Skip to main content

Rutabaga

Scientific Name

Brassica napus.

Description

Rutabaga, scientifically known as Brassica napus var. napobrassica, is a root vegetable that belongs to the brassica family, which includes cabbage, turnips, and kale. It is a cross between turnips and wild cabbage, making it a biennial plant often grown as an annual.

The rutabaga plant features thick, bulbous roots that can range in color from yellow to purple, and it typically has a sweet, earthy flavor. The leaves, which are plumb and dark green, grow above the ground and can also be harvested for their nutritional value. The plant thrives in cooler climates and is often sown in late summer or early fall, as it requires a period of cold weather to develop its flavor fully.

Rutabagas prefer well-drained, fertile soil, with a pH between 6.0 and 7.5. They require regular watering, especially during dry spells, and benefit from mulching to retain soil moisture and suppress weeds. Given their relatively long growing season—about 90 to 100 days—rutabagas are usually harvested in late fall or early winter after experiencing a hard frost, which enhances their sweetness.

Nutritionally, rutabagas are rich in vitamins C and E, fiber, and various antioxidants, making them a healthy addition to meals. They can be prepared in various ways: roasted, mashed, or used in soups and stews. Their versatility and hardiness in cooler conditions make them a valuable choice for home gardens, especially in regions with colder climates.

Where it Grows

When to Plant

When to Plant Rutabagas

Rutabagas (Brassica napus subsp. rapifera), also known as swedes or yellow turnips, are cool-season root vegetables that can thrive in various climates. Knowing when to plant rutabagas is crucial for ensuring a successful harvest, as timing affects both growth and flavor.

Climate Considerations

Rutabagas prefer cool temperatures for optimal growth. They can be planted in spring for a summer harvest or in late summer for a fall harvest. The ideal soil temperature for germination is between 50°F to 85°F (10°C to 29°C).

  1. Spring Planting: If you're planting in the spring, aim to sow seeds 2 to 4 weeks before the last expected frost date in your area. In many regions, this means sowing seeds directly in the garden around early to mid-April, though exact timing may vary based on local climate conditions.

  2. Fall Planting: For a fall harvest, rutabagas are typically planted 10 to 12 weeks before the first fall frost. This may be anywhere from late July to mid-August, depending on your location. Calculating backward from the expected frost date will help you determine the best planting time.

Soil Preparation

Before planting, ensure your soil is well-drained, loamy, and enriched with organic matter. Rutabagas thrive in slightly acidic to neutral soil (pH 6.0 to 7.0). Prepare your garden bed by tilling the soil and amending it with compost or well-rotted manure a few weeks before sowing.

Seed Sowing

Rutabagas can be directly sown into the garden. Plant seeds about ½ inch deep, spacing them 2 to 4 inches apart in rows that are 18 to 24 inches apart. Once seedlings are established and a few inches tall, thin them to about 6 to 12 inches apart to allow ample room for root development.

Growing Conditions

Monitor soil moisture and maintain consistent watering, especially during dry periods. Rutabagas benefit from cool, moist conditions, but avoid overwatering, which can lead to rot.

Conclusion

Successfully timing the planting of rutabagas is essential for a flavorful and healthy harvest. By understanding your local climate and following the recommended sowing guidelines, you can enjoy this nutritious vegetable in your garden. With proper care and attention, rutabagas can be a rewarding addition to your fall and winter meals.

How to Plant

Planting Rutabaga: A Guide for Home Gardeners

Rutabaga (Brassica napus), a nutritious root vegetable, thrives in cooler climates and is best planted in late summer or early fall, though it can also be sown in early spring. Start by selecting a well-drained, fertile location that receives full sunlight. To enhance soil fertility, incorporate organic matter, such as compost or well-rotted manure, into the planting area.

Sow seeds directly in the garden about ½ inch deep and 12 inches apart, with rows spaced 24 inches apart to allow adequate growth. If using transplants, start seeds indoors approximately 4-6 weeks before the last frost date and transplant seedlings outdoors when they are about 4 inches tall and the soil temperature is consistently above 50°F (10°C).

Rutabagas require consistent moisture, so keep the soil evenly moist, particularly during dry spells. Thin seedlings to one plant every 12-18 inches once they are established, promoting better root development. Adding mulch helps retain soil moisture and suppress weeds. With care, rutabagas grow rapidly, and you can expect to harvest them 90-120 days after planting, once they reach about 3-5 inches in diameter.

