How to Grow Flowering Kale Plants at Home?

How to Grow Flowering Kale Plants
14 min reading time

Welcome to our comprehensive guide on how to grow flowering kale plants in your garden. Whether you’re a beginner or a seasoned gardener, this guide will provide you with all the information you need to grow flourishing kale plants that will add a colorful touch to your garden.

Flowering kale plants, also known as ornamental kale, are an excellent addition to any garden. They are hardy plants that can withstand cold temperatures and even light frost, making them a great choice for fall and winter gardens. With their vibrant colors and unique foliage, flowering kale plants make a stunning statement in any landscape.

Major Learnings:

  • Learn about the different varieties of flowering kale, and their care requirements.
  • Discover the best-growing conditions for flowering kale plants, including the amount of sunlight and the quality of soil.
  • Follow our step-by-step planting guide to ensure the successful establishment of your flowering kale plants.
  • Understand the proper watering and fertilizing techniques for your plants.
  • Learn how to care for your flowering kale plants throughout their growth cycle and how to extend the blooming season.

Understanding Flowering Kale Plants

Before you start growing flowering kale, it’s essential to understand the care requirements of these plants. They are surprisingly easy to grow, making them an excellent option for beginners and experienced gardeners alike.

Flowering kale care is relatively simple, as long as you provide your plants with the necessary growing conditions. Here are some tips for growing flowering kale:

  1. Choose a location that gets at least six hours of sunlight each day. Flowering kale needs plenty of sun to grow and thrive.
  2. Ensure that the soil is well-draining. These plants don’t like to be in standing water, so make sure the soil can drain excess moisture away.
  3. Use a fertilizer with a balanced ratio of nitrogen, phosphorus, and potassium. A slow-release fertilizer applied every few weeks will help promote healthy growth and bright blooms.
  4. Keep an eye out for pests like aphids and cabbage worms. If you spot these pests, use an insecticidal soap or neem oil to control them.

Following these tips will help ensure that your flowering kale plants grow into beautiful, healthy specimens. In the next section, we’ll dive into how to choose the right location for growing your plants.

Choosing the Right Location

Flowering kale plants require specific growing conditions to thrive. Choosing the right location is crucial to their success. When selecting a site, keep in mind the following flowering kale growing conditions:

LightFull sun to partial shade (4-6 hours of direct sunlight per day)
SoilWell-draining soil with a pH range of 6.0-7.5
TemperatureCool-weather, with ideal temperatures between 50-75°F

When it comes to sunlight requirements for flowering kale, they need at least 4-6 hours of direct sunlight per day to produce the vibrant colors that they’re known for. However, too much heat and direct sunlight can cause the plants to wither and wilt. It’s important to select a site that has partial shade or filtered sunlight during the hottest parts of the day. In areas with high temperatures, planting flowering kale in the fall or winter can help them thrive.

Additionally, the best soil for flowering kale is well-draining and rich in organic matter. Soil that is too compact or heavy can cause root rot, while soil that is too sandy or lacking in nutrients can stunt the plant’s growth and development. Test the soil’s pH level before planting to ensure it falls within the range of 6.0-7.5, which is optimal for flowering kale growth.

Preparing the Soil

When it comes to growing thriving flowering kale plants, the quality of the soil is crucial. You want to make sure your plants have access to the right nutrients and optimal drainage for healthy growth and development.

The best soil for flowering kale is well-draining soil that is rich in organic matter. You can create the ideal soil conditions by mixing in compost or well-rotted manure into the soil before planting.

Testing Your Soil

Before planting, it’s a good idea to test your soil to determine its pH level. Flowering kale prefers a slightly acidic soil with a pH between 6.0 and 6.5.

You can easily test your soil using a pH testing kit or by sending a sample to a soil testing laboratory. Once you know your soil’s pH level, you can add the appropriate amendments to adjust it to the ideal range.

Amending Your Soil

If your soil is too acidic, you can add lime to raise the pH level. Conversely, if your soil is too alkaline, you can add sulfur to lower the pH level.

In addition to adjusting the pH level of your soil, you can also add other amendments to improve its quality. For example, you can add bone meal for phosphorus, blood meal for nitrogen, or greensand for potassium.

Creating Raised Beds

If your soil quality is poor or you have limited space, you can create raised beds for your flowering kale plants. Raised beds allow you to control the soil composition and provide better drainage for your plants.

You can create raised beds by using a frame made of wood, brick, or stone. Fill the frame with a mixture of soil, compost, and other amendments to create the perfect growing environment for your flowering kale plants.

