Top 5 strains to grow in a greenhouse
Growing cannabis in a greenhouse (or poly tunnel) has never been as popular. From just a few well grown plants you can harvest a year’s worth of cannabis, all for the cost of just a few cannabis seeds. A greenhouse protects your plants from the worst of the early season and late season weather.
Combine this with the benefits of growing cannabis under warm greenhouse conditions (usually several degrees warmer than outside) and you have a recipe for success! The best greenhouse strains require no maintenance or expertise to grow. Just plant them in good quality moist, nutritious soil. Water when required and watch the genetics fill your greenhouse with top quality cannabis!
|Best greenhouse strains, Dutch Passion greenhouse seed collection|
What to look for in cannabis seeds for a greenhouse grow?
Greenhouse cannabis strains combine THC rich genetics with heavy yields and a growth pattern which is well matched to greenhouse cultivation. The two main cannabis seed choices are autoflower seeds and photoperiod feminised cannabis seeds.
The best greenhouse cannabis strains will grow well across a wide range of soil and climate conditions. Heat tolerant greenhouse strains are able to cope with the high temperatures often seen in mid summer. The easiest cannabis strains to grow in a greenhouse need no maintenance at all, just watering and perhaps an occasional feed.
The best greenhouse cannabis strains are effortless to grow. With many decades serving greenhouse growers of all types, Dutch Passion have more experience than most. If you’re looking for good greenhouse strains then the following ones are hard to beat!
Above, Frisian Dew reaching huge proportions in a professional greenhouse
|Growing cannabis in a greenhouse|
Best cannabis seeds suited for greenhouse growing
The following photoperiod feminised seeds and autoflowering cannabis seeds come with Dutch Passion’s highest recommendations. These are some of the best strains for greenhouse cultivation that you can get, proven over many years by thousands of growers. Here’s the Dutch Passion top 5 high yielding greenhouse strains!
Frisian Dew, one of the best greenhouse cannabis strains for heavy yields
Frisian Dew is often grown outdoors as well as in a greenhouse. These cannabis cup winning genetics are fully proven and are some of Dutch Passion’s most resilient outdoor/greenhouse genetics. The uncomplicated grow style and heavy yields make this one of the top 5 yielding greenhouse strains. With sufficient space Frisian Dew seeds can grow into monster plants 3-4m tall and almost as wide! This makes Frisian Dew one of the best greenhouse cannabis strains available today.
|Frisian Dew grown in a huge greenhouse with epic results!|
Passion #1, one of the best feminised greenhouse cannabis strains for potent harvests!
Passion #1 is part of the Very High THC seed collection, reserved for those strains that can deliver up to, and around, 20% THC in optimised conditions. It’s a tough Californian Indica which has been one of the best greenhouse cannabis strains available for a couple of decades.
Outdoors she tends not to be quite as resilient as Frisian Dew in the most demanding northern European climates. But with the protection of a greenhouse (or polytunnel) Passion #1 really excels and reaches her true potential.
Passion #1 can reach 3-4m tall in optimised conditions. In a greenhouse she may benefit from being topped (growing tip removed to produce a bushier plant) or trained (tallest branches tied down).
If you like powerful indica greenhouse cannabis strains then Passion #1 should be near the very top of your list. Good greenhouse strains don't come much better! Passion #1 is part of the Dutch Outdoor cannabis seed collection. This is where you will find all the best outdoor cannabis strains. These will also grow very well in a greenhouse.
Auto Ultimate, best autoflowering greenhouse cannabis strain for XL yields
Most greenhouse growers will find that just about any autoflower strain will deliver good results in a greenhouse. But some autoflower seeds will really deliver special results. One such strain is Auto Ultimate, it’s possibly the heaviest yielding autoflower strain in the Dutch Passion collection and a member of the Dutch Passion Classics cannabis seed collection.