Watering

When watering rutabaga plants, the best strategy is to maintain consistent moisture without over-saturating the soil. These cool-season crops thrive in well-drained, fertile soil, so aim to keep the top inch of soil consistently damp. Water deeply to encourage strong root development, ideally providing about an inch of water per week, either through rainfall or supplemental irrigation. Early morning is the best time to water, allowing plants to absorb moisture throughout the day and minimizing disease risk associated with nighttime dampness.

During dry spells or warmer weather, check the soil moisture regularly and adjust your watering frequency. Mulching around the base of the plants helps retain soil moisture and regulates temperature. Avoid watering the leaves to prevent fungal diseases; direct watering at the soil level or using drip irrigation can effectively achieve this goal, ensuring your rutabaga thrives.

Pruning

Rutabagas (Brassica napobrassica) are root vegetables that typically don't require extensive pruning like other plants. Instead, the focus is on proper thinning and removal of leaves to encourage healthy root development.

To maintain a strong plant, start by thinning seedlings when they are about 3 to 4 inches tall, leaving only the strongest plants spaced 12 to 18 inches apart. This allows adequate space for the roots to grow.

As the rutabaga plants mature, you can harvest the outer leaves, cutting them right at the base with clean shears. This not only provides fresh greens for consumption but also permits more light to reach the developing tubers and avoids overcrowding. Always prune in dry conditions to prevent disease.

By following these pruning strategies, you can enhance the growth of the rutabaga root while enjoying its leafy greens.

Weeding

Weeding around rutabaga plants is essential for ensuring healthy growth, as competition for nutrients and water can hinder their development. Start by hand-weeding to avoid disturbing the shallow roots of the rutabaga. When the seedlings are young, typically around 2-4 inches tall, it’s easier to see and remove weeds without damaging the crop.

Utilizing a hoe can be effective once the rutabagas are larger, but it’s important to be cautious to minimize root disturbance. Mulching around the plants with straw or wood chips can suppress weed growth while retaining soil moisture. Regular checks every one to two weeks during the growing season will help keep weeds at bay. Implementing these strategies helps create an optimal growing environment for rutabagas, leading to healthier plants and a better yield.

Mulching

Mulching is an effective way to support the growth of rutabagas (Brassica napus subsp. napobrassica), providing moisture retention, temperature regulation, and weed suppression. The best strategy involves a few key steps.

First, apply mulch after the rutabagas have emerged and when the soil has warmed, typically several weeks after sowing or transplanting. Use organic materials like straw, shredded leaves, or grass clippings, applying a layer 2 to 4 inches thick around the plants, ensuring not to cover the crowns to avoid rot.

In addition to moisture retention, mulch should be replenished as it decomposes—preferably every 4 to 6 weeks. Regular monitoring of soil moisture levels is essential, as heavier mulch can retain moisture longer. This approach not only enhances root development but also helps maintain a more consistent environment for the plants, leading to healthier growth and improved yield.

Fertilizing

Fertilizing rutabaga (Brassica napus subspecies rapifera) is vital for healthy growth and bulb development. The best strategy starts with soil preparation: conduct a soil test to determine nutrient levels and pH, ideally between 6.0 and 6.8.

Before planting, incorporate a balanced fertilizer, such as a 10-10-10 NPK (nitrogen, phosphorus, potassium), into the soil. This provides essential nutrients right from the start.

As rutabagas grow, they require additional nitrogen, especially during early growth. Apply a nitrogen-rich fertilizer or a side-dressing of compost about 4-6 weeks after sowing.

It's important to follow the recommended rates on the fertilizers' packaging to avoid over-fertilization, which can lead to excessive foliage growth at the expense of bulb formation. Maintaining consistent moisture and mulching can also help in nutrient absorption, supporting robust rutabaga development.

Varieties

Common Varieties of the Rutabaga Plant

Overview

Rutabaga (Brassica napus var. napobrassica), also known as swede or yellow turnip, is a root vegetable that belongs to the Brassica family, which includes turnips, cabbage, and kale. It is renowned for its sweet, earthy flavor and versatility in the kitchen. Here, we will explore some of the most commonly cultivated varieties of rutabaga.

1. American Purple Top

One of the most popular varieties, the American Purple Top is characterized by its purple-tinged top and yellow flesh. It is known for its good storage qualities and is often harvested in late summer to early fall. This variety tends to have a mild and sweet flavor, making it suitable for both cooking and raw consumption.

