Seedling to Vegetaive Stage? How can you tell?

Normally around the second or third set of leaves,.......you can "just tell" it is no longer a baby and is growing like a child.

This is an arbitrary line in the sand of minimal use... I consider it full vege when i have reacted to the plant and providing 100% of light power relative to hours of opearation (target DLI after adjustments based on plant growth). More accurately, i took notes and paid attention and have a standard procedure to avoid stunting and such.. but it's comes from systematic trial and error. if it can handle full power light, it needs full diet to match that new metabolic rate inside the plant. So, some grey-area label has limits to it's usefulness.. it's just a general concept and not a line drawn in stone. Worry about how the plant is behaving, and react to that...

To determine when your plants have transitioned from the seedling stage to the vegetative stage, you can look for several signs and visual cues normally within 2 weeks from seed Your plant is in vegetative stage darling. 1. **Leaf Development**: In the vegetative stage, the plant typically starts developing more sets of true leaves, distinct from the initial cotyledon leaves that seedlings first sprout. 2. **Root Growth**: As the plant enters the vegetative stage, its root system will start expanding and becoming more established in the growing medium. 3. **Height and Growth Rate**: Plants in the vegetative stage will show increased vertical and lateral growth compared to seedlings, indicating their growth spurt. 4. **Stem Strength**: The stems of plants in the vegetative stage will start to thicken and become sturdier to support the plant's upward growth. 5. **Node Development**: Nodes are the points on the stem where leaves, branches, and buds grow. In the vegetative stage, you will start to see more distinct node spacing as the plant matures. 6. **Light Requirements**: As the plant enters the vegetative stage, it will require more light to support its increased growth and photosynthesis. By observing these indicators, you can better gauge when your plants have transitioned from the initial seedling stage to the vigorous vegetative phase of growth.