The top 10 cannabis strains for indoor outdoor cultivation in 2020

Since the outdoor season is coming and new strains are available in 2020, here at globalcannah, we want to put them in the spotlight and give growers some of the best buds they can get! In this article we will present the top 10 cannabis strains for indoor and outdoor cultivation. There are some classics, some new strains and of course categorized by their genetics! We will cover Indica strains, Sativa strains and Hybrid strains so all tastes will be covered!

With this article we try to provide our readers with some of the top cannabis strains in 2020 from our trusted partner! Those strains are popular and also have genetics of top shelf strains with amazing terpene profiles! This article is part of a series of articles that aim to promote new developments in terms of cannabis strains! Check out our review of cannabis strains suitable for anxiety and depression!

This article is split in three categories: Indica dominant, Sativa dominant and Hybrids!

Indica Strains

For the indica section, we have 3 beautiful strains, all of them feminized: Sensi Skunk, Hindu Kush and Purple Bud!

Sensi Skunk Feminized
Hindu Kush Feminized
Purple Bud Feminized

Sensi Skunk

Sensi Skunk Feminized cannabis seeds show how easy and affordable growing cannabis can be. Its citrus aroma differentiates it from other skunk strains. retaining the strong growth shape and high yields typical of Skunk.

Yes, these seeds also have a sativa part, but at its heart it’s a plant with typical indica attributes. Like its relatives, these seeds thrive both indoors under artificial light and outside in moderate climates. The short flowering time, robust nature and thickly structured, strong buds are all reasons why this strain is so popular. It’s never been easier to grow high-quality Skunk plants at such an affordable price! Like the majority of indica varieties, this cannabis strain is ideal for a Sea of Green (SOG). Growers who like a heavy, central cola, can try the Lollipopping method.

Sensi Skunk is a multi-award-winning cannabis strain. It took second place at the Copa de la Marihuana 2007.

Hindu Kush

Hindu Kush Feminized is a classic, pure indica with robust nature, compact growth and short flowering time (45 to 50 days). Also suitable for novices.

This original, pure indica comes from the Hindu Kush, a remote mountainous region between Afghanistan and Pakistan. This classic variety owes a number of attributes that are beneficial to growers to its origins in the mountains. Hindu Kush Feminized cannabis seeds produce plants with compact growth, a short flowering time (45 to 50 days) and medium yields. In the right hands, or given a longer growth phase, yields could be even higher. Grown in a moderate climate and given a long summer, the plants reach impressive heights.

According to “High Times” magazine, Hindu Kush from Sensi Seeds is one of the best 25 cannabis strains of all time.

Purple Bud

Purple Bud Feminized is a strain that produces mostly purple-flowering plants. The strain is a indica dominant hybrid of Dutch-bred Hindu Kush, Afghan-Jamaican, and Californian purple Kush. 

It’s easy to cultivate indoors or out, even in cold climates with summers that end quickly.  White Label’s Purple Bud Feminized cannabis seeds have been developed from the Hindu Kush range, which includes some of the most prized indica strains in the world. The plants are typically indica in growth structure, with sturdy, short stems and branches.

Purple Bud Feminized grows well indoors, and the Sea of Green (SOG) and Screen of Green (SCROG) methods are both good options during cultivation. The plants also respond well to topping, which creates multiple main stems and colas. It can be grown outside, in temperate and continental climates. When planted in early spring, in free soil, Purple Bud Feminized is capable of achieving considerable heights for a ‘compact’ plant, and is likely to produce an excellent harvest.

Sativa Strains

For the Sativa Strains section we selected also 3 Feminized strains! The strains are combining old one with new ones: Durban, White Gorilla Haze and Jamaican Pearl!

White Gorilla Haze
Jamaican Pearl


Durban Feminized is one of Sensi Seeds’ purest outdoor sativa strains. Its genetics originate from South Africa.   It’s an adaptable plant that can be cultivated in any location that offers from 8 to 12 hours of sunlight a day during the normal growing season. We created Durban Feminized cannabis seeds to produce a perfect outdoor sativa for growers of all experience levels. It’s quick, mould-resistant, and a great yielder, even in a disappointing summer!

Durban Poison is one of Africa’s most well-known cannabis strains. Durban Feminized produces distinctively sweet aromas and flavours, with strong top notes of citrus and aniseed. Plants with darker leaves often have an earthier, warmer scent while they’re flowering, which subtly shifts to coffee, sandalwood or even chocolate.