Planting Flowering Kale

Now that you have gathered all the necessary information about flowering kale plants, it’s time to learn how to plant them. Follow these simple steps for successful planting.

  1. Choose a location that receives full sun or partial shade.
  2. Prepare the soil by adding compost or well-rotted manure to provide the necessary nutrients and improve drainage.
  3. Plant the seedlings at least 12-18 inches apart to allow room for growth.
  4. Ensure that the soil is moist, but not waterlogged.
  5. Cover the roots with soil, patting it down gently to remove any air pockets.
  6. Water the plants thoroughly after planting and continue to water them regularly, keeping the soil moist but not saturated.

Keep in mind that flowering kale plants prefer cooler temperatures and may struggle in hot summer climates. If you live in a warmer climate, consider planting them in a spot that provides shade during the hottest part of the day.

How to Grow Flowering Kale Plants: Watering and Fertilizing

Proper watering and fertilizing techniques are essential for the healthy growth of your flowering kale plants. Here is what you need to know:

Watering Flowering Kale Plants

Flowering kale plants need regular watering to thrive, especially during hot and dry weather. Water deeply, making sure that the soil is moist to a depth of at least 6 inches. Avoid overhead watering, as wet foliage can promote fungal diseases. Instead, water at the base of the plant to keep the leaves dry. Mulching can also help to retain moisture and regulate soil temperature.

Fertilizing Flowering Kale Plants

Feed your flowering kale plants every two weeks during the growing season with a balanced fertilizer. A high-nitrogen fertilizer can encourage leaf growth but may result in fewer blooms, so choose a fertilizer with a higher ratio of phosphorus and potassium. An organic fertilizer can also be a good option. Be sure to follow the instructions on the label carefully, and avoid over-fertilizing, which can burn the roots and damage the plant.

It’s best to water and fertilize your plants in the morning or evening when the temperature is cooler to prevent evaporation. You can also use a moisture meter to determine when to water your plants, or simply check the soil regularly by inserting your finger into the soil up to the second knuckle. If it feels dry, it’s time to water.

Providing the Right Care

Proper care is essential for the health and longevity of your flowering kale plants. In this section, we will cover everything from pest control to pruning.

Flowering Kale Care

One of the most important aspects of caring for flowering kale plants is watering. These plants require consistent moisture, but overwatering can lead to root rot. Water deeply once a week, ensuring the soil is moist but not waterlogged.

Fertilizing is also crucial for healthy growth and blooms. Apply a balanced fertilizer once a month during the growing season. Additionally, consider adding a slow-release fertilizer to the soil before planting.

Pest Control for Flowering Kale

While flowering kale plants are relatively low-maintenance, they are susceptible to some pests and diseases. Monitor your plants regularly for any signs of infestation, such as holes in the leaves or yellowing. Insecticidal soap or neem oil can effectively control most pests.

Pruning Flowering Kale Plants

Pruning is an important part of caring for flowering kale plants. Regularly removing spent blooms and yellowing leaves will encourage new growth and prolong the blooming period. Use sharp, clean shears to make clean cuts.

Tip: Don’t prune your flowering kale plants too heavily. The leaves are the plant’s main photosynthetic organs, so removing too many can weaken the plant.

By providing the right care for your flowering kale plants, you can enjoy their vibrant colors and beauty for weeks on end.

Extending the Blooming Season

If you want to enjoy your flowering kale plants for longer, there are a few tips and techniques you can try:

  • Deadheading: Remove spent blooms regularly to promote new growth and extend the blooming period.
  • Pinching: Pinch back the top growth of your flowering kale plants in the early stages of growth to encourage fuller plants and more blooms.
  • Fertilizing: Apply a balanced fertilizer once a month to provide essential nutrients for your plants’ growth and development.
  • Protecting: Cover your plants with row covers or other protective materials when the temperatures start to drop to prolong their life.

By following these simple tips, you can keep your flowering kale plants looking beautiful and colorful for longer, adding a stunning touch to your garden.

Tip: Flowering kale plants are highly tolerant of cold weather, making them a great choice for fall and winter gardens.

Harvesting Seeds

Harvesting seeds from your flowering kale plants can be a rewarding experience and is a great way to ensure that you can continue to grow these beautiful plants year after year. Here are some tips for harvesting and storing flowering kale seeds:

  1. Allow the flowering kale plant to mature completely. The flowers will dry up and turn brown.
  2. Remove the seed pods from the plant, taking care not to damage them.
  3. Place the seed pods in a paper bag and store in a cool, dry place to allow the seeds to fully dry out. This usually takes around two weeks.
  4. Once the seeds are fully dry, remove them from the pods and store them in an airtight container. Label the container with the date and variety of kale seeds, so you can keep track of them.
  5. Store the container in a cool, dry place until you’re ready to use the seeds.

