How do plants know when to grow?

Answer 1

In most this is through an effect called photoperiodism. Since the earth wobbles on her axis the ratio of daylight/nighttime changes in areas away from the equator over the course of the solar year. Therefore, by measuring the amount of dark in a 24 hr period, a plant can effectively tell what time of the year it is. Experiments using artificial lighting have verified this temporal sense in a great number of species. This is not the only way plants orient themselves in time, however. The number of chills the plant has experienced can also be a factor and is the reason you will often see early blooms after mild winters.

Answer 2

Plants respond to various environmental cues such as sunlight, temperature, and nutrient availability to trigger growth. Hormones like auxin and gibberellin play a role in regulating growth processes, influencing cell division and elongation. Additionally, genetic factors and internal signaling pathways help plants coordinate growth and development in response to their surroundings.

Answer 3

You will konw that the plants grow because in a couple of days it will b bigger than what you had at first.

Answer 4

No they dont, they move because of the movement of growth hormones caused by gravity and temperature

Answer 5

Plants follow the way that their light comes from, and since that's usually sun, they grow upwards.

Answer 6

when they feel a warm air or they can feel sun rays beaming down on them

Answer 7

how do plants know when to grow in spring

Answer 8

by the tempature