2. Laurentian

The Laurentian variety has a smooth, slightly flattened shape with yellowish skin and flesh. It is particularly valued for its sweet flavor and creamy texture. This type is often grown in Canada and is favorable for its cold tolerance. Laurentian rutabagas are usually harvested in the fall and can be stored for extended periods.

3. Helenor

Helenor rutabagas are distinguished by their round shape and yellow skin. This variety is known for its excellent flavor and the ability to thrive in a variety of soil conditions. It is often appreciated by home gardeners for its good yields and adaptability to different climates.

4. Brassica napus (Yellow Rutabaga)

This rutabaga variety showcases a bright yellow exterior and tender yellow flesh. Known for its robust flavor and versatility, it is a favorite for culinary uses, including mashing, roasting, and soups. Yellow rutabagas are often favored by gardeners in warmer climates.

5. White rutabaga

This variety has a smoother and paler skin compared to other types of rutabaga. While not as sweet as some of the yellow varieties, it is still a popular choice for those who enjoy a more subtle taste. The flesh is also quite smooth, making it great for purees and soups.

Growing Considerations

When selecting a rutabaga variety, it's essential to consider the climate and soil type in your garden, as well as your culinary preferences. Most rutabagas thrive in cool weather, making them suitable for fall and winter harvests. Proper care, including consistent watering and pest management, will ensure a bountiful crop.

Conclusion

With a range of varieties to choose from, amateur gardeners can experiment with different textures and flavors to find their preferred rutabaga. Whether you're cultivating for storage or fresh consumption, understanding the characteristics of these popular varieties will enhance your gardening experience and culinary endeavors.

Nutritional Composition (per 100g)

NutrientAmount% Daily Value
Calories502%
Total Fat0.2 g0%
Saturated Fat0 g0%
Cholesterol0 mg0%
Sodium20 mg1%
Total Carbohydrates12 g4%
Dietary Fiber4 g14%
Sugars6 gN/A
Protein1.5 g3%
Vitamin C29 mg32%
Calcium50 mg4%
Iron0.8 mg4%
Potassium350 mg8%
Vitamin B60.1 mg6%

Health Benefits

Rutabaga, also known as swede, is a root vegetable that offers several health and wellness benefits, making it a valuable addition to the diet of amateur gardeners and health enthusiasts alike. Rich in nutrients, rutabagas are an excellent source of vitamin C, which supports immune function and skin health. They also provide significant amounts of fiber, aiding in digestion and promoting a feeling of fullness, which can assist in weight management.

Additionally, rutabagas contain antioxidants, such as glucosinolates, which may contribute to cancer prevention by combating oxidative stress and reducing inflammation in the body. The presence of potassium supports heart health by helping regulate blood pressure and maintaining fluid balance.

In culinary applications, rutabagas can be used in various dishes, such as mashes, soups, and stews, presenting an alternative to more starchy roots like potatoes. Their slightly sweet and earthy flavor profile can enhance the nutritional value of meals while diversifying the palate.

For those growing this hardy vegetable, it can be an excellent crop for colder climates, providing fresh produce well into the fall and winter months. In summary, rutabaga not only brings culinary versatility but also numerous health benefits to enhance overall wellness.

Fun Facts

Fun Facts About Rutabaga

  • Hybrid Heritage: The rutabaga (Brassica napus) is a cruciferous vegetable that is believed to be a cross between the turnip and wild cabbage, making it a unique member of the Brassicaceae family.

  • Nutrient Powerhouse: Packed with nutrients, rutabagas are rich in vitamin C, dietary fiber, and antioxidants, contributing to their health benefits and making them a great addition to a balanced diet.

  • Versatile Culinary Use: This root vegetable can be roasted, mashed, or used in soups and casseroles. Its slightly sweet and earthy flavor makes it a delightful alternative to potatoes.

  • Cold Weather Crop: Rutabagas thrive in cooler climates and can be planted in late summer for a fall harvest. They actually taste sweeter after exposure to frost, which enhances their flavor.

  • Long Storage Life: One of the advantages of rutabagas is their long shelf life. When stored in a cool, dark place, they can last for several months, making them a staple in winter cuisine.

These fun facts highlight the unique characteristics and benefits of growing and consuming rutabaga, making it a delightful choice for amateur gardeners and home cooks alike.