In order to achieve the spectacular yields which she is capable of, Auto Ultimate can take a couple of weeks longer than other autoflower strains. But the patient grower will be rewarded with genuine XXL yields. The total grow cycle from autoflower seed to harvest can take around 15 weeks.
For best results, some growers germinate their seeds indoors and give their autoflower seeds a couple of weeks of indoor growth using 20 hours of daily light. This gives them the best possible start and keeps them safe while they are at their most vulnerable.
Auto Duck, best autoflowering greenhouse cannabis strain for stealth!
Auto Duck has a unique stabilised leaf deformity. The leaves look more like a ducks foot print than the usual iconic cannabis leaf shape! Combined with the light aroma, this makes Auto Duck the best strain for greenhouses in urban environments where stealth can be particularly important.
Auto Duck grows from autoflower seed to harvest in around 12 weeks in a greenhouse. During the first month or two (before the heavy blooms form) Auto Duck is not easy to identify as cannabis. The fingers on the cannabis leaves often fuse together to create a cannabis plant with a unique, naturally camouflaged, appearance.
|Auto Duck grown in a Scandinavian greenhouse|
Auto Critical Orange Punch, the best greenhouse cannabis strain for an affordable price
Auto Critical Orange Punch is one of the best autoflower strains in the Dutch Passion collection. The very high THC levels, heavy yields and tangy orange taste make this a customer best seller. These all-round star-qualities ensured that Auto Critical Orange Punch made the prestigious High Times Top 10 Strains of 2018.
The huge popularity of Auto Critical Orange Punch allows these autoflower seeds to be produced in large quantities. These savings are passed on directly to Dutch Passion customers.
Even though this is one of the best performing autoflower strains it is also one of the most affordable in the Dutch Passion collection. That makes it an ideal choice for anyone seeking a budget priced greenhouse cannabis strain. Auto Critical Orange Punch is one of the best autoflower greenhouse strains. She is part of the multi-cannabis cup winning Orange Family of cannabis seeds.
|Auto Critical Orange Punch makes the 2018 High Times list of Top-10 strains|
When to start cannabis seeds in a greenhouse and how?
The precise timing of your greenhouse grow will depend on your local climate as well as the presence/absence of greenhouse supplemental heating and lighting. With professional heating and lighting supplementation cannabis can be grown in a greenhouse all year round. Many USA professional growers do just that!
For most hobby growers, a greenhouse extends both the start and end of the grow season by a few weeks. It does this by protecting the plants from the worst of the weather. This allows you to grow perhaps a couple of successive auto crops in the same season, or a crop of photoperiod feminised seeds.
With a greenhouse you may be able to grow strains which simply would be unable to grow well (or complete bloom) at your latitude without a greenhouse.
Many greenhouse growers germinate and start their seeds indoors under artificial lights under optimised conditions for a couple of weeks before putting outdoors in the greenhouse. You may wish to use a greenhouse heater if night time temperatures are still between 5-15ºC (41-59ºF).
Growing cannabis outdoors or in greenhouse when night time temperatures can approach freezing is never optimum, heating is always helpful. In general, greenhouse growers can get their seeds going in a heated greenhouse before the last outdoor frost of spring. Normally, outdoor growers wouldn't risk putting plants outdoors without protection before the last spring frost has passed.
The best greenhouse cannabis strains are easy to grow
You don't need much experience to get great crops of top quality greenhouse cannabis. All you need are some good greenhouse strains, moist/nutritious soil and a clean greenhouse. The genetics do all the work for you! You just need to ensure sufficient water and the occasional supplemental feed.
If your local soil quality is poor you can supplement it with some supermarket/grow shop soil and nutrients. Slow release organic nutrients from companies like BioTabs are a great way to make growing even easier!
Just a few cannabis seeds in a greenhouse can produce sufficient cannabis to last you all year. It’s also an enjoyable and rewarding hobby for the summer. If you grow some greenhouse cannabis strains this year, choose the best cannabis seeds you can buy and have fun!