Growing flowers in a green house will require some necessary supplies. The starter cups, seeds, soil, vermiculite and a tray to hold the cups is required to start the flowers. The starter cups can be little plastic yogurt containers or cup trays from a gardening shop. The containers need to have drainage. If using the yogurt containers, punch holes in the bottom for drainage.
Place the soil and vermiculite into the containers and add at two to three seeds per container. The soil should be rich in nutrients such as potting soil or a starter kit for seeds that can be found at a garden shop. Make sure the soil reaches the tops of the containers. The depth that the seeds are planted will be found on the seed package. Lightly water with a spray bottle. Keep the seeds wet until they germinate.
Place the containers in a brightly lit area where they will have sunlight or artificial light. Grow lights will work in a green house on the darker sides of the house. The best place for the new seedlings is on the sunniest sides of the greenhouse.
Keep the temperature of the green house between 68 and 70 degrees. Turn the containers daily as the seed start to grow. This will ensure that the flower grows straight up and not off to the side where the sun is hitting it.
When the seedlings reach two inches, transplant into different containers to grow larger or thin out the exiting container so the healthiest flower can grow. Continue to keep the temperature of the green house warm and turn flowers daily until ready to plant outside.