Redbor Kale, also known as red kale or purple kale, is a beautiful and nutritious addition to any garden. It is a hardy plant that can thrive in Zones 5a and 5b. In this article, we will explore the best practices for growing Redbor Kale in these specific zones, including when to plant and how to grow it successfully.
Growing Redbor Kale in Zones 5a and 5b
Before we get into the specifics, let’s talk about the climate and hardiness of Redbor Kale in Zones 5a and 5b. Understanding these factors is crucial for ensuring a successful harvest.
Climate & Hardiness in Zones 5a and 5b
Redbor Kale is a cold-hardy vegetable that can withstand frost and lower temperatures. In Zones 5a and 5b, the average minimum winter temperature ranges from -20°F to -10°F (-28°C to -23°C). While Redbor Kale can tolerate these temperatures, it is essential to provide some winter protection, such as mulching, to prevent damage.
Aside from its hardiness, Redbor Kale also thrives in cool climates. It appreciates the crisp air and the touch of frost on its vibrant leaves. The colder temperatures actually enhance the flavor and color of this beautiful kale variety. So, if you’re lucky enough to live in Zones 5a and 5b, you’re in for a treat!
When to Plant Redbor Kale in Zones 5a and 5b
The ideal time to plant Redbor Kale in Zones 5a and 5b is in early spring. You can start seeds indoors 6-8 weeks before the last frost date or directly sow seeds in the ground once the soil temperature reaches around 45°F (7°C). The last frost date in these zones typically falls in late April or early May.
However, if you’re feeling adventurous and want to extend your kale-growing season, you can also plant Redbor Kale in the fall. By doing so, you’ll be able to enjoy its vibrant foliage well into the winter months. Just make sure to give it enough time to establish itself before the first frost hits.
Here is a step-by-step guide on planting Redbor Kale:
- Prepare the soil by removing any weeds and loosening it with a garden fork or tiller. Redbor Kale thrives in well-draining soil rich in organic matter.
- Sow the seeds ¼ to ½ inch deep, spacing them about 12 to 18 inches apart. If you started seeds indoors, transplant the seedlings at the same spacing.
- Water the soil thoroughly after planting to ensure good seed-to-soil contact.
- Apply a layer of mulch around the plants to conserve moisture, suppress weed growth, and insulate the roots during colder temperatures.
- Keep the soil consistently moist but not waterlogged throughout the growing season. Water deeply whenever the top inch of soil feels dry.
- Fertilize the plants every 4-6 weeks with a balanced organic fertilizer, following the package instructions.
When to Harvest or Pick Redbor Kale in Zones 5a and 5b
Redbor Kale is typically ready for harvest within 55-75 days after planting, depending on the growing conditions. However, you can start picking young leaves as soon as they reach a harvestable size.
Harvesting Redbor Kale is a rewarding experience. As you gently pull the mature leaves away from the stem or use clean garden shears to snip them off, you’ll be rewarded with a burst of rich color and a satisfying crunch. It’s like nature’s own work of art on your plate!
Follow these steps to harvest Redbor Kale:
- Choose the outer, mature leaves for harvest, leaving the inner leaves to continue growing. Harvesting from the outer leaves helps promote continuous growth.
- Gently pull the leaf away from the stem or use clean garden shears to snip the leaf off.
- Rinse the harvested leaves thoroughly under cool running water to remove any dirt or debris.
Frequently Asked Questions
Here are some common questions that beginners often have about growing Redbor Kale in Zones 5a and 5b:
Can Redbor Kale survive the winter in Zones 5a and 5b?
While Redbor Kale is cold-tolerant, it may require some winter protection in Zones 5a and 5b. Mulching the plants heavily can help insulate the roots and protect them from severe cold snaps.
In addition to mulching, another method to help Redbor Kale survive the winter in Zones 5a and 5b is to consider using row covers. Row covers can provide an extra layer of protection against frost and harsh weather conditions, ensuring your Redbor Kale plants stay healthy and strong throughout the winter months.
How do you prevent pests from attacking Redbor Kale?
Redbor Kale is generally resistant to most pests. However, you might occasionally encounter cabbage worms or aphids. To control these pests, you can manually remove them or use organic pest control methods, such as insecticidal soap or neem oil.
Another effective way to prevent pests from attacking your Redbor Kale plants is by practicing crop rotation. By rotating your crops each season, you can disrupt the life cycle of pests that may be targeting your kale, reducing the likelihood of infestations and promoting overall plant health.
What are some popular companion plants for Redbor Kale?
Good companion plants for Redbor Kale include other cool-season vegetables like broccoli, cabbage, and cauliflower. You can also plant herbs like dill, chamomile, or mint nearby, as they can attract beneficial insects that help deter pests.
Furthermore, incorporating flowering plants such as marigolds or calendula in your garden can not only enhance the visual appeal but also attract pollinators that can benefit your Redbor Kale plants. The presence of pollinators can lead to better yield and overall plant health, creating a thriving ecosystem in your garden.
With its stunning color and nutritional benefits, Redbor Kale is a fantastic addition to any garden in Zones 5a and 5b. By following these tips and guidelines, you can grow healthy and vibrant Redbor Kale plants and enjoy a bountiful harvest throughout the season. Happy gardening!
Join the How to Grow Everything Community
Ready to transform your garden into the oasis of your dreams? Subscribe for free to How to Grow Everything and unlock a treasure trove of expert gardening advice tailored to your specific zone, experience, and interests. Say goodbye to generic tips and hello to personalized guidance that will help you grow robust and stunning Redbor Kale, along with a variety of other plants. Enjoy exclusive offers, insightful articles, and the best gardening strategies delivered straight to your inbox—completely free. From our family to yours, let’s cultivate the garden of your dreams together!
