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How to Grow Kale Plant Outdoors

Updated: July 26, 2023

Kale, a member of the cabbage family, is a versatile and nutrient-rich vegetable that is gaining popularity among health-conscious individuals. It is easy to grow and can be grown outdoors in your garden, even in cooler climates. In this article, we will discuss how to successfully grow kale plants outdoors.

Choosing the Right Variety

Before you start growing kale outdoors, it is important to choose the right variety that suits your needs. There are several types of kale available, including curly kale, dinosaur kale, and red Russian kale. Each variety has its own unique flavor and texture.

Curly kale is the most common variety, with its tightly curled leaves. Dinosaur kale, also known as Lacinato or Tuscan kale, has dark green leaves with a bumpy texture. Red Russian kale has flat leaves with purple veins and a milder taste than other varieties.

Consider factors such as taste preference, climate conditions, and availability when selecting the variety of kale for your outdoor garden.

Preparing the Soil

Kale thrives in well-drained soil that is rich in organic matter. Before planting, prepare the soil by removing any weeds or debris. Loosen the soil using a garden fork or tiller to improve drainage and root penetration.

Add compost or well-rotted manure to enhance soil fertility. Kale plants are heavy feeders, so it is essential to provide them with adequate nutrients for optimal growth. Incorporating organic matter into the soil will help supply essential nutrients and improve moisture retention.

Planting Kale Seeds

Kale can be planted directly from seeds or started indoors and transplanted later. If you choose to start seeds indoors, sow them in seed trays or small pots about 6-8 weeks before the last frost date in your area. Keep the soil consistently moist and maintain a temperature between 60-70°F (15-21°C).

If you prefer to sow seeds directly outdoors, wait until the soil temperature reaches around 45-75°F (7-24°C). Sow the seeds about ¼ inch deep, spacing them 12-18 inches apart. Cover the seeds with soil and gently firm the soil surface.

Water the newly planted seeds gently to avoid displacing them. Keep the soil moist but not waterlogged during germination. Germination typically takes 7-14 days, depending on the variety and environmental conditions.

Caring for Kale Plants

Once your kale plants have germinated and established, they require proper care to ensure healthy growth.

Watering

Kale plants prefer consistently moist soil but do not tolerate waterlogged conditions. Water them deeply once a week, or more frequently during hot and dry periods. Avoid overhead watering as it can promote disease development. Instead, water directly at the base of the plants to prevent moisture-related issues.

Mulching

Mulching is beneficial for kale plants as it helps retain moisture, suppresses weed growth, and regulates soil temperature. Apply a layer of organic mulch, such as straw or shredded leaves, around the base of the plants. This will also help keep the soil cool during warm weather.

Fertilizing

To promote healthy growth and abundant harvest, fertilize your kale plants regularly. Apply a balanced fertilizer or compost every 4-6 weeks throughout the growing season. Follow the manufacturer’s instructions for application rates and methods.

Pests and Diseases

Kale plants are generally resistant to pests and diseases. However, common pests such as aphids and cabbage worms may occasionally attack your crop. Monitor your plants regularly for any signs of infestation and take appropriate action if necessary.

Handpicking pests or using organic insecticides can help control these problems effectively. Additionally, practicing crop rotation and maintaining good garden hygiene can reduce the risk of disease outbreaks.

Harvesting Kale

Kale leaves can be harvested at any stage, depending on personal preference. Young leaves are more tender and suitable for salads, while mature leaves are better for cooking.

To harvest kale, pinch or cut the outer leaves from the plant, leaving the central growing point intact. This will allow the plant to continue producing new leaves. Avoid harvesting more than one-third of the plant at a time to ensure continuous growth and prolonged harvest.

Conclusion

Growing kale plants outdoors can be a rewarding experience. With the right variety choice, proper soil preparation, and regular care, you can enjoy a bountiful harvest of this nutrient-rich vegetable. Remember to water, mulch, fertilize, and monitor for pests and diseases to ensure optimal growth. So, roll up your sleeves and get ready to grow your own kale garden!