Why You'll Love It
Ornamental kale is a captivating addition to any garden or container arrangement, prized for its vibrant colors and unique textures. Unlike its edible counterparts, this kale is grown purely for its aesthetic appeal. Its ruffled leaves display striking hues of purple, pink, white, and green, creating a visually stunning display, especially during cooler months when its colors intensify. Plant lovers adore ornamental kale for its ability to add pops of color to otherwise drab landscapes. It is a hardy plant that provides lasting beauty and is relatively easy to care for, making it a favorite for both beginner and experienced gardeners. Its versatility allows for use in borders, mass plantings, or as a focal point in containers, bringing a touch of elegance and visual interest wherever it is placed.
The Story
Ornamental kale, scientifically known as Brassica oleracea, shares its ancestry with edible kale, cabbage, and other cruciferous vegetables. While its precise origins are debated, it is believed to have evolved from wild cabbage found along the Mediterranean coast. Over centuries, breeders selected and cultivated varieties for their ornamental qualities, focusing on leaf color and shape rather than flavor. Although not as widely documented as its edible relatives, ornamental kale gained popularity in the 20th century as a decorative plant, particularly in Europe and North America. It is often associated with autumn and winter displays, symbolizing resilience and beauty in the face of colder weather. Its vibrant colors have made it a popular choice for adding visual interest to gardens and landscapes during seasons when other plants have faded.
