Van Helmont
van helmont
Jan van Helmont
The gas that comes out of your mouth that will help plants is carbon dioxide. Plants use carbon dioxide and release oxygen into the air.
Only certain plants grow toward light ex. sunflowers some plants like tomatoes grow like the topsy turvey thing hangs tomatoes upside down they grow down not up and most time the light comes from the opposite way they are growing
Medicine comes from plants!
Most photosynthetic cells in plants are found in the leaves.
Jan van Helmont
Biologists study life; they can be considered to be of two kinds: zoologists study animals, and botanists study plants.
The light spectrum from an incandescent (a bulb) is closer to the spectrum of the sun than what comes from a fluorescent.
There are special fluoro tubes that are made for growing plants. One brand that comes to mind and does a reasonable job, is easy and reasonably cheap to get here in Australia, is "Growlux".
WATER
penicillin comes from mold. A scientist was experimenting with bacterial cultures when they were ruined by mold growing on them and he asked why. The result was penicillin. Other scientists had noticed the same thing years previously but had not asked why.
Hydroponics is the growing of plants in a solution without the use of soil. Hydroponics is a method of growing plants using mineral nutrient solutions, in water, without soil. Plants are grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, mineral wool, or coconut husk.
Because the gene for luciferase, which comes from an animal, can specify a trait in a plant.
The Creeping Flesh
winter; less daylight, colder temperatures, most plants either die or go dormant. spring; more daylight. temperatures moderating, plants begin or resume growing. summer; most daylight, warmer temperatures, plants growing and maturing. autumn; daylight lessening, temperatures moderating to cooler, plants mature or begin to go dormant.
Tomato plants can be pruned by removing the "sucker" stems that grow between the main stem and the side stem. You will notice they look like a small leaf that starts growing into a stem. It comes out at a 45 degree angle and is easy to spot.
The fastest growing flowering plants are the annuals. Some of the more common annuals are: -Cosmos -Marigolds -blue flax -Sunflowers -Alyssum -Poppies -Snapdragons -Corn cockles One of my personal favorites which grows in a period of 6-9 weeks is the Zinnia flower! ;) Check it out, it comes in many colors! <--- Added to the original answer, i couldn't resist :P