Growing Kale in Containers... it's Easy!
Growing kale in containers is something most anyone can do. Find full sun, get a pot and plant some kale seeds! It’ll need lots of water (but not too much) and a little care, but you’ll have bright green edible kale in just 2-3 months.
Grow kale outdoors most of the year if you live in hardiness zones 3-12. And if it’s super hot season grow kale indoors under grow lights! There’s always a way… and kale is a particularly hardy veggie to grow once you understand the basics.
Container gardening has become increasingly popular in recent years, especially for gardeners with limited space. Kale, a nutrient-rich leafy green, is an excellent choice for container gardening due to its compact size and ability to thrive in a variety of growing conditions.
Another HUGE reason people are growing kale in containers at home is to avoid pesticides, toxins and heavy metals that store-bought kale has been reported to test positive for. What is going on with big kale producers, we aren’t sure. But we DO know kale IS EASY TO GROW yourself without pesticides or synthetic fertilizers.
Benefits of Growing Kale in Containers
One of the main advantages of growing kale in containers is the space-saving aspect. Whether you live in an apartment with a small balcony or have limited yard space, containers allow you to maximize your growing area. Kale plants can be grown close together in containers, making efficient use of limited space.
Another benefit of container gardening is the ease of maintenance. Containers can be placed at a convenient height, reducing the need for bending or kneeling while tending to your plants. Additionally, containers can be easily moved around to optimize sunlight exposure or protect your plants from extreme weather conditions.
Furthermore, growing kale in containers provides a level of protection from pests and diseases. By keeping your plants off the ground, you can minimize the risk of soil-borne diseases and reduce the likelihood of pest infestations. This can result in healthier plants and higher yields.
Choosing the Right Container for Kale
When selecting a container for growing kale, there are several factors to consider. First and foremost, you need to ensure that the container is large enough and deep enough to accommodate the root system of your kale plants.
Kale has a relatively shallow root system, so a container with a depth of 10-12 inches works well.
In terms of material options, there are various choices available. Plastic containers are lightweight and affordable, but they may not provide adequate insulation during extreme temperatures. This will depend on the time of year you plant your kale, and also where you live.
Personally I love self-watering plastic pots (the ones that have a small empty reservoir at the bottom that can be filled with water, feeding the plant roots slowly and consistently with water). I tend to forget to water the veggies I’m growing every day, and kale does need plenty of water to grow well.
Ceramic or clay pots are more aesthetically pleasing but can be heavier and more prone to cracking.
Fabric containers, such as grow bags, are a popular choice for container gardening as they are lightweight, breathable, and allow for better drainage.
Drainage is a crucial consideration when choosing a container for kale. Ensure that your container has drainage holes at the bottom to prevent waterlogging, which can lead to root rot.
Soil Requirements for Growing Kale in Containers
Kale thrives in well-draining soil with a slightly acidic pH level between 6.0 and 7.5. It is important to test the pH level of your soil and make any necessary adjustments before planting your kale. You can purchase a pH testing kit from your local garden center or use a home testing kit.
In terms of nutrient requirements, kale is a heavy feeder and requires fertile soil to grow well. Prior to planting, it is recommended to amend your soil with organic matter such as compost or well-rotted manure to improve its fertility. This will provide your kale plants with the necessary nutrients for healthy growth.
When it comes to soil mix options, you can either purchase a pre-made potting mix specifically formulated for vegetables or create your own mix. A good homemade mix consists of equal parts compost, peat moss, and vermiculite or perlite for improved drainage.
Watering and Fertilizing Kale in Containers
Proper watering is essential for the successful growth of kale in containers. Kale plants prefer consistently moist soil but are susceptible to root rot if overwatered. It is important to strike a balance between keeping the soil moist and avoiding waterlogged conditions.
The frequency and amount of watering will depend on various factors such as the size of your container, the weather conditions, and the stage of growth of your kale plants. As a general guideline, water your kale plants when the top inch of soil feels dry to the touch. Water thoroughly until water drains out of the bottom of the container, ensuring that the entire root system is adequately hydrated.
In terms of fertilizing, kale plants benefit from regular feeding to ensure optimal growth and productivity. You can use a balanced organic fertilizer or a slow-release granular fertilizer specifically formulated for vegetables. Follow the instructions on the fertilizer packaging for application rates and frequency. Avoid over-fertilizing, as this can lead to excessive leaf growth at the expense of flavor and nutritional value.
Sunlight and Temperature Requirements for Kale in Containers
Kale is a cool-season crop that thrives in full sun but can tolerate partial shade. Ideally, your kale plants should receive at least 6 hours of direct sunlight per day for optimal growth and productivity. If you are growing kale indoors or in a location with limited sunlight, you can supplement with artificial grow lights to ensure adequate light levels.
In terms of temperature, kale is relatively cold-tolerant and can withstand temperatures as low as 20°F (-6°C). However, it is important to note that kale prefers cooler temperatures between 60°F (15°C) and 70°F (21°C) for optimal growth. High temperatures can cause the leaves to become bitter and tough. If you live in a region with hot summers, consider providing shade or using shade cloth to protect your kale plants from excessive heat.
Best Varieties of Kale for Container Gardening
When selecting kale varieties for container gardening, it is important to choose compact or dwarf varieties that are well-suited to confined spaces. Here are some popular options:
1. Dwarf Blue Curled: This variety is compact and has tightly curled leaves. It is ideal for container gardening due to its small size and attractive appearance.
2. Red Russian: This variety has flat, fringed leaves with a reddish-purple color. It is known for its tender texture and mild flavor.
