Updated: June 30, 2023

Introduction

Growing your own vegetables is a rewarding and eco-friendly way to ensure a supply of fresh and healthy food. One vegetable that is gaining popularity among home gardeners is purple kale. Known for its vibrant color and nutritional benefits, purple kale not only adds beauty to your indoor garden but also provides a rich source of vitamins and minerals. In this article, we will guide you on how to grow purple kale plant indoors, so you can enjoy its delicious and nutritious leaves all year round.

Choosing the Right Variety

Before you start growing purple kale indoors, it is important to choose the right variety that suits your needs. Some popular purple kale varieties include Redbor, Scarlet, and Red Russian. These varieties have deep purple or burgundy-colored leaves and are known for their tender texture and mild flavor. Choose a variety that is well-suited for indoor cultivation, as some varieties may require more space or specific climatic conditions.

Selecting the Right Container

When growing purple kale indoors, selecting the right container is crucial for the plant’s success. Opt for a container that is at least 12 inches deep and wide enough to accommodate the plant’s root system. Ensure that the container has drainage holes at the bottom to prevent waterlogging, as excess moisture can lead to root rot.

Soil Preparation

Purple kale thrives in well-draining soil that is rich in organic matter. Prepare a potting mix by combining equal parts of compost, peat moss, and vermiculite or perlite. This mixture provides good moisture retention while allowing excess water to drain away. Avoid using garden soil alone, as it tends to be heavy and may not provide adequate drainage for indoor cultivation.

Planting Process

  1. Fill the container with the prepared potting mix, leaving about an inch of space from the top.
  2. Create small holes in the soil, spaced around 12 inches apart.
  3. Gently remove the purple kale seedlings from their nursery containers and place them in the holes.
  4. Cover the roots of the seedlings with soil, ensuring that they are firmly planted.
  5. Water the plants thoroughly but avoid overwatering.

Lighting Requirements

Purple kale plants require at least 6-8 hours of sunlight each day to grow well. However, since indoor conditions may not always provide sufficient natural light, it is essential to supplement it with artificial lighting. Grow lights such as fluorescent or LED lights can be used to provide the necessary light intensity and duration. Place the lights about 6-12 inches above the plants and keep them on for 12-16 hours per day. Adjust the height of the lights as the plants grow to maintain an optimal distance.

Temperature and Humidity

Purple kale thrives in cool temperatures between 60-70°F (15-21°C). Maintain a consistent temperature range to promote healthy growth. Additionally, indoor environments can be dry, so it is important to provide sufficient humidity for the plants. Mist the leaves regularly with water or use a humidifier to maintain a humidity level of 40-50%.

Watering and Fertilizing

Proper watering is essential for the growth of purple kale plants. Keep the soil consistently moist but avoid waterlogging. Check the moisture level by inserting your finger into the soil; if it feels dry up to your first knuckle, it’s time to water. Use room temperature water and water until it drains out from the bottom holes.

Fertilize your purple kale plant every 2-3 weeks using a balanced organic fertilizer. This will ensure that your plants receive adequate nutrients for healthy growth. Follow the instructions on the fertilizer packaging for proper dosage and application.

Pest Control

While growing purple kale indoors minimizes the risk of pests, certain insects like aphids, whiteflies, and caterpillars can still find their way into your plants. Regularly inspect the leaves for any signs of infestation such as holes, sticky residue, or discoloration. If you spot any pests, remove them manually or use organic pest control methods like neem oil spray or insecticidal soap.

Harvesting and Storage

Purple kale leaves can be harvested when they reach a desirable size, typically around 8-10 inches in length. Harvest the outer leaves by cutting them off near the base of the plant using a sharp knife or scissors. Leave the center leaves intact to allow continuous growth.

Store harvested purple kale leaves in a plastic bag or airtight container in the refrigerator. They can stay fresh for up to a week. Before consuming, rinse the leaves thoroughly to remove any dirt or debris.

Conclusion

Growing purple kale plant indoors is an enjoyable and rewarding experience that allows you to enjoy fresh and nutritious greens throughout the year. By following these guidelines on selecting the right variety, container, soil preparation, lighting, temperature, and watering techniques, you can successfully cultivate vibrant purple kale plants right in your own home. So why not give it a try and bring the beauty and health benefits of purple kale to your indoor garden?