How To Start Weed Seeds For Outdoors

There's still time left to grow cannabis outdoors. Check out this post and find out all the possibilities depending on the strain. Picking the best cannabis seeds for your outdoor grow season is easy with this guide at hand. Spring is coming – time to grow weed outside! Dear Dan, I want to plant seeds directly in my outside location instead of germinating them inside. Is this unwise and can you give me any advice? –

There’s Still Time to Plant Cannabis Outdoors

In the Northern Hemisphere, from May to June, you might be asking yourself if there’s still time to plant cannabis outdoors. In this post we’re going to analyse the behaviour of different types of cannabis towards the end of the season, proving that the answer is yes; you’re still in time to plant cannabis!

Table of Contents

When it comes to growing cannabis, you need to keep in mind that most cannabis plants need a specific photoperiod (light period) in order to grow and produce the flowers that we’re all after. This means that if you’re growing outdoors you’ll need to do so within the right season in order to obtain the best possible results.

When Does Cannabis Flower Outdoors?

As a general rule of thumb, the flowering period of photoperiodic cannabis plants starts once they begin to receive less light and more hours of darkness. This can be done indoors whenever you want by simply flipping your light schedule to 12h light and 12h dark. However, outdoors this happens naturally over summer at different moments depending on the latitude at which you grow your plant.

  • Photoperiodic cannabis plants: feminized or regular.
  • Automatic or autofloweringcannabis plants.
  • Fast version photoperiodic plants.

Photoperiodic Strains

Photoperiodic cannabis plants are strains that depend on the amount of light the receive in order to flower. From germination, and during the first few weeks, these plants only spend energy on growing. Once they’re adults, they’ll keep growing until daylight is reduced enough to cause flowering. Photoperiodic cannabis plants can be both feminized and regular. Jamaican Dream is a fast flowering photoperiodic cannabis plant, ideal for late germination.

Autoflowering or Automatic Cannabis Strains

Autoflowering cannabis strains come from crossing a photoperiodic strain with cannabis plants that contain Ruderalis genes. Ruderalis is a strain from the Caucasus and they’re used to growing and flowering under 18h of light during the short Siberian summers.

Thanks to the ruderalis genes, autoflowering plants start flowering regardless of the amount they receive. This type of strain will start to flower between the third and fifth week of growing, depending on the strain. Autoflowering plants that flower sooner tend to grow smaller and produce less yield.

Fast Version Strains

These strains come from photoperiodic strains that have been crossed with autoflowering strains. The resulting plants are still photoperiodic, although they finish flowering up to two weeks before normal strains; these strains aren’t autoflowering but they do have a much shorter flowering period.

Some seed banks sell these types of seeds under different names like F1 fast Version, Fast Flowering, Early Version and Quick, such as Jack 47 F1 Fast Version, Royal Cheese Fast Flowering, Quick Critical and Quick Gorilla.

Latest Time to Plant Cannabis Outdoors

During the summer, the days begin to get longer until the solstice. From June 21 – 24th in the Northern Hemisphere, the days will begin to get shorter by minutes each day. This won’t affect your plants growth until about a month later.

During the first few days of august, most cannabis strains will begin to flower, although this may vary depending on where you live.

Growing Photoperiodic Plants at the End of the Season

Photoperiodic plants need to grow first in order to flower properly. This means that the longer they’re growing for, the larger they’ll be when it comes time to flower, which makes for an overall better yield. If you germinate at the start of the season you can harvest large yields from enormous plants, although if you germinate towards the end of the season you’ll need to keep in mind that you’ll harvest less quantity per plant.

Germinating photoperiodic plants in June

From June to August there’s two months for photoperiodic plants to grow before flowering. If you’re using large flowerpots (we recommend Smart Pot) or you grow in the soil, make sure to keep your plants stress-free (drought, excess water, root burn etc.) in order to grow decent-sized plants.

By following this method you’ll be able to harvest the same amount from two 2m tall plants as you would from one 4m tall plant. This is a great time to germinate sativas and tall hybrids in balconies, terraces or gardens in which you don’t want your plants to grow over 2.5 m tall. Cannabis plants in Smart Pot during the flowering period.

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Germinating photoperiodic plants in July

If you germinate your cannabis plants during the first couple of weeks of July, they’ll grow for about a month before flowering. If you do it in the second half of July, they’ll reach the second half of august before they start flowering. These plants won’t be as tall as others that germinate at the start of the season, although you’ll still be able to harvest a decent amount per plant.

In the worst-case scenario, you may be held back a few days before harvesting, but that isn’t much of an issue. If you’re going to plant sativas and you don’t want them to grow too tall for whatever reason, June and July are the perfect months to germinate.

Germinating photoperiodic plants in August and September

Germinating during these months means that most strains will be ready to harvest in November. In areas with mild winters such as Mediterranean climates in Europe, you can easily grow a plant during these months. In this case, we recommend using fast-flowering plants in order to harvest much earlier.

Kickstart Your Outdoor Grow!

