Cold Climate Gardening . Gardening Tips . Plant Care
Winter Sowing in Zone 4: Your Secret Weapon for Early Spring Blooms
Start winter sowing in Zone 4 between late December and early February, when your containers can freeze and thaw naturally outdoors. This method bridges the gap between starting seeds indoors under lights and direct spring sowing, giving you earlier blooms and stronger seedlings without monopolizing your kitchen counters.
Fill recycled milk jugs or clear containers with moistened seed-starting mix, sow cold-hardy perennials and hardy annuals directly on the surface or at their recommended depth, then seal the containers and set them outside in a protected spot where they’ll receive …
