Poinsettia plants, popular during the winter months, are considered a holiday plant. You can plant your poinsettia outdoors so it will bloom after the holidays are over. The plant will grow in well in a temperate climate in USDA zones 10 to 12 where there are not any hard frosts. Once you select a permanent location for your poinsettia, you can plant it to brighten up your lawn or garden.
Place the plant outdoors to acclimate it. Place it outside in temperatures above 12.8 degrees Celsius at night.
Select a southern exposure location that receives partial sunlight. This will protect the plant from cold rains and wind. Plant the poinsettia outdoors once the danger of frost has passed.
Dig a hole larger than the poinsettia pot with a shovel. Remove the poinsettia from the pot gently by placing the pot on its side and squeezing the sides. Adjust the soil so that ½ inch of the root ball remains above the surface.
Fill the hole with a light potting mixture that is slightly acidic.
Water the poinsettia to keep the soil from drying out.
Fertilise the plant every two weeks with an all-purpose fertiliser until the arrival of the first frost.
Prune the poinsettia back to 8 inches in height in early April.
Cover the poinsettia with a box in October so that it receives 14 hours of night. Remove the cover in the morning for 10 hours, and continue to cover and uncover the plant so that it will blossom next year. Keep the plants covered during frost with fabric.