Each year, when February tips over into March, we see the first signs of spring emerging. That’s a breath of relief for us all after the grim realities of a harsh winter, but spring is especially heart-warming for cannabis growers! Now is the time to start planning new grow adventures, starting with picking the best cannabis seeds to work with. Of course, we are here to help you make the most of every last ray of sunlight once this year’s outdoor grow season kicks off!

The Outdoor Grow Season: Cannabis Gardening

No matter how fancy and high tech grow rooms or tents may be, most growers agree that nothing beats weed raised on the pure, raw power of nature itself. On top of that, cannabis as a species has evolved out in the open for millions of years. Obviously, every last shred of cannabis genetics is meant to thrive in its original habitat, which makes the case for growing weed outdoors perfectly clear. Less sun in the season? Choose an Autoflowering strain. Perfect climate? Feminized is the right choice. With prime genetics like Amsterdam Genetics cannabis seeds, anyone can prepare for a great kickoff to the outdoor grow season!

We’re all aching to catch a bit of a tan and soak up some much-needed vitamin D under the prevailing lockdown conditions. Gardening is a great way to do just that – including cannabis gardening, obviously. As the spring equinox approaches, it’s time to pick that perfect strain and start preparing to germinate and grow some plants!

When Does The Outdoor Cannabis Grow Season Start?

Several factors determine the perfect timing for the start of the outdoor grow season. Geographic location matters, as spring doesn’t bring warmth and sunlight to all regions simultaneously, or in equal measure. Still, from a global perspective, the spring equinox is an important point on any grower’s calendar. The spring equinox officially marks the first day of spring; in the Northern Hemisphere at least. Every year, around March 20, the Sun crosses the equator parallel, promising more hours of daylight and warmer weather to come. For the southern half of the planet, the March equinox hails the start of autumn, as the annual seasonal cycle proceeds in the exact opposite direction.

The Outdoor Grow Season, Step By Step

Let’s see how you can best prepare for the oncoming grow season. If you know what to do and when to do it for perfect timing, you can spend all spring and summer dreaming of that glorious harvest time as you watch your grass grow. Here’s our month-by-month guide to the ultimate outdoor grow season!

Late February Through March: Planning For Planting

Picking An Outdoor Grow Location

By late February, as the first brave snowdrops and crocuses burst from the soil, it’s time to stock up on seeds and pick the cannabis genetics that best match your taste and grow goals. This is the time for planning ahead – don’t forget that the time for planting is drawing closer every day now…

It all starts with great seeds…

Try to decide on the best spot to plant or pot cannabis plants after germination. Our outdoor grow locations blog helps weigh all the relevant factors and pick the prime weed growing spot in any garden. Aim for the optimal combination of sunlight, shelter from bad weather, and a stealthy spot to avoid unwanted detection. Growers who have found found that sweet weed spot are good to go. Start by loosening up the soil and add some organic fertilizer to optimize your natural open-air grow medium. Read up on the best soil for growing weed here.

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Find The Perfect Match In Outdoor Cannabis Seeds

Picking the right cannabis seeds is possibly the most important step on the road to the harvest of your dreams. There are many things to consider here. Are you looking for specific genetics, such as sativa seeds or indica-dominant strains? Are you growing for specific effects, or a favourite flavour? Perhaps you want to grow medicinal cannabis for stress relief, to combat depression, or to treat (chronic) pain issues? You’ll find all of this and more among the thirty-plus world-class strains in our online seeds catalogue.

Growing Weed In Warmer And Cooler Areas

In the northern parts of the Northern Hemisphere, including Canada, US states up north and Northern Europe, summers tend to be rainier, cooler, and shorter than those in more southern regions. That is why southern growers can start germinating and pregrowing their seeds in March, planting them once the April sunshine comes. In northern areas, May is the best month to plant germinated seedlings outside. Growers could can decide to pregrow seedlings indoors as early as late February to give their weed a head start for when spring arrives.

The start of the outdoor season varies between regions.

Feminized, Autoflower, Or Regular Seeds?

Then there’s the choice between photoperiod seeds or autoflower strains that start flowering automatically. Regular seeds can grow into male or female plants, giving you extra options and flexibility, but feminized seeds maximize your grow efficiency by yielding 99% feminine plants with harvestable flower buds. That’s a lot of choices to make – better start picking the best feminized, regular, or autoflower seeds to order. Give the delivery guy or girl enough time to ship them over, because once you see the first signs of spring, April is just around the corner!

April: Germination And Pregrow Time

Come April, even northern outdoor growers can start growing seeds. As the days lengthen and the sun gains strength, this is a good moment to germinate your seeds. If you still haven’t decided, order your cannabis seeds now to make sure they arrive in time. Germination, as this blog explains, is the moment when a tiny weed seedling emerges from its protective seed shell. The first root and leaves peep out, ready for their first drink of water and touch of sunshine.

Germination: a special moment both indoors and outdoors.

Growers working in Mediterranean climates can start planting seedlings and pregrown cannabis plants outside in April. For the northern parts of the US, Canada, and Northern Europe, this is the time to start germinating the seeds you bought. Once they pop, put them in small flower pots in the window sill where they get lots of early sun. Another option is to set seedlings off in a (pregrow) tent under artificial lighting. That way, your young plants are stronger once you take them outside in May. Having a little greenhouse available makes it safer to plant outdoors in late April, but even then, the option to bring fragile sprouts back inside if a late frost spell hits is a safe bet.

