So I bought a bag of miracle gro seed starter mix. It’s just peat moss, so I thought. I germinated 2 seed, paper towel method. when they sprouted a tap root, I put them into solo cups with a 50/50 mix of perlite and seed starter mix. Both of the seeds made it to the top of the soil then stopped before the husks came off. And they just stayed there. So, being the curious person that I am, I gently pulled the seedlings out of the medium. They came right up. No resistance at all! When I looked at the tap roots, the ends were curled up and did not look happy. Now I was really curious, so I looked at the bag of starter peat moss, and low and behold, the stuff is enriched with miracle gro food. So this just leads me to believe that the SEED starter "mix" is too hot for the seedlings. WTF. has anyone else had any experience with this stuff? I have 2 more seeds germinating now and they will be going into a 50/50 coco/perlite mix this time. I already have 2 in there that just started veg. About 3 weeks old and started the training on them last night. These two were started in used/depleted soil, basically inert soil. so there was no way they were going to burn. Now they are in miracle gro cactus, palm, citrus mix at about 70/30 soil/perlite and happy as heck! The food that is in this mix isnt the "feeds for 6 months" stuff. Just enriched with the nutients outa the bag. And the ratio is 0.6-0.2-0.4 so half of that is 0.3-0.1-0.2 which is found to be the optimum ratio for cannabis (3-1-2 or so I have read)
so far under 4 x 32.5w cfl 2700k 2600lm each and 1 x 23w (I think) 5000k just for spectrum diversity and 20/4 light schedule. I have 4 more 32.5w bulbs for flower.
Help where do I start!
Help! Where and how do we start?
Cannot grow Rosemary, Parsley or Tarragon in outdoor planters. Help!
Growing a japanese maple bonsai tree and need advice!
We have found that germination is extremely poor for most of our varieties and the ones that are growing are not growing well at all! Last year was not the case and the only difference we can think of is the starting medium.
I think the problem is that potting mix is generally meant for grown plants in pots, not seedlings. As plants in pots have less soil to gain nutrients from, a lot of brands infuse it with things like fertilizer and water-retaining ingredients. It’s also more dense in texture to pack more into a small space (ie, a pot), which can make it difficult for little seedlings to poke through. So it may not be the brand that’s the problem, but the fact that you’re using potting soil.
The temperature is the same, we start everything in the same room each year. Upper 60’s and low 70’s for soil temp.
The biggest problem with the standard Miracle-Gro nutrient formula is that it’s one formula for the entirety of the plant’s life cycle. Even if the standard Miracle-Gro plant food is decent for the first stage of your plant’s growth, it won’t be good for the budding/flowering phase. The ratio of nutrients your plants need changes drastically between seedling and full flower. Marijuana grows best with a nutrient system that accommodates their changing nutrient needs.
Miracle-Gro Slow Release Soil is Not Suited to Growing Marijuana!
Standard Miracle Gro nutrients contain too much nitrogen and not enough of other nutrients for your cannabis flowering stage, and as a result of the time-released nutrients, you will notice that your leaves in the flowering stage will get nutrient burn and your buds just won’t grow as big as they could. Learn what you can do to make sure buds grow as big as possible!
Do not use “Miracle-Gro” soil or any soil that has “extended release” nutrients for growing cannabis. These types of soil will continue to release nitrogen to your plant roots for up to 6 months. This can cause deficiencies or burn your cannabis plants in the flowering/budding stage, reducing your overall yields. I have seen growers successively grow cannabis in Miracle Gro, but many of them struggled with nutrient problems in the flowering stage (like the following) even though plants were healthy throughout the vegetative stage.
There’s nothing inherently wrong with Miracle-Gro nutrients, and if you’re willing to learn about nutrients, you can use the various different formulas and get a cannabis plant to grow. For example if you’re using regular soil, you could use the standard Miracle-Gro formula for vegetative, and their “bloom” version for the cannabis flowering stage.