When to harvest sativa-dominant cannabis strains Lastly, flowers that are harvested when 80-100% of the trichomes have turned amber induce a heavy, sedative, numbing effect. Once they're fully ripe, however, ( 30% of amber trichomes) they will deliver a more relaxing, slightly sedative effect that soothes the muscles and promotes sleep. When indica hybrids are harvested shortly before they reach full ripeness - 15-20% of amber trichomes - the effect is relaxing and slightly invigorating. The effect, however, varies greatly depending on how ripe the plants are when you harvest them. Generally, they are very resinous and deliver a relaxing, soothing effect, as is the case with Bubba Kush, White Widow, Shark Attack, Critical + and Purple Afghan Kush, among others. Indica-dominant strains flower fast (in a maximum of 7-9 weeks) and form highly compact, dense flowers, to the point that sometimes the weight is disproportionate in relation to the size. When to harvest indica-dominant cannabis strains If you want your flowers to deliver an invigorating, slightly euphoric high, then you should harvest when 15–20% of the trichomes have turned to an amber colour - this applies also to indicas - but if you're after a relaxing, narcotic effect that promotes sleep and helps you unwind, then wait until you have 80–100% of amber trichomes. The ripening stage will be over when the flowers are bulky enough and have produced a significant amount of resin - even on the leaflets - when the pistils no longer reproduce and when the flowers stop developing. It is important that all strains, whether indica, sativa, autoflowering or CBD-rich, are fully ripe before harvest, which you can check by looking at the appearance of the resin trichomes in flowers. One good way to exactly determine the ripeness level of the flowers is to analyses the trichomes under a magnifying glass with built-in light.Īs flowering progresses, these changes become increasingly apparent, and flowers start to form the first resin trichomes. At the beginning of flowering, from week two or three - after changing the photoperiod to 12/12h indoors, or when the days become shorter outdoors and bloom occurs naturally - you will see that the white pistils of flowers start to develop and become denser, while the calyxes grow in number and get gradually puffier. This involves being able to tell if the flowers are fully developed and have reached maturity. Knowing exactly when your plants are ready for harvest is a key aspect of cannabis growing. How to determine the level of ripeness of your cannabis plants
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