The Importance of Crop Rotation

gillnurseryGarden Design, Timely Tips, Veggies, Fruits, and Herbs0 Comments

Last week we talked about preparing the vegetable garden by pulling the leftover plants and weeds and turning in plenty of new compost. Next we need to think about what we are going to plant this fall and where in the garden we are going to plant it. Each season is a challenge to grow everything you want to with limited space. And then there’s that term crop rotation. Do I really have to? I like my tomatoes at that end of the garden.

croprotationSimply put, crop rotation is a systematic method of deciding what to plant where in your garden from one season to the next, based on plant groups. Moving plants to a new location each season improves your garden in two ways. First, it helps keep your soil healthy and fertile. Planting the same thing in the same place season after season drains the nutrients from the soil that the plant needs in order to thrive and produce big harvests. Second, rotating plant families helps manage soil-borne diseases like verticillium wilt, and soil-dwelling insects like corn rootworms or root knot nematodes. These types of diseases and pests prefer certain kinds of plants, and the longer the plants stay in the same soil, the better the chance that these enemies will show up and cause trouble.

Here are four simple families of plants to group and rotate each season:

The Tomato Family

The tomato family includes tomatoes, eggplant, peppers, and potatoes. These are heavy feeders and are best planted in enriched soil. Tomato family members often are also affected by the same diseases. Never follow tomatoes after potatoes because deadly late blight can overwinter in potatoes that might have been missed and remain in the soil.

The Bean Family

These crops enrich the soil by adding a little nitrogen. This group includes green beans, green peas, and southern peas. A good gardening practice is to follow beans or peas with leafy greens such as cabbage or kale which love the nitrogen left behind by their predecessors.

The Squash Family

Squash family members are heavy feeders that grow best in rich soil also. They include summer and winter squash, pumpkins, gourds, cucumbers, and melons (including cantaloupe and watermelon).

The Cabbage Family

These leafy greens thrive on nitrogen-rich soil. Plant them where a member of the bean family has grown before. Members include cabbage, broccoli, cauliflower, kale, collards, and turnip greens.

deannaCrop rotation is not as complicated as it sounds, especially if you take the time to sketch a garden plan and refer to the list of families. The benefits are definitely worth the effort.

-DeAnna

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