Allowing time for delivery, purchase seeds ready for germination as the rest of nature stirs in response to spring; buy late March and early April for a germination in April. Be part of an age-old debate among outdoor and indoor growers alike: Does the full moon and planting time have an effect on plant quality? Some say it doesn’t matter—cannabis is a very vigorous plant and will grow under any circumstances. Others claim that planting 4 days to a week before a full moon increases the germination rate and produces a more robust plant with more vigorous growth.
If you have the room, try comparing plants germinated 1 week after the full moon to others germinated 1 week before. Northern climates are typified by cooler average temperatures, shorter days, and shorter growing seasons. There are a number of species of cannabis that have been developed to thrive in the challenging Northern environment. Species with short flowering times or those with autoflowering genetics can be ready for harvest much sooner than many standard photoperiod strains. With cooler air and less evaporative sunshine, strains with a high mould resistance will get to full maturity with less susceptibility. Strains with a heritage in the mountains and a naturally high tolerance to cold will also do better than those with tropical heritage.
SUGGESTED STRAINS FOR GROWING IN NORTHERN CLIMATES. Indicas and indica-dominant strains are your friends in Northern Europe, as are autoflowering strains. Since the cannabis diaspora over 12,000 years ago, indicas have developed genetic characteristics dictated by their evolution in cool mountain regions with early, then intense winters, and short summers. Autoflowering strains have a number of advantages, with one of them being that an extra crop can be harvested per year, thanks to the ruderalis genetics. This subspecies evolved in Central Asia, where cold tolerance and early propagation opportunities were a distinct advantage. **Indica autoflowers get a double whammy of cold tolerance and quick-flowering genetics. SOUTHERN CLIMATES - HOT, DRY INTERIOR, AND WARM, WET & HUMID COASTAL CLIMATES. Southern climates are typified by warmer average temperatures, longer days, and longer growing seasons. Cannabis originally evolved in these types of climates before it was spread all over the world. There is something deep in cannabis genetics that makes it thrive in warm, sunny, and humid climates. All species of cannabis will respond with vibrant life in warmer and sunnier climates. Species that need a long growing season to reach maturity can be grown more successfully the closer to the equator you get. Grows in humid or rainy environments will benefit from mould-resistant varieties. Warmth always means more bugs, so strains with a combination of resistance to pathogens and insects are always the least troublesome. SUGGESTED STRAINS FOR GROWING IN SOUTHERN CLIMATES. Growers in hot and dry microclimates will be able to grow whatever they like really. Most sativas a very tolerant to direct sunlight, where other species will perform better when shaded. Contemporary sativa-dominant hybrids can be grown for all the sativa benefits, with flowering time sped up significantly. Autoflowers will stretch and fill out more under the more intense sunlight and longer days. All species will generally display larger overall size and volume, with more stretch during vegetation. Humid southern coastal microclimates still get the benefits of lots of sun. Humidity can be a challenge, especially during flowering when thickening flowers can become susceptible to mould and other pathogens. Mould resistance is usually a feature of heavy resin production, which has the added benefit of providing pest resistance. Choosing mould-resistant strains will prevent the heartache of bud rot, especially if an area gets sea mist, fog, and regular rainfall.
Artificially extending the daylight period of plants grown outside with supplemental lighting for up to 18 hours means that when natural springtime comes along, plants will already be substantially advanced, and in some cases—when there are facilities available—can reach 5–10 metres tall. This isn’t for everyone as it depends on a country's laws and having the space or the facilities to pull it off.
Nice to dream though—mmh, ten metre cannabis trees! Greenhouses, especially if you are allowed by law to grow weed, can be the best of both indoor and outdoor worlds. When protection from harsh trichome-withering weather and modification of the immediate environment and photoperiod are required, a greenhouse can be your best friend.