3. Lacinato (Tuscan) Kale: Also known as dinosaur kale, this variety has dark green, blistered leaves. It is a popular choice for its unique flavor and versatility in cooking.
When selecting kale varieties, consider both flavor and texture preferences. Some varieties have a milder taste, while others have a more pronounced earthy flavor. Similarly, some varieties have tender leaves, while others have a more robust texture.
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Tips for Planting and Caring for Kale in Containers
When it comes to planting kale in containers, you have two options: seed starting or transplanting. Seed starting allows you to control the entire growth process from the beginning, while transplanting allows you to skip the initial germination stage.
If you choose to start from seeds, sow them directly into your containers about 4-6 weeks before the last frost date in your area. Plant the seeds about ¼ inch deep and cover lightly with soil. Keep the soil consistently moist until the seeds germinate, which usually takes 7-14 days.
If you prefer to transplant seedlings, purchase healthy young plants from a reputable nursery or start your own seedlings indoors 4-6 weeks before the last frost date. Transplant the seedlings into your containers once they have developed a few sets of true leaves.
When planting kale in containers, ensure that you space the plants adequately to allow for proper air circulation and prevent overcrowding. A spacing of 8-12 inches between plants is generally recommended. Plant the seedlings at the same depth as they were growing in their original containers and firm the soil gently around the roots.
Pruning is not necessary for kale plants grown in containers but can help promote bushier growth and increase air circulation. If you notice any yellow or damaged leaves, remove them promptly to prevent the spread of diseases.
Common Problems and Solutions for Growing Kale in Containers
Like any plant, kale grown in containers is susceptible to certain pests, diseases, and nutrient deficiencies. Here are some common problems you may encounter and their solutions:
1. Pests: Aphids, cabbage worms, and flea beetles are common pests that can affect kale plants. Regularly inspect your plants for signs of infestation and take appropriate measures such as handpicking or using organic insecticides.
2. Diseases: Kale is relatively resistant to diseases, but it can still be affected by fungal infections such as powdery mildew or downy mildew. Ensure proper air circulation around your plants and avoid overhead watering to minimize the risk of fungal infections.
3. Nutrient deficiencies: Kale plants require a balanced supply of nutrients to grow well. Common nutrient deficiencies include nitrogen, phosphorus, and potassium. Regularly monitor your plants for signs of nutrient deficiencies such as yellowing leaves or stunted growth. Address any deficiencies by applying a suitable organic fertilizer or amending the soil with the necessary nutrients.
Overwatering or underwatering can also cause problems for kale plants in containers. Overwatering can lead to root rot and other fungal diseases, while underwatering can result in stunted growth and poor productivity. Monitor the moisture levels of your soil regularly and adjust your watering schedule accordingly.
Harvesting Kale in Containers
Kale leaves can be harvested at any stage of growth, but they are typically most tender and flavorful when picked young. Begin harvesting outer leaves when they reach a length of 6-8 inches. Use a sharp knife or scissors to cut the leaves just above the base of the plant, leaving the central growing point intact for continued growth.
As you harvest your kale leaves, new growth will continue to emerge from the center of the plant, allowing for multiple harvests throughout the growing season. Regular harvesting also helps to prevent the plant from becoming top-heavy and promotes bushier growth.
Freshly harvested kale can be used in a variety of recipes, both raw and cooked. It can be added to salads, smoothies, stir-fries, soups, or sautéed as a side dish. Kale is known for its nutritional value, being rich in vitamins A, C, and K, as well as minerals such as calcium and iron.
If you have an abundance of kale and cannot use it all at once, there are several methods for storing and preserving it. Kale can be blanched and frozen for long-term storage. Alternatively, you can dehydrate kale leaves to make kale chips or freeze them in individual portions for later use.
Growing kale in containers is a rewarding and practical way to enjoy this nutritious leafy green even if you have limited space. The benefits of container gardening, such as space-saving, easy maintenance, and protection from pests and diseases, make it an ideal option for growing kale. By choosing the right container, providing the appropriate soil conditions, and following proper care guidelines, you can successfully cultivate kale in containers. So why not give it a try and start enjoying the fresh taste of homegrown kale today?
If you’re interested in growing kale in containers, you might also want to check out this article on how to create an IKEA greenhouse hack using the countertop SOCKER. It’s a clever and affordable way to create a mini greenhouse for your kale plants, providing them with the ideal growing conditions. With this DIY project, you can easily control the temperature and humidity levels, ensuring your kale thrives in a container garden. (source)
FAQs
What is kale?
Kale is a leafy green vegetable that is a member of the cabbage family. It is packed with nutrients and is considered a superfood.
Can kale be grown in containers?
Yes, kale can be grown in containers. In fact, it is a great option for those who have limited space or want to grow their own vegetables but don’t have a garden.
What type of container is best for growing kale?
A container that is at least 12 inches deep and wide is best for growing kale. It should also have drainage holes to prevent water from accumulating and causing root rot.
What type of soil should be used for growing kale in containers?
A well-draining potting mix that is rich in organic matter is best for growing kale in containers. It should also be slightly acidic with a pH between 6.0 and 7.0.
How often should kale be watered when grown in containers?
Kale should be watered regularly when grown in containers. The soil should be kept moist but not waterlogged. It is best to water deeply once or twice a week rather than giving it frequent shallow waterings.
What type of fertilizer should be used for growing kale in containers?
A balanced fertilizer that is high in nitrogen is best for growing kale in containers. It should be applied every 4-6 weeks during the growing season.
When is the best time to harvest kale?
Kale can be harvested when the leaves are about 8-10 inches long. It is best to harvest the outer leaves first and leave the inner leaves to continue growing. Kale can be harvested throughout the growing season.