There’s a good reason why cannabis is known as weed: it can grow and thrive in most parts of the world. However, some climates present growers with more of a challenge than others, and growing cannabis in regions with high levels of heat and humidity means coping with a few issues that just aren’t an issue elsewhere.
Think of hot, humid climates and you’re thinking of the tropics: Hawaii, South East Asia, Central America and sub-Saharan Africa. Warmth, sunlight and rainfall all year round make these regions ideal for growing many cannabis strains. However, growers in these regions face two particular challenges: humidity levels and the light cycle of cannabis plants.
• The light cycle
Cannabis plants produce their best yields under specific light conditions, usually with around 18 /24 period of light/darkness during their vegetative stage followed by 12/12 hours of light/darkness during flowering. Tropical regions receive 12 hours of light followed by 12 hours of darkness all year round. Luckily cannabis plants grown in these light conditions tend to respond rather like auto-flowering strains. This means that they will flower at a certain point of maturity and when they have developed a particular number of nodes rather than flowering being determined by the light.
• Humidity levels
Moisture levels are the other main concern. Tropical climates typically have one or even two rainy seasons a year, which can mean that plants grown outdoors are likely to be susceptible to mould and rot. The longer raindrops remain on the plant, the more likely it is that mould will develop. If covering the plants during rainy periods is not possible, growers should shake the plants after rainfall to remove as much moisture as possible.
Best strains for a hot humid climate
The upside of growing cannabis in a hot, humid climate is that once these issues are dealt with, you can expect to grow some of the biggest plants you’ll have ever seen. The strains that do well are mostly Sativas rather than Indicas. Sativa strains originated in tropical countries such as Thailand and Mexico so tend to flower on maturity rather than when triggered by the light cycle. Some of the best strains for a hot humid climate include:
The Super Silver Haze feminised strain is an 80% Sativa and 20% Indica hybrid of the Skunk, Northern Light and Haze strains. This variety has pale green leaves and sturdy buds with orange hairs and a lavish covering of THC crystals and can be grown either outdoors or inside. A little experience in growing is needed for the best results.
Growing Super Silver Haze
Indoors, the plants will reach a height of around 200 and will flower in about 10 to 11 weeks. This strain will thrive outdoors especially in a warm climate and is best harvested in the middle of October
Super Silver Haze is suitable for both SCROG and SOG growing methods. Indoors, expect yields of up top 600 gm per m2. Plants grown outside will produce massive yields of up to 1500gm per m2.
Taste, smell and effect of Super Silver Haze
The taste and smell of this strain recall fresh, fruity berries. High in THC, Super Silver Haze has a powerful amnesiac effect that almost instantly transports you to the higher sphere. The carefree, relaxed feeling lasts a long time and as the peak falls, your energy levels rise. Medicinally, this strain helps relieve stress, improve the appetite and in treating depression.
|Levels||21% THC / 0.15% CBD|
|Variety||20% Indica / 80% Sativa|
|Yield||600 to 1500 grams/m²|
|Flowering time||up to 70 days|
One of the best-loved and most powerful weed strains, Sour Diesel is thought to be a cross between Northern Lights, Super Skunk and 91 Chemdawg. With 30% Indica genes and 70% Sativa, this strain will give you excellent yields and can be grown either indoors or outside. This strain has a high resistance to mould and other fungi. Grown outdoors, It produces the best results in a warm climate or regions with warm summer temperatures.
Growing Sour Diesel
The flowering time of Sour Diesel is just 10 weeks. In the northern hemisphere, the best time to harvest outdoor grown plants is October (in the northern hemisphere). With its Sativa dominant heritage, the plant grows rapidly during the first month and growers tend to get the best yields with low-stress growing techniques. The Sativa ancestry also ensures dense, resinous buds and powerful chemical, spicy and acidic scents. Grown indoors, the plant can reach up to 160 cm. Grown outdoors with plenty of sunlight and water, Sour Diesel will stretch away and reach heights of up to 300cm. Growers who apply the SOG method can expect high-quality yields of up to 500 gm per m2.
