March Planting Guide: 16 Essential Crops for Early Spring

As spring approaches, March presents an opportune window for gardeners to initiate planting for a successful growing season. The specific crops suitable for planting in March depend significantly on the local climate and the last anticipated frost date. However, a diverse range of vegetables and herbs can be started either directly in the garden or indoors for later transplanting.

For those in regions where the threat of frost has largely passed or is minimal, several cool-season vegetables can be directly sown outdoors. Root vegetables like carrots and radishes are excellent choices. Carrots, known for their sweet flavor and versatility, thrive in well-drained, loose soil and can be planted in succession for a continuous harvest. Radishes, with their quick growth cycle, offer an almost immediate gratification for early spring gardeners. Both benefit from consistent moisture and can be intercropped with slower-growing plants.

Leafy greens are another staple for early spring planting. Spinach, lettuce, and kale are all cold-hardy and can be planted directly into the garden bed. Spinach provides nutrient-rich leaves and can be harvested multiple times. Various types of lettuce, from loose-leaf to romaine, can be planted for fresh salads. Kale, a robust and highly nutritious green, tolerates cooler temperatures well and can continue producing into warmer months. Arugula, with its peppery flavor, is another fast-growing leafy green that can be sown in March. These greens generally prefer partial shade as temperatures rise to prevent bolting.

Beyond leafy greens and root vegetables, some alliums and brassicas are also suitable for March planting. Onions, whether started from sets or seeds, can be planted in early spring. They require a long growing season but are a rewarding crop. Peas, both shelling and snap varieties, are another excellent cool-season crop. They can be direct-sown and benefit from trellising as they grow. Broccoli and cabbage, members of the brassica family, can be started indoors in March in most climates, or directly sown in milder regions. These plants require ample space and rich soil to develop their characteristic heads.

Herbs are also a valuable addition to the March planting schedule. Cilantro, with its distinctive flavor, is a cool-season herb that can be direct-sown. It tends to bolt quickly in warm weather, so an early start is beneficial. Parsley, another popular herb, can also be planted in March. It is a biennial but is often grown as an annual for its fresh leaves.

For gardeners in colder climates or those looking to get a head start on warm-season crops, indoor seed starting is crucial in March. Tomatoes, peppers, and eggplants, which are sensitive to frost and require a long growing season, can be initiated indoors under controlled conditions. This allows them to develop a strong root system and some foliage before being transplanted outdoors after the last frost. Similarly, herbs like basil, while preferring warmer temperatures, can be started indoors in March to give them a head start.

When planning March planting, soil preparation is key. Ensuring the soil is workable, not waterlogged, and enriched with compost will provide an optimal environment for young plants. Monitoring local weather forecasts and understanding the specific microclimate of the garden are essential for making informed decisions about what to plant and when, maximizing the chances of a bountiful harvest.