April is a transitional month for gardening, perfect for planting cool-season crops (lettuce, spinach, radishes), sowing hardy herbs, and dividing perennials. Focus on soil preparation, adding compost, and protecting early seedlings from late frosts. As temperatures rise, increase watering, apply mulch, and begin hardening off tender seedlings for planting later in the month.
Vegetables: Directly sow peas, carrots, beets, radishes, arugula, and kale. Plant broccoli, cabbage, and cauliflower transplants. Start warm-season crops like tomatoes, peppers, and cucumbers indoors.
Flowers: Plant hardy annuals such as pansies, snapdragons, and dianthus. Plant dahlia tubers, lily bulbs, and gladioli.
Herbs: Plant cilantro, parsley, and dill.
Trees/Shrubs: April is excellent for planting new trees, shrubs, and evergreens, as well as dividing mature perennials like sedum and mums.
1. Planting & Sowing
Cool-Season Vegetables: Direct sow root crops like carrots, beets, radishes, and turnips. Leafy greens such as lettuce, spinach, kale, and Swiss chard also thrive when planted now.
Hardy Edibles: Plant potato tubers, onion sets, and asparagus crowns directly outdoors. This is also an excellent time to put out strawberry plants and raspberry bushes.
Warm-Season Starts: In warmer regions (like Texas or Florida), you can set out tomato and pepper plants by mid-to-late April, but be prepared to cover them if a late frost is predicted. In cooler climates, continue starting these indoors to transplant in May.
Flowers: Plant frost-tolerant annuals like pansies, violas, and snapdragons for immediate color. You can also start summer-blooming bulbs like gladiolus, dahlias, and lilies.
2. Essential Maintenance
Soil Preparation: Test your soil pH and nutrient levels before adding fertilizers. Amend beds with a 1-to-2-inch layer of compost to improve structure and fertility.
Tip: Never work in soil that is too wet or mucky, as this causes compaction and destroys soil structure.
Pruning: Prune spring-flowering shrubs (like forsythia, azaleas, and lilacs) immediately after they finish blooming. Prune roses just as buds begin to push.
Weed & Pest Control: Pull young weeds now before they go to seed. Apply a fresh layer of mulch (2–3 inches) to suppress new weeds and retain moisture. Monitor for early pests like aphids and slugs.
3. Lawn Care
Fertilizing: April is the month to begin fertilizing warm-season grasses like Bermuda and Zoysia. For cool-season lawns, focus on aeration and overseeding patchy areas.
Mowing: Start your regular mowing schedule as growth accelerates. Set mower blades to a medium-to-high height to encourage deep root systems.
4. Supporting Wildlife
Pollinators: Leave some leaf litter in undisturbed areas for overwintering pollinators and plant native nectar-rich flowers like yarrow or California poppies.
Birds: Clean out old nests from birdhouses and mount new ones for songbirds like bluebirds and wrens.