White Gorilla Haze

White Gorilla Haze brings together the world-class resin production of Gorilla Glue and the dreamy, soaring high of the finest Haze strains. This mostly-Sativa hybrid is fast-growing and productive with a shorter flowering time than its Haze pedigree might suggest. White Gorilla Haze feminized cannabis seeds by White Label were created through a three-way fusion of Amnesia Haze, the all-time great Silver Haze and the 50/50 Sativa-Indica hybrid from California known as Gorilla Glue.

This strain can be grown either outdoors or indoors! In a hot, sunny Mediterranean climate, this strain can produce huge yields outdoors, as long as the local climate remains favorable throughout October. Indoors the seeds can reach full resin and yield production. The flavour profile of this strain, which remains subtle throughout cultivation and drying, is released when buds are broken up – a sharp Haze undercurrent with notes of coffee, pine and citrus.

Jamaican Pearl

With its fruity flavour and mood-lifting effect, Jamaican Pearl Feminized guarantees a good mood. Recreate the Caribbean in your lounge with this cannabis strain! This is one of the few tropical sativas that also thrives in cool climates.

Jamaican Pearl has its origins in a Sensi Seeds breeding programme which focused on tropical sativas. We have crossbred dozens of cannabis strains to get a Jamaica weed that will grow in northern climates, and even finish flowering in a rainy Dutch summer. Jamaican Pearl is a hybrid between Marley’s Collie and Early Pearl with a sativa content of 85%. It twice took the top prize at the prestigious Highlife Festival.

The strain has great results outdoors, but it can also be grown indoors! It just tends to get a bit to high so certain growing techniques can be helpful!

Hybrid Strains

The Hybrid Strains section has some golden ones! We kept the best for the end, and we hoped you are still here! The Hybrid Strains are: Black Harlequin, Guava Jelly and Girl Scout Cookies!

Black Harlequin
Guava Jelly
Girl Scout Cookies

Black Harlequin

Black Harlequin Feminized is an indica / sativa hybrid.  Its formidable genetic pool includes our own Black Domina, a Cannabis Cup-winner; and Harlequin, a strong CBD strain from the USA.

With a THC / CBD ratio of 1:1, this high CBD content is noticeable in the effect, and the influence of the parent plants can be detected in the aroma and taste. The scent and flavour of the buds are woody and earthy, with a hint of floral lightness. The strain can be grown successfully in both temperate and continental climates, and also does very well when cultivated indoors, at any time of the year.

Guava Jelly

Guava Jelly buds are a colourful, sweet-smelling treat for the senses even before they’re consumed.  It is a vigorous strain and can deal with outdoor conditions, though it may require support from stakes or a trellis as its relatively slender branches may be weighed down by buds at the end of the summer.

The height of Guava Jelly can be easily controlled indoors by flowering plants quite small. As this strain will generally triple its height in the flowering stage, clones can be put into flower at 20cm to 30cm in order to achieve a final height under 1m. White Label Guava Jelly imparts a hugely powerful high from both its Indica and Sativa background. The first feeling reported by most users is a warm, positive body feeling inherited from its Kush and Skunk ancestry. This immediate effect is soon enhanced by the uplifting, energetic, electric high of Guava Jelly’s Sativa side.

Girl Scout Cookies

All of the parent plants in this strain’s background are noted for being tough, low-maintenance, productive varieties with high THC content. White Label Girl Scout Cookies retains all these qualities making it an easy cannabis seed-strain for novices and an ideal choice for more experienced growers who can bring it to its full, impressive potential. 

The potent Kush background and higher CBD production of Girl Scout Cookies makes it a popular strain in US dispensaries. Many users seek it out for more robust medicinal effects such as pain relief, appetite stimulation and combating nausea. Recreational users value GSC for both its total-body relaxation and stimulating, talkative Sativa high.

Outdoor and greenhouse-grown plants can easily reach 200 or 250cm in height by their October harvest time. Indoors, cuttings can be flowered at around 30-40cm in order to attain a final height of 100cm. 

With all this being said, I guess now you have your options for the 2020 cultivation! Pick carefully, and give special attention to those plants and they will deliver quality buds for you, your family and friends!

Cannah is made possible with your support! If you consider that our articles are helpful for your purpose and delivers the Information that you need, please also visit our Patreon page and check what we are willing to offer for your contribution!Become a Patron!