March Planting Guide: Top 15 Crops for Spring Harvests

As the transition from winter to spring unfolds, March presents an opportune window for gardeners to initiate their planting endeavors. This period, characterized by gradually warming soil and increasing daylight hours, is ideal for a diverse array of crops, ranging from leafy greens and root vegetables to certain herbs and even some early-season fruits. Strategic planting during this month can lead to a bountiful harvest throughout the spring and summer.

One category of plants well-suited for March planting includes various leafy greens. Spinach, for instance, thrives in cooler temperatures and can be sown directly into the ground as soon as the soil becomes workable. Its rapid growth cycle allows for multiple harvests before the summer heat encourages bolting. Similarly, lettuce, particularly varieties like romaine and butterhead, benefits from early planting. These greens prefer mild conditions and can be harvested as young leaves or allowed to mature. Arugula, with its distinct peppery flavor, is another excellent choice for early spring. It germinates quickly and provides a continuous supply of leaves if picked regularly. Kale, a highly nutritious leafy green, is also resilient to cooler temperatures and can be planted in March for a prolonged harvest.

Root vegetables are another staple for early spring planting. Carrots, known for their sweet flavor and versatility, can be sown directly into well-drained soil. It's important to ensure the soil is free of rocks and debris to allow for straight root development. Radishes are a particularly rewarding crop for impatient gardeners, as they mature in as little as three to four weeks. Their quick turnaround makes them an excellent choice for succession planting. Beets, both for their roots and their edible greens, also perform well when planted in March. They are relatively low-maintenance and offer a dual harvest.

Beyond greens and roots, certain alliums and brassicas are also suitable for March. Onions, whether started from sets or seeds, can be planted early in the season. They require a long growing period, so an early start is beneficial. Peas, both shelling and snap varieties, are a classic spring crop. They prefer cooler weather and can be planted as soon as the soil is ready, often requiring a trellis or support structure as they grow. Broccoli and cabbage, members of the brassica family, can also be started indoors in late winter and transplanted outdoors in March, or sown directly in milder climates. These crops benefit from the cooler temperatures to develop their heads before the intense summer heat arrives.

Herbs such as cilantro and dill, which tend to bolt quickly in warm weather, can be successfully planted in March. The cooler temperatures allow them to establish and produce leaves for a longer period before flowering. Parsley, a biennial herb, can also be planted early in the season, providing fresh leaves throughout the spring and summer.

For those in regions with a longer growing season or with protected growing spaces, some early fruiting plants can also be considered. Strawberries, particularly bare-root varieties, can be planted in March. An early start allows them to establish their root systems before the main growing season, leading to a better yield.

When planning for March planting, it's crucial to consider local climate conditions and the last expected frost date. While many of these crops are tolerant of cooler temperatures, a sudden hard frost can still damage young seedlings. Utilizing row covers or cold frames can provide additional protection if unexpected cold snaps are anticipated. Preparing the soil by amending it with compost and ensuring good drainage will also contribute significantly to the success of these early spring plantings. By carefully selecting and planting these suitable crops in March, gardeners can kickstart their growing season and enjoy a continuous supply of fresh produce.