Catkins are everywhere! What's a catkin? They are the pollen producing (male) parts of wind pollinated trees like alder, willow, and cottonwood. You can see them dangling from the branches, but you can also what causes brown tips on roots in water propagation and how to prevent root rot? Robert Plant's Love Affair With A Groupie Ended With A Tragic Loss The Perfect Tomato Plant To Grow Indoors In Winter In A Window! Water in Saudi Arabia: Desalination, Wastewater, and Privatization USSBC Il ne faut pas mettre de plante dans sa chambre' : vrai ou faux ?