Taste, smell and effect of the Sour Diesel strain
Sour Diesel is renowned for its pungent, acidic, earthy, herbal, taste and smell, with its overriding notes of diesel. Smokers enjoy a powerful happy, uplifting high that is followed by a period of energy and creativity, making Sour Diesel an ideal choice for daily use.
|Levels||19% THC / 0.4% CBD|
|Variety||30% Indica / 70% Sativa|
|Yield||400 to 600 grams/m²|
|Flowering time||up to 68 days|
One of the strongest strains available, Amnesia Haze feminised seed is an excellent choice for growing indoors or outdoors. This strain does require a little extra care and experience when growing but will reward you with big, high-quality yields.
Growing Amnesia Haze
The flowering time of Amnesia Haze can vary from between 11 – 13 weeks. This Sativa dominant (70%) strain can be grown in a greenhouse when the plants will remain compact. While the plants remain small, they will produce both large and small brown-green buds with a rich coating of resinous crystals. This strain will produce good yields of up to 650 grams per plant when grown by the SCROG or SOG methods.
Grown outdoors in hot, humid climates, Amnesia Haze plants will grow up to 200cm tall and give a yield of up to 700grams per plant. Harvesting is in late October. THC levels will vary depending on growing conditions but up to 20% THC content is common.
The taste, smell and effect of Amnesia Haze
Amnesia Haze offers sharp, sweet citrus flavours with a slight scent of ammonia. As its name suggests, this strain of cannabis can lead to short-term memory loss and can even cause hallucinations, though this is rare. It creates a euphoric, almost psychedelic feeling that boosts creativity but for some users, Amnesia Haze can be a little too strong.
|Levels||20% THC / 2% CBD|
|Variety||30% Indica / 70% Sativa|
|Yield||600 to 800 grams/m²|
|Flowering time||up to 77 days|
This Sativa weed strain has its origins in Durban in South Africa so is a natural choice for hot climates. Durban Poison strain was further hybridised by breeders in the USA and the Netherlands but is also suitable for growing outdoors in areas with shorter summers.
Growing Durban Poison
This Sativa cannabis is mould resistant and easy to grow, particularly when you grow it outdoors where it will grow tall – up to 2.5 metres. The plants also develop sturdy side branches. If you grow it indoors, apply SCROG techniques to control the height of the plants. Durban Poison will flower within 7 – 9 weeks when beautiful dark buds with a rich coating of resin appear.
Harvesting is in early to mid-Autumn, with excellent yields of up to 700 grams per m2.
Tip: check our feminized Durban Poison strain seeds
Taste, smell and effects of Durban Poison
The scent of Durban Poison is reminiscent of pine and it tastes of liquorice and anise, with sweet, spicy, and citrus notes. With its Sativa heritage and a THC content of up to 15%, Durban Poison gives a positive, pleasant high, improving focus and giving a long-lasting boost to creativity. It is a great choice for social occasions but can also be useful to consume when you need to focus on a task.
Autoflowering strains are amongst the easiest varieties of cannabis to grow but tend to be relatively small. Not Big Haze! This strain will grow quite large despite a seedy flowering time. With a genetic heritage of 70% Sativa, 20% Indica and 10 % Ruderalis, this strain blooms automatically and has excellent mould resistance. It is ideal for less experienced growers and for growing in tropical areas where light-triggered flowering strains would present a challenge.
Growing Big Haze autoflower
Big Haze autoflower will bloom in about 11 – 12 weeks., producing a high-quality yield of around 150 grams per m2. When grown outside with plenty of sunshine, the plants reach 1.5 m but if space is limited, it is easy to control growth either by low-stress training or by planting in a smaller sized pot.
Taste, smell and effects of Big Haze
Typically for a Haze strain, you will enjoy exotic tropical scents and a sweet fruity taste. With high levels of THC, Big Haze weed gives a euphoric, energetic feeling with only a mild effect on your body.