7. Harvesting

Harvesting is the most rewarding part of the growing process for many growers. Watching the plants grow over several months is fascinating, but reaping the fruits of your labor is the pinnacle of the experience.

The flowering phase of the growing cycle typically lasts between 6 and 12 weeks. After that, it's time to remove the buds. This shouldn't be done too early, however, as harvesting too early would prevent the buds from fully ripening. But you shouldn't wait too long either.

One of the best ways to determine if your buds are ready for harvest is to look through a magnifying glass. Using a jeweler's loupe or a digital microscope, you can closely examine the trichomes (crystals on the buds). If around 60% of the trichomes are milky and some are beginning to turn amber, the ideal harvest time has arrived. Transparent trichomes indicate immaturity—the plant still needs some time.

Another ripeness criterion is the pistils—hair-like structures on the buds. These hairs change color from white to red over the course of flowering. to orange-brown and are a visual sign of the ripening process.

Yellowing leaves in the final stages of flowering also signal that the plant has used up its nutrients—a natural process. Many growers rinse the plants with pH-neutral water in the last two weeks before harvest to remove fertilizer residues and improve flavor.

8. Drying & Curing

After the flowers have been harvested, the essential step of drying and curing begins. Only through careful post-processing can high-quality aromatic cannabis be produced. The drying and curing process not only ensures better shelf life, but is also crucial for flavor, effect, and smoking quality.

Wet Trimming

Wet trimming involves trimming the flowers immediately after harvest while they are still moist. This removes the small sugar leaves around the buds. This method saves space, is easier to implement, and prevents excessive moisture accumulation during drying. However, trimming in this state is often a sticky affair, as the resin adheres strongly to the fingers and scissors. A pleasant side effect: scraping the sticky resin off the scissors creates what's known as scissor hash, which gives a small taste of the subsequent effect.

Dry Trimming

Dry trimming involves allowing the entire plant or branch to dry completely before trimming the flowers. This method requires more space and time, but is particularly gentle on the material. The flowers are usually hung upside down in well-ventilated, dark rooms at 18–21°C and approximately 50–60% humidity. Once they are sufficiently dry, the sugar leaves are carefully trimmed off. Advantage: Less sticky tools, a gentler process. Disadvantage: Dry trimming is more labor-intensive and can produce less visually uniform results.

Curing the flowers

Trimming is followed by curing – an essential step in refining the flowers. During this process, excess moisture, sugar residues, and chlorophyll break down, improving the taste, aroma, and smoking characteristics. It also significantly increases shelf life.

The fully dried buds are now placed in airtight jars – ideally preserving jars – and filled only about two-thirds full to allow air exchange. For the first 1-2 weeks, the jars should be opened (aired) daily and the buds gently moved. This allows excess moisture to escape and prevents mold growth. Pay particular attention to fresh air supply, consistent room temperatures of 18-21°C, and moderate humidity of around 60%.

After the first two weeks, ventilation can be reduced to every two to three days. The entire curing process ideally takes four to eight weeks—some growers even let their harvest mature for several months. The longer the buds cure, the softer, more flavorful, and aromatic the final product becomes. Well-cured cannabis flowers ensure a smooth, scratch-free smoking experience and bring out the full terpene profile.

The curing process makes the difference between average and premium cannabis— Invest enough time here to maximize the full potential of your harvest.

9. Avoid Common Growing Mistakes

Even experienced growers make mistakes from time to time – especially during hectic periods or due to insufficient preparation. Here are the most common growing mistakes you should avoid:

• Overwatering: Watering too often or too heavily leads to root rot. Ensure balanced watering and good drainage.
• Nutrient Overdose: More fertilizer does not necessarily mean a higher yield. Overfertilization causes nutrient burn and can inhibit growth.
• Incorrect pH: An unbalanced pH in the substrate prevents nutrient uptake. A pH between 6.0 and 6.5 is ideal.
• Inadequate ventilation: Heat and humid air promote mold and pests. Rely on air circulation through fans.
• Insufficient light: Strong, even lighting (LED or HPS) is essential, especially for indoor grows.
• Lack of training: Without methods like LST, topping, or ScrOG, yield potential often remains untapped.

10. Indoor vs. Outdoor Cultivation

Depending on your location and availability, you can grow cannabis indoors or outdoors. Both methods have advantages and disadvantages:

Indoor cultivation

• Full control over climate, lighting, humidity, and nutrient supply
• Discreet and possible year-round
• Suitable for autoflowering strains, feminized seeds, or F1 hybrids
• Higher costs due to electricity, lights, and equipment

Outdoor cultivation

• Cost-effective - no electricity or expensive lights required
• Depending on climate, hours of sunlight, and weather conditions
• Suitable for robust, resilient outdoor strains
• Higher yields possible, but higher risks from animals, pests, or theft

11. Practical Tools for Growers

With the right equipment, you can significantly optimize your grow. Here is a list of useful tools for every grower:

• PH and EC meters: For monitoring water quality and nutrient solutions
• Timers: For precise light cycles in indoor grows
• Dehumidifiers: Indispensable for preventing mold, especially during the flowering phase
• Circulation fans: Promote air circulation and strengthen plant structure
• Grow tents & Reflectors: For efficient use of space and light output
• Drying nets: Ideal for post-harvest drying

These tools aren't absolutely necessary, but they make the difference between a good and a professional grow!

12. FAQ - Frequently Asked Questions about Cannabis Cultivation

How long does the entire cannabis cultivation process take?

From germination to harvest, the entire cultivation process can take between 10 and 16 weeks - depending on the chosen strain (autoflowering or photoperiod) and the environmental conditions.

Which cannabis strains are suitable for beginners?

Autoflowering cannabis seeds are particularly beginner-friendly. They don't require any adjustment of the light cycle and are more resistant to typical beginner mistakes. Recommended strains: Northern Lights Auto or Gelato Auto.

How much light do cannabis plants need when grown indoors?

During the vegetative phase: 18-24 hours of light per day. During the flowering phase for photoperiod plants: 12 hours of light and 12 hours of darkness.

Which soil is best for cannabis?

The best soil is loose, well-drained organic soil, e.g., pre-fertilized soil with worm castings or coconut. Ideal for beginners: Light Mix soil.

What to do about yellow leaves?

Yellow leaves can indicate overwatering, nutrient deficiency, or an incorrect pH level. pH control and adjusted nutrient application can help.

How do you determine the ideal harvest time?

The perfect harvest time is indicated by the trichomes (resin glands). When approximately 70–90% are milky and partially amber, the plant is ready. A magnifying glass helps with the precise assessment.

How do I store dried cannabis properly?

In airtight jars, cool, dry, and protected from light. The aroma and potency are thus preserved for months.

What is the optimal temperature in the grow room?

Growth phase: 22–26°C, flowering phase: 20–25°C. Temperatures that are too high can negatively affect terpene quality.