Three cotyledons

It’s rather uncommon for this to happen but it is a mutation. It will probably grow normally, keep a watch on the side branches for weak ones. When it flowers out the bud could get larger because of this genetic mutation.

The presence of three cotyledons instead of the usual two is a mutation known as tricotyly. It’s generally not an issue for development, in some cases it can even lead to more vigorous early growth thanks to the increased leaf surface area for photosynthesis at the seedling stage. Genetically, it doesn’t necessarily indicate instability, it’s simply a phenotypic variation. I’d recommend keeping an eye on its internode structure and lateral branching pattern as it progresses through vegetative growth. Some tricotyly seedlings may develop slight asymmetry in the main stem, but most end up growing like a normal plant and respond well to training techniques such as LST or topping.🎅