VEGETABLES / COLLARD 65 days. This old favorite has smooth, dark-green leaves with light-green veins. Very slow to bolt. 18”-24” tall plants with loose, heavy heads on short stems. From E&R Seed. $3 Add To Basket Listed In: 2020, 2021, 2022, 2023, 2024, 2025 New Jersey USDA Hardiness: 7 View Profile & Listings