The only time it's annoying is if there is not yet a photo of the plant in place. In that instance the ad appears in the slot where the photo normally is and if is a plant related ad, it gets a little confusing. I'm not sure if this will show for you but here's one example of a plant without a photo, not sure what you might see but here's the link:
Cumberland False Rosemary (Conradina verticillata)
(can't do a screen shot with this iMac)