What to Know About Planting a Royal Poinsettia

They Are Not Poisonous

• Despite rumors to the contrary that have persisted since 1919, poinsettias are not dangerous or poisonous if consumed. If you had been concerned about any potential dangers, this may open up new options for you regarding where to plant -- you no longer need to decide where to plant based on whether children or animals might have access to the poinsettias.

They Need Darkness

• Though poinsettias need ample sunlight throughout the day, they also require periods of total darkness in order to thrive. It is only because of these dark periods that poinsettia flower buds are able to bloom, so make sure that you plant your poinsettias in an area that is completely dark at night. If these dark periods are interrupted by light, even briefly, it can compromise the plant's ability to flower and either delay or completely prevent blooming.

Soil Matters

• Poinsettias require moist soil to thrive, but you must be careful not to overwater them. Check the soil with a light touch -- if it feels dry, you may need to water it. Do this frequently, as a dry environment will make the plant lose leaves. As you monitor the soil around your poinsettias, you may also need to fertilize. This not only facilitates rapid growth, but may also help provide some of the nutrients like calcium that a poinsettia needs.

Timing is Everything

• Poinsettias are sensitive to temperature, so you have to be careful that you do not plant them too early. You must wait until any potential for frost has passed, as frost will kill the plant. Temperatures below 50 degrees Fahrenheit can also injure the plant and temperatures that fluctuate dramatically are unhealthy as well. Wait until spring to plant your poinsettias and they should grow better than they would if you planted in late winter.