Biography of Durham's Finest Tree* No. 10: Parkwood Southern Catalpa ( Catalpa bignonioides) Extension Master Gardener Volunteers of Durham County SMOK Mag Grip Kit Free Smoke Vape & Smoke Shop Is Northern catalpa Safe for Children? Smok Mag Grip 100w Vape Kit Vapestore SMOK MAG Grip 100W TC Starter Kit Discount Vape Pen No these aren't giant tree green beans, but instead the seed pod of the northern catalpa. These bean like pods can grow to be 20" long and contain numerous 1" long seeds. #haverfordcollegearboretum #