Gardener’s To-Do List for April

April To-Do List for Zone 4

• When the soil has warmed and dried, plant cold-tolerant crops, such as peas, spinach, lettuce, radishes, and onion.
• In flowerbeds, plant lilies, primroses, and lilies-of-the-valley.
• Plant raspberries as soon as possible, but wait until the soil has begun to warm before planting strawberries.
• Dig and divide perennials, such as daylilies and irises.
• Indoors, start tomato seeds if you plan to set them out under protective covering next month.
• Start broccoli seeds indoors for an early crop—but don't delay; soon it will be too warm.