i got a care sheet from kammerflage kreations that this is what is says
Due to pesticide and fertilizer use in most plant nurseries, whenever you introduce a new plant to your animal's enclosure, there are some preparation steps to take beforehand. Many nursery's and garden centers use heavy-duty pesticides to protect the plants but these same pesticides may prove fatal to your chameleon if ingested. Make sure they are removed!
Step 1: Take a clean bucket and fill it with a squirt of antibacterial soap and water. Create a soapy solution. Invert the plant "head down" into the water and swish around. Let the plant sit for 3-5 minutes.
Step 2: Rinse the plant thoroughly so that any soap solution is removed. Repeat steps 1 and 2 a second or third time.
Step 3: The potting soil the plant originally comes in may contain fertilizers and soil additives that could be detrimental to your animal. Crickets often go into the potting soil of the plant and if your chameleon shoots for the cricket, you don't want him/her to draw back nitrate fertilizers along with their prey. A simple way to remedy this is to purchase a small bag of "Super Soil" (without conditioners) and replace the top 3-4" of soil in the plant container.
Once your plant is properly cleaned and the topsoil is replaced, you can rest easy that it's now ready for a new home with your chameleon.