You must consider the cannabis seeds, nutrients, space, and soil when you cultivate weed. Aside from these things, you also need to consider the flowering period. Many cannabis enthusiasts want to grow their weed but often lack the patience to wait for the plants to flower.

Cannabis plants take weeks to flower. Once you plant the seeds, you have to wait for many days before you can harvest. The flowering time varies from strain to strain. Many strains have a lengthy flowering period, but thankfully, some strains have a shorter flowering period.

Why Plant Quick-growing Cannabis Strains

We live in a fast-paced world where information travels very quickly. We want to achieve things as soon as possible. Unfortunately, the times we live in have spawned impatience among many people. Thankfully, many breeders in the cannabis industry have developed ways to speed up the growth of cannabis strains to achieve the flowering stage ASAP.

In the past, breeders bought seeds from the black market and attempted to develop hybrid cannabis strains suited for personal cultivation and fast turnover. Because of the illegal nature of cannabis, they had to develop plants that grow indoors. These were short and stocky, but they produced above-average yields. 

Sometimes, they would plant auto-flowering cannabis seeds. Unlike photoperiod strains, these seeds have a short growth period and do not require light switching to maintain the flowering phase. The benefit of growing fast flowering strains is you get rapid turnovers.

Today, cannabis is legal in many areas. Some states only allow the cultivation of hemp (cannabis that contains less than 0.3% THC), while others allow the cultivation of marijuana (cannabis with more than 0.3% THC levels). Hence, breeders can easily experiment with marijuana plants as freely as possible to develop a potent marijuana strain that can grow quickly yet yield much.

Fortunately, the knowledge on weed cultivation has been improved and updated. Even newbies can grow different strains with relatively quick flowering times. It is even possible to shorten the seedling and vegetative stage in some strains and have multiple harvests a year.

This article lists some of the potent strains that grow incredibly fast. If you are looking for the perfect marijuana strains to grow quickly on your own, we recommend that you consider our list below. However, before you start thinking about cultivating marijuana, make sure that it is legal to grow hemp or marijuana in your location.

What Makes A Cannabis Strain Grow Quickly?

Let us focus our attention on weed strains that flower for an average of 45 days. First of all, there are three types of cannabis: Indica, Sativa, and Ruderalis. However, Indica and Sativa are the most prominent. In general, Indica strains grow faster than Sativas. These strains evolved in colder areas, which meant that they had to mature faster to survive. Sativas evolved in warmer climates, which meant that they could take longer to mature.

The flowering time of marijuana strains depends on their parent genetics. However, it also depends on soil conditions, climate, nutrition, and other factors. For instance, an outdoor strain may grow faster when exposed to more sun. When the sun is blocked on most day hours, it may finish growing slowly. As a marijuana grower, you should put the plants in optimal conditions to help them grow healthy and allow them to grow faster.

Ten 45-Day Flowering Strains

Pakistan Valley

The Pakistan Valley strain is one of the fastest flowering weed strains available today. It will flower as quickly as 45 days to 55 days after planting the feminized seeds. The best thing about this strain is you can either plant it indoors or outdoors.

The strain originated from the Hindu Kush mountains in Pakistan. It takes three weeks for the vegetation state, which is then succeeded by the flowering state. It is considered one of the rare landrace strains we can find on the cannabis market today.

Note that the resinous buds of this strain contain large amounts of THC. You can get as much as 21% THC from its flower. Thankfully, the strain does provide relaxing and therapeutic effects. It has medium to high levels of CBD, which counteract the adverse effects of the high THC levels.

If you suffer from pain, insomnia, or stress, smoking this strain may help. Once smoked, this weed will give you a potent high that is strong and long-lasting. However, it will provide relaxing and sedating effects as well. Therefore, you can use this strain to experience the potential medicinal benefits of cannabis.

Northern Light

The Northern Lights strain is a classic Indica breed that originates from the Thai and Afghani landrace genetics. It is famous because it has been used to breed many other strains available on the cannabis market today. It has a sweet and earthy taste and produces a heavy high. It has since then been propagated by Amsterdam's Sensi Seeds.

The average flowering time of this strain is around 6-7 weeks. It is easy to grow and will produce a high yield. Grow it indoors, and you will get multiple harvests a year. If you want to get as much yield from a strain, consider Northern Lights. You can grow it on soil or in hydroponic systems. Keep a steady airflow throughout the indoor garden to prevent humidity.

Today, northern Lights is one of the most popular strains because of its fast flowering time, resinous buds, and growth resilience. It has even given birth to hybrids like Super Silver Haze and Shiva Skunk.

The strain produces a euphoric high that relaxes the body and eases the mind. Many healthcare providers recommend the strain for pain, stress, insomnia, and depression. If you wish to use the strain to combat specific health conditions, talk to your healthcare professional first.

Big Nugs FAST

The name pretty much explains the speed at which this strain grows. It is one of the fastest-growing strains from Seedsman, one of the best online seed banks today. Seedsman crossed the genetics of Critical Mass with Afghani, Skunk, and Big Bud strains to create this marvelous cannabis.

While Big Nugs FAST grows pretty well indoors, you may grow it in a greenhouse outdoors. It takes 6 to 7 weeks to grow huge buds. Since the buds and the branches are hard and heavy, you may need a support structure to prevent the plants from breaking. Once the buds mature, you may get 450 to 550 grams of yield per square meter.

The buds produce heavenly resin and will have a fruity taste and aroma. Expect the buds to have high levels of THC, which will produce a potent and relaxing high. It is popular among commercial growers because the strain yields generous harvests in a short period.

