High quality organic soil that is “light” when it comes to pre-added nutrition works best.
Feminized- and regular cannabis varieties give growers the possibility do decide when the vegetation period ends, and the flowering period starts. This is why transplanting “feminized” seedlings is not such a big concern, in contrast to autoflowering strains. When a few days are lost due to stress recovery of the plant, growers simply increase the time-span of the vegetation period and compensates the loss of growth. Internet forums and grow reports can help to get you an idea what works best in terms of pot size(s) matching your setup.
Carefully place your cannabis seeds between wet paper towels and place them in a sealable plastic container. Aim for high humidity levels inside the container, temperatures between 20-25 °C, and moist, but not overly wet paper towels. Check moisture and humidity levels regularly. Don’t completely close the container and allow some air exchange. This happens at a dark place.
It’s not necessary to use your powerful HPS or LED the first 10-14 days. CFL’s with a blue light spectrum (daylight/coolwhite) will get you very good results. Either built your own light fixture using T5/T8 sockets or buy 23-30W CFL’s with the standard European E27 lamp socket. Compare different bulbs and choose the ones with highest lumen output.
Mastering the delicate seedling stage is crucial to grow strong and healthy cannabis plants. Read this blog for further information on how to cultivate cannabis from seed to seedling.
There are basically two different techniques that are commonly used to germinate cannabis seeds.
Simply drop your seeds into a glass of drinking water and wait 24-48 hours until seeds have cracked. Wait until you see the first few millimeters of the root, and make sure water temperatures are between 20-25 °C. Place your cup somewhere light doesn’t reach it.
After seeds have germinated, it’s time to plant them into the pots. Plant the seeds just 3-5 millimeters below the surface of the earth, ideally with the tiny root facing downwards. This can help to avoid time-loss and seeds don’t have to figure out how gravity works.
Growers of autoflowering varieties will get best results when they plant the seed directly into the final pot, and need to pay very close attention to seedlings for the first three weeks. Mistakes in the vegetation period of autoflowering strains have fatal consequences, meaning low yields. Depending on the strain and growing method, pot sizes ranging from 5-15 liter can be used. The size of the pot will have an influence on the size of your plants, on yields, and on the frequency you water your plants. Tip: Airpots allow more oxygen to get to the root system and will boost vitality and final yields.
Are you concerned about the delicate seedling stage when growing cannabis? Don’t be! Follow these 3 steps and cultivate healthy seedlings.
To plant a seed the root from the seed must be at least 0.5 to 1.5 cm long. Use tweezers to put the seed in the dimple. The root sting (germinated root from the seed) should point downwards. Is the seed stuck to the moist paper towel? Don’t pull the seed but spray the seed with water again. You will see that the seed is now easily released.
After the germination process of your cannabis seeds the real journey starts. It’s time to plant your weed seeds!
Have you chosen the desired pot? Then fill the pot ¾ with moist, loose and airy potting soil.
To plant your seeds into the soil you need the following attributes:
Not sure which pot to use? Check the table below!
To choose the right pot for your grow it’s important to determine the preferred plant height before planting your seeds. Large plants won’t grow in small pots as small pot’s don’t provide enough space for root development. As a general rule every 5 liters is equal to 20 cm of plant-height. Although this rule doesn’t apply to all species, it’s a useful indication for the final plant height.
The dimple must be 0.5 to 1.5 cm deep. Make sure the dimple does not get deeper than 1.5 cm and not shallower than 0.5 cm.
Make a dimple in the potting soil. You do this simply by putting a pencil in the ground. The dimple needs to be about 0,5 – 1,5 cm deep.
For a healthy growth, roots have to be prevented from drowning. It’s therefore extremely important to choose a pot with drainage. Drainage holes on the underside of the pot will make it possible for the water to escape.
Would you like to know how to properly plant weed seeds after germination? Read the information about this subject on Weedseedsexpress