May: Time To Plant Your Outdoor Cannabis Grow!

Yay – you’ve made it to May! This is when spring peaks all over the northern half of the world, ready to tip over into summer warmth. June and July are the most prolific growing months of the year, so planting young plants in May lets them make the most of the summer throughout the vegetative stage of their life cycle. By now, your pregrow should be past its infancy, with the first real branches and characteristic weed plant leaves starting to shoot upwards to the heavens. If you haven’t germinated your seeds yet, you’ll want to do so now, preferably planting them outside as soon as they pop without further delay.

Useful Tips For Your Outdoor Grow Season

If you’re not sure which seeds to pick for this year’s outdoor grow season, we have a few suggestions to help you on your way.

Outdoor Indicas & Indica Dominant Strains

Our seeds catalogue indicates the average flowering times of every strain we have. As a rule of thumb, cannabis with more indica-dominant genetics tends to flower faster. They evolved in mountainous Asian regions where they had to flower quickly before the cold weather returned. That makes them great for northern climes and their shorter summers. Added benefit: indica strains tend to grow short and bushy, making them easier to hide and manage in gardens with limited space. Pineapple Kush is a good example of a heavily indica-leaning strain, as are Strawberry Glue and our sweet-tasting Chocolato. Broadly speaking, these same considerations also apply to hybrids with dominant indica genetics.

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Strawberry Glue is a nice indica-heavy outdoor strain.

Outdoor Sativas & Sativa Dominant Strains

Sativa genetics evolved in warmer equatorial regions, enabling them to enjoy long, hot summers and loads of sunshine. That is why sativa strains tend to have longer flowering times than indicas, making them more suited for sunny, southern areas closer to the Mediterranean, or the southern coastal areas of the US. If you are growing weed up north and you’re after typical sativa highs and their cerebral, energizing head buzz effect, try finding a strain with a nice balance of indica and sativa genetics. Cannabis seeds such as White Choco, Tangerine G13, or Choco Cheesecake are good examples. Sativa genetics tend towards tall plant growth, which can make stealthy growing tricky. On the other hand, sativa strains usually feature open, airy bud structure. That can help prevent mold damage from culprits like bud rot or mildew. Indicas tend to have more compact buds that can prove risky during the cool, damp conditions associated with harvest time up north.

White Choco: legendary hybrid outdoor genetics.

Autoflowers Make The Most Of The Cannabis Grow Season

Autoflower strains are a brand apart when it comes to outdoor growing. These plants carry cannabis ruderalis genetics in the mix, which enables them to start flowering at their own preferred time rather than waiting for the days to grow shorter around midsummer. If you play your cards right, planting autoflower strains early in the season (preferably pregrown indoors for a solid start outside), you could squeeze in two or even three grows into a single cannabis grow season. Depending on your location and the weather conditions, you could take autoflower plants outside in April (if there’s no chance of late frost).

Choco Kush Autoflower in full bloom.

Pick an autoflower with a very short flowering and grow phases and you should be able to harvest in late June or July. That gives you enough time to get another grow going before it gets too cold – even if you don’t have much space. Do keep in mind, though, that the speed at which the automated beauties develop limits your options to guide them or correct your mistakes. Try to pick a robust, rugged strain with high resistance to pests and fungi. Milkshake Kush Auto and the hugely popular White Choco Autoflower strain are our prime suggestions for your automated outdoor grows. Autoflowers are usually vulnerable to overfeeding, so go easy on the nutrients and keep them close for daily inspection.

Time To Start Picking Those Seeds!

As you can see, there’s plenty to consider before getting that fresh outdoor grow season started. Whichever approach fits your location, taste, and garden options best, now is the time to start shopping for seeds that will make the most out of your grow. The better you’re prepared, the more time you’ll have to soak up that spring and summer sunshine while your crops shoot up around you…

Better get that hammock ready – enjoy watching that grass grow!

You now know all you need to kickstart your outdoor grow season. Remember: summer is approaching fast… Grab those seeds and enjoy your outdoor grow season!

Grow Q&A: Starting Pot Seeds Outdoors

Dear GJ,
It’s ideal to start your outdoor crop indoors but if for some reason it’s impossible, you absolutely can plant directly in your chosen location. Keep in mind that unless you’re using feminized seeds, you’ll still have to return at least once to remove the males before they mature. Also, remember that young seedlings can be easily damaged by exposure to the elements early on in life. On the plus side, any that survive are sure to be hardy and well acclimated to their location.

Plant more seeds that you expect to grow out fully and water them in well. Sounds to me like you can’t regularly visit your chosen location so be sure to bring water and organic fertilizer whenever you find the opportunity (and especially if there’s been no rain for over a week).

If you choose to start them indoors, the benefits are plenty. Seedlings can be started while it’s still winter outside and vegetated into nice-sized bushes before it’s warm enough for them to go out. Oscillating fans will recreate the wind to strengthen the young shoots and prepare them for life in the wild. Stronger plants mean bigger yields.