Quick Critical +

Dinafem Farm has done well to produce one of the fastest-growing Quick Critical cannabis varieties. The Quick Critical + is a feminized strain that flowers in less than 50 days (around 42 to 49 days). This Indica-dominant hybrid is suitable for impatient growers because it is ready to produce unique buds in 6-7 weeks.

Besides its fast flowering time and quality yields, it produces almost the same fantastic aroma, flavor, resistance, and effect as its predecessor, the Critical +. Still, it produces flowers at least one week quicker. Hence, even when you grow it outdoors, you have at least one week less time to stop worrying about whether the weather conditions or other factors may ruin the crops. If you grow it indoors, you have more time to plant and harvest multiple times.

Quick Critical + is a cross of the Critical + and the Critical + 2.0. The resulting strain is a mid-sized tall plant that has Sativa-shaped leaves. The Sativa-like structure allows light to penetrate more easily, thus causing the flowers to develop faster. The buds tend to be bulky, thick, heavy, and resin-packed.

Even if you are not an experienced grower, you can quickly grow this weed strain at home. If you use quality grow lights and provide excellent growing conditions, you can expect the weed to yield at least 600 grams per square meter. If you grow it outdoors, you can expect the plant to grow 250 meters tall and yield at least 1,250 grams.

The flowers will have a high 16% to 20% THC level and a low 0.1% CBD level. While the CBD level is high, it will help contribute to a relaxing cannabis experience. It may help relax the muscles, relieve stress, and provide other potential therapeutic effects.

Green Poison

Green Poison is a flavorful Indica strain provided by Sweet Seeds. It has a fruity and floral scent and delivers a potent euphoric high that relaxes the entire body. The name may sound lethal, but pain, stress, and insomnia are all it kills.

As a mold-resistant strain, it will resist various infestations. Hence, beginners do not have to worry about the health of the marijuana plant too often. It can handle diseases on its own, but it does need basic caring. You will notice that the strain will produce strong fruit-like smells. The aroma itself is enough to produce stress-relieving effects. Hence, it is popular among people who love to have a relaxing and happy experience with cannabis.

The strain takes 6 to 7 weeks to harvest, making it one of the fastest flowering strains to consider. It has predominantly 70% Indica genetics and 30% Sativa genetics. It will grow rapidly and produce big buds. You can grow it outdoors or indoors. Expect a harvest of around 500 to 600 grams per square meter indoors and up to 700 grams per plant outdoors.

Ganja Dwarf

If you want to have a good harvest twice a year, then Ganja Dwarf is a good option. The plant grows short in size during its entire growth cycle, hence the name. Nevertheless, it can grow quickly when appropriately grown and provide at least two yields per season.

Ganja Dwarf, also known as Lowryder, is an auto-flowering strain that grows best indoors. However, you may also grow it in a greenhouse. Even as a beginner, you can easily grow this strain. It is easy to manage indoors and can be hidden easily among tall plants.

The strain produces high levels of THC, which can reach up to 20% if you provide it with the best growing conditions. Once smoked, it may take time to deliver its effects. Hence, do not smoke too much at once because the high will slowly creep on you.

Royal CBDV Automatic

If you are not into high THC strains, consider the Royal CBDV Automatic strain by Royal Queen Seeds. It produces high levels of cannabidivarin (CBDV), a rare cannabinoid that enhances the effects of CBD while producing beneficial effects on its own.

The Royal CBDV Automatic produces around 5% CBD and less than 0.3% THC. As a high CBD strain, it produces relaxing effects. It soothes the mind, relaxes the muscles, and does not produce any intoxicating effects. The rich earthy and piney aroma helps produce an energizing and motivating effect.

If you are looking for hemp seeds that grow relatively quickly, consider this strain. When grown indoors, the plants can grow to 80 cm tall and yield 450 grams per square meter. When grown outdoors, expect to harvest up to 150 grams per plant.

Tatanka Pure CBD

The Tatanka Pure CBD strain is a fast flowering strain that produces dense, dark-green buds. The flowers contain high levels of CBD and a very negligible amount of THC. The flowers provide a lucid clear-headed state without any psychoactive effects when smoked.

The strain is a cross of Medical CBD and Elixir Vitae. After breeding the strain for a few generations, its genetics stabilized and became a reliable strain. It produces a sweet and spicy taste that entices the senses.

It will grow up to 100 cm tall and yield around 450 grams per square meter when grown indoors. When grown outdoors, it can reach a height of 160cm and yield around 425 grams per plant. You can expect the strain to produce flowers briefly, around 6 to 8 weeks.

Blueberry Muffin

The Blueberry Muffin is an Indica-dominant hybrid that crosses the Razzle Berry and Purple Panty Dropper strains. The flowering time of this strain is just 45 days, which allows you to harvest flowers just a few weeks after planting the marijuana seeds.

The strain gets its name from the mouthwatering aroma of its resin-rich buds, which is quite similar to freshly-baked blueberry muffins. The psychoactive high is uplifting and energizing. Hence, it is best smoked during the day.

Quick Mass

Quick mass is a cross between White Widow X and Critical Mass. It is a fan favorite because it has a short flowering time of 6 to 7 weeks, produces high yields, and delivers fantastic effects. The aroma is intensely fruity and fresh. Once smoked, it generates a potent active high that creeps throughout the body.

Bottom Line

If you want to grow your cannabis but lack the patience to wait for it to flower, consider our list of ten 45-day flowering strains. Each of these cannabis varieties was genetically developed to have a quick flowering cycle yet produce high yields.

Check out our Indoor Hemp Flower and Outdoor Hemp Flower options if you are not into growing weed. Our hemp products are perfect for relaxing the mind and body after a stressful day at work.