We tend to say: as soon as you receive them!
Media love to look for the freshest, newest products, and when a lot of monthly glossies have a lead-time as long as 3 months, it’s highly important for them to know the products they’re sending to print are still in store by the time their mag hits the shelves.
Make sure you’ve got your current and upcoming collections showcased on Flaunter, and do so as soon as your shots return from the photographer. Reminder to ask your photographer for the highest image resolution - 300dpi. This resolution works for both print & online media :)