7 signs to watch out for
You want your plant’s leaves to be a medium green color. Think somewhere between a slightly darker lime green and slightly lighter pine/forest green. As the plant matures it’s normal for some leaves to die, especially when you move into late flowering. But anytime you see spots or upper and middle leaves changing colors you most likely have a problem that needs to be addressed.
You’ll want to watch and make sure your leaves’ tips don’t curl under or up as this can signify issues related to over- or underwatering and/or temperatures.
Cannabis is obviously a skunky plant with a rich palette of aromas, but you want to always be on the lookout for funky or rotting smells. It’s normal for the plants to smell dankier the closer to harvest, but it’s always good to keep an eye out for bud rot and mold.
It will take a couple grows before you develop an eye for growth rate and like humans cannabis growths faster or slower depending on age. It’s always good to see if there are grow logs on the strain you’re growing, especially if they are video logs. This is why it’s a good idea to pick a popular strain the first few time you grow.
You’ll want to watch for stretching and want the length between the nodes to stay fairly close together. Sativa strains will have more space of course, but certain deficiencies actually make the plant stretch. As well this could mean your lights are too far away. A tall and skinny plant is at risk of injury.
Always keep a lookout for bugs. An insect or two is usually ok, I will always get a ladybug which I leave because they eat insects that can actually hurt my plant. Spots and eggs on the bottom of leaves are a giveaway and you’ll want to keep an eye out for those.
Have an eye out for mold because even if you don’t smell it, it may still be there. You’ll have to worry about this in flowering because the flower will get dense and hold a lot of moisture. In veg, it’s recommended to have a fairly high, humidity however. It’s always good to keep an eye out for powdery white mildew both on your plants, as well as on your grow container and in your tent.