indoor Marijuana Growing

Check out our handy guide on how to grow marijuana indoors and 20 great cannabis seeds for indoor marijuana growing. Growing marijuana indoors involves strong lights, fans, irrigation systems, and other cultivation equipment needed to provide marijuana plants with the right light, water, and nutrients to grow to their fullest potential.

What Is Indoor Marijuana Growing?

Indoor marijuana growing doesn’t just mean putting a marijuana plant next to the windowsill and hoping for the best. Indoor growing requires growers to mimic outdoor environmental factors such as sunlight, rain, and soil conditions. Indoor growers can equip themselves with lights strong enough to give energy to plants and the right soil conditions for optimal nutrient intake.

Indoor cultivation gives growers ultimate control over all of the elements that affect a cannabis seed’s yield, flower density, trichome production, and overall quality. Indoor growers aren’t beholden to the natural climate or season. Furthermore, cannabis crops are safeguarded against harsh environmental conditions such as wind, rain, and snow and predators.

Factors to Consider When Choosing Indoor Cannabis Seeds

When growing marijuana indoors, you’ll need to consider the most basic elements of a grow set-up starting with which cannabis seeds to buy for an indoor grow. The type of cannabis seeds you choose depends on your cultivation experience, budget, strain preference (sativa, indica, hybrid), and size of your growing space.

Here, you’ll find a list of 20 great cannabis seeds for indoor growing along with the strain’s ideal growing conditions.

Autoflowering Cannabis Seeds For Growing Indoors

Some growers may even use autoflowering seeds, which don’t require a photoperiod to flower like most marijuana seeds. Photoperiod marijuana seeds need a certain amount of light and darkness per day, usually a 12/12 cycle to transition from their vegetative to the flowering strains. For light-deprived locations, autoflowering strains will automatically flower at a set period.

1. Sensi Skunk Automatic

Sensi Skunk is a great cannabis seed for beginners and budget growers. Sensi Skunk Automatic allows beginners to take a low-maintenance approach to grow. This autoflowering seed features many of the same Skunk characteristics that have made its parent a favorite among growers and critics.

Sensi Skunk Automatic is bred from a curated ruderalis strain that enables the strain to begin to flower without a photoperiod. Sensi Skunk should autoflower after about five weeks. The seed grows short and stocky plants with big buds. Harvesting can occur about 50 days later. Experience a citrusy and sweet aroma with uplifting and stress-relieving effects.

2. Super Skunk Automatic

Super Skunk Automatic is ideal for medicinal users who want to plant as much medicine throughout the year as possible. Super Skunk Automatic provides users with strong indica effects without leaving you glued to the couch. Novice growers will appreciate how easy this strain is to grow and the relief it can bring for stress and pain.

For growers who can’t or don’t have the energy to maintain a finicky plant, the Super Skunk automatically begins to bloom after about four weeks regardless of changes in photoperiod. This automatic strain can be grown in a variety of areas such as windowsills. Super Skunk’s flowering period takes about 65 days and produces an average yield.

3. Northern Lights Automatic

Northern Lights Automatic is a great cannabis seed for growers with some experience who want to push their skills to the next level. Northern Lights Automatic is worth the effect due to its robust effects. This autoflowering strain is relatively easy to grow and produces award-winning effects and aromas.

Northern Lights Automatic grows short and just over three feet. Its flowering period is about 55 days and its seeds begin to flower after about a month or sooner. Northern Lights Automatic can produce harvests with dense and trichome-rich buds up to three times a year due to its autoflowering characteristics and flowering periods.

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4. Gorilla Glue Automatic

Gorilla Glue Automatic has won multiple industry awards for its extreme trichome production that can leave trimming shears glued stuck. Gorilla Glue Automatic can reach a medium height with a dense bud structure. This autoflowering strain is easy to grow for beginners and produces a sweet and pungent aroma.

Gorilla Glue Automatic’s grow time is between 50 and 60 days and produces a plant reaching almost 40 inches. Gorilla Glue exhibits relaxing and euphoric effects, perfect for medical conditions such as pain, arthritis, stress, nausea, and epilepsy. Be careful, Gorilla Glue has a very high THC content.