When it’s time to plant your flowering kale seeds, make sure to follow the planting guide in section 5 for the best chance of success.

Tip: If you’re interested in exchanging kale seeds with other gardeners, consider joining a seed exchange program or online gardening community.

Troubleshooting Common Issues

How to Grow Flowering Kale Plants

While growing flowering kale plants can be a rewarding experience, it’s not uncommon to run into some common issues along the way. Here are some tips on how to troubleshoot and address these problems:

Pest Infestations

One of the most common problems when growing flowering kale plants is pest infestations. Aphids, whiteflies, and caterpillars are some of the most common pests that can cause damage to your plants. To address these issues:

  1. Regularly inspect your plants to detect any pests early on.
  2. Remove any visible pests by hand and dispose of them properly.
  3. Apply insecticidal soap or neem oil to the affected plants.
  4. Use row covers to prevent pests from laying eggs or accessing your plants.

By taking these steps, you can effectively control and prevent pest infestations on your flowering kale plants.

Nutrient Deficiencies

Another common issue that may arise is nutrient deficiencies in your plants. Here are some common symptoms and solutions:

NitrogenYellowing leavesAdd nitrogen-rich fertilizer or compost to your soil.
PhosphorusPoor root growth and stunted plantsAdd phosphorus-rich fertilizer or bone meal to your soil.
PotassiumWeak stems and wilted leavesAdd potassium-rich fertilizer or wood ash to your soil.

By addressing nutrient deficiencies early on, you can ensure healthy and vibrant flowering kale plants.

Other Issues

Other common issues that may arise when growing flowering kale plants include:

  • Over or under-watering: Ensure that you’re watering your plants properly and consistently.
  • Root rot: Avoid over-watering and ensure proper drainage to prevent root rot.
  • Heat stress: If your plants are exposed to excessive heat, try shading them or misting them with water.

By addressing these common issues and taking the necessary steps to care for your flowering kale plants, you can enjoy a healthy and vibrant garden all season long.


Congratulations! By now, you should have all the knowledge you need to grow beautiful flowering kale plants in your garden. With the right care, watering, fertilizing, and pruning techniques, you’ll be rewarded with a kaleidoscope of vibrant colors and textures.

Thank you for taking the time to read our guide on how to grow flowering kale plants at home. We hope it has been helpful and informative. Now, get out there and let your green thumb shine!


What is flowering kale?

Flowering kale, also known as ornamental kale, is a variety of kale that is grown for its vibrant and colorful leaves. Unlike edible kale, flowering kale is primarily used for decorative purposes in gardens and landscaping.

Can I eat flowering kale?

While flowering kale is technically edible, it is not typically grown for culinary purposes. The leaves can be tough and bitter, making them less desirable for consumption. It is best to enjoy the beauty of flowering kale in your garden rather than on your plate.

How do I care for flowering kale plants?

Flowering kale plants require regular watering to keep the soil moist but not waterlogged. They also benefit from regular fertilization to promote healthy growth. Additionally, it is important to monitor for pests and diseases and take appropriate measures for control.

How long does flowering kale bloom?

Flowering kale typically blooms in the late fall or early winter and can continue to provide colorful foliage throughout the winter months, depending on the climate. However, once temperatures rise and spring arrives, the kale may bolt and produce flowers, signifying the end of the blooming period.

Can I grow flowering kale in containers?

Yes, you can grow flowering kale in containers, as long as the containers are large enough to accommodate the plants and have proper drainage. Choose a high-quality potting mix and provide regular care to ensure the plants thrive in a container environment.

How tall do flowering kale plants grow?

The height of flowering kale plants can vary depending on the specific variety and growing conditions. However, most flowering kale plants reach a height of 12 to 18 inches, making them a great choice for adding color to borders and beds.

How do I propagate flowering kale?

Flowering kale can be propagated through seeds. To collect seeds, wait for the plant to bolt and produce flowers. Once the flowers have faded, seed pods will develop. Harvest these pods and allow them to dry before opening them to collect the seeds for future planting.

How do I protect flowering kale from pests?

Common pests that may affect flowering kale plants include aphids, caterpillars, and slugs. To protect your plants, regularly inspect them for signs of infestation and take appropriate measures, such as using insecticidal soap or organic pest control methods, to prevent further damage.

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