5. Girl Scout Cookies Automatic

Girl Scout Cookies Automatic combines classic GSC and ruderalis genetics to produce a high-quality autoflowering strain. This indica-dominant autoflowering strain grows into medium-size plants that respond well to training. Expect trichome-rich and sweet-smelling buds that produce cerebral and physical effects.

GSC Automatic’s grow time is between 60 and 70 days from seed. Plants can reach up to 35 inches in height and produce up to seven ounces per plant. GSC Auto is easy to grow, but can produce an extremely pungent aroma. Carbon filtering can help keep your indoor grow more discreet.

6. Green Crack Automatic

Green Crack Automatic is an autoflowering marijuana strain that blends the iconic Green Crack genetics with a ruderalis. The resulting Green Crack Automatic strain grows short and stout with extremely white buds and a delightful citrus and mango aroma. Green Crack Automatic delivers users energizing effects.

Green Crack Automatic’s grow time is about 63 days from seed and can grow up to 35 inches tall. Green Crack Auto is an easy-to-grow strain that produces moderate-to-high yields indoors and outdoors. After eight to nine weeks, these autoflowering seeds can deliver the right dose of medicinal relief to lift your spirits.

Feminized Cannabis Seeds For Growing Indoors

Feminized cannabis seeds for growing indoors will only produce female cannabis plants, albeit, they require a photoperiod to begin flowering, unlike autoflowering strains. Feminized plants eliminate the possibility of growing a male plant that can pollinate your entire grow. Many feminized seeds can thrive in indoor conditions.

7. Big Bud

Big Bud is an excellent feminized cannabis seed to grow indoors due to its very high yields and dense buds. Big Bud was popularized in the 1980s and continues to be one of the hardest-working seeds out there. This indica-dominant variety has a hash-like flavor and aroma and slightly sedative effects.

Bud Bud has a flowering time between 50 and 65 days. This feminized seed can grow to an average height and have a growth spurt during bloom. Bid Bud prefers warm weather and can thrive indoors under a hydroponic setup. Its thick stalks help support its heavy bud production. Sea of Green (SOG) techniques can be used for speedy growth.

8. Silver Haze #9

Silver Haze #9 is a sativa-dominant strain from Sensi Seeds that can be grown indoors. Silver Haze is commonly available as a feminized seed. This classic and award-winning haze strain produces a cerebral high and a complex bouquet of scents including citrus, berries, mint, and other sweet fruit.

Silver Haze #9 has a flowering time of about 70 days. Silver Haze #9 can grow well under lights. It can grow tall with heavy resin production and long buds. Silver Haze #9’s strong growth allows growers to grow these plants in close proximity. Silver Haze #9 also responds well to bending and training.

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9. Amnesia Haze

Amnesia Haze takes traditional Dutch genetics and elevates them to produce a euphoric and cerebral head high like other haze varieties. Amnesia Haze thrives in indoor growing conditions, but has a relatively long flowering time. The wait is worth it. Amnesia Haze can produce a high yield under optimal cultivation conditions.

Amnesia Haze prefers consistent warm temperatures and has a ten-to-eleven-week flowering time. Growers are advised to keep indoor temperatures between 70 and 80ºF. Amnesia Haze plants must be well-ventilated to prevent mold and pest problems. This feminized seed produces a citrusy and sweet-smelling strain with powerful effects.

10. White Widow

White Widow is an excellent cannabis seed to grow indoors. With roots in the Netherlands, White Widow was developed from a pure Brazilian sativa and an indica hybrid. White Widow’s seeds are easily available and are great entry-level seeds for beginner growers. White Widow can withstand cooler climates.

White Widow produces a pine-scented cannabis strain and has a flowering time of eight to nine weeks. White Widow grows into a stocky, but high-yielding plant with resin-covered buds. Growers recommend using the SCROG technique with White Widow. White Widow can grow in soil or hydroponic setup.

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11. Power Plant

Power Plant, from the Dutch Passion Seed Company, originated from South African sativa seeds. Due to its hardy genetics, Power Plant grows fast compared to most sativas and grows medium-sized flowers with popcorn buds, too. It has a woody and earthy aroma that can give you a calm and clear-headed high.

Power Plant’s flowering time is between seven and nine weeks. Power Plant seeds can grow well under SCROG methods. This plant can grow tall so consider your grow size. You can prune the plant to keep it growing nice and strong and save the trim for other cannabis infusions.

12. Critical

Critical is an overall excellent marijuana seed to grow indoors or outdoors. Critical seeds produce a high yield, are easy to maintain, and create a heavy coat of resin over its dense marijuana buds. Critical allows users to feel more relaxed and blissful.

Critical has a flowering time of about seven weeks. Its relatively speedy flowering time makes it a great strain for those who want to grow as fast as possible. Critical produces a plentiful crop with its tall plants, long leaves, and rich resin production.

Regular Cannabis Seeds For Growing Indoors

Regular cannabis strains can produce either a male or a female plant. There are many regular cannabis strains that can grow indoors. Below, you’ll find a list of the best cannabis seeds for indoor growing.

13. Jack Herer

Jack Herer is a great cannabis seed for indoor growing. Whether you’re a first-time or long-time grower, Jack Herer is an easy-to-grow sativa strain that delivers clear-headed euphoria and eases muscle tension. Enjoy its earthy, lemony, and peppery aroma mixed with woody and fruity flavors.

Jack Herer’s flowering time is about 65 days and can grow very tall. Jack Herer grows exceptionally in hydroponic systems. It grows bushy, so make sure there is enough space between your marijuana plants. Also, make sure you have enough height to support its growth and watch out for heavy branches that can snap.

14. Chemdawg

Chemdawg has been a popular cannabis seed since the 1990s. Chemdawg is the parent strain to many of today’s best-selling strains including Headband, Sour Diesel, and OG Kush. This indica-dominant strain is easy to grow and can handle stressors well. Chemdawg produces dense buds packed with trichomes and a fruity and diesel aroma.

Chemdawg’s flowering time is about 63 days, a relatively quick grower compared to other cannabis strains. Chemdawg does well when trained in a SCROG environment to increase the yields in a small space. SCROG requires growers to prune the foliage from the base to improve airflow. Chemdawg is vulnerable to mold.

15. White Russian

White Russian seeds by Serious Seeds is an indica-dominant hybrid with AK-47 and White Widow genetics. White Russian seeds produce a high bud-to-leaf ratio with compact and trichome-heavy colas. White Russian strains deliver a long-lasting and cerebral buzz along with a deep sense of relaxation.

White Russian seeds grow into medium-height plants and produce a very pungent smell. It has a flowering time between eight and nine weeks. White Russian doesn’t require as much maintenance as other cannabis seeds and can flourish in a warm environment.

16. Maple Leaf

Maple Leaf cannabis seeds by Sensi Seeds is a legendary Aghani strain that was smuggled out of the country around the late 1970s. This pure indica is fast flowering and develops compact plants, large leaves, and dense buds that have an excess of resin. Enjoy its citrus aroma and taste, as well as its sedating effects.

Maple Leaf’s flowering time is between six and seven weeks. Maple Leaf plants resemble sativa plants with its tall-growing characteristics and dense and elongated buds. Try your hand at growing Maple Leaf in soil or hydroponic setups. SCROG methods work well with this strain, too.

17. Hindu Kush

Hindu Kush is a pure indica strain that came out of the Hindu Kush mountains in Central Asia. Since the 1980s, Hindu Kush has been a stable strain that produces medium-height plants and dense buds. Hindu Kush strains exhibit a woody smell along with notes of hash and a calming body high.

Hindu Kush has a flowering time between six and seven weeks. Hindu Kush grows short and bushy with dense flower buds. With a hydroponic set-up, Hindu Kush can produce large buds with tons of resin. Use a SOG (sea of green) technique to maximize your yields. Just make sure you keep the airflow optimal to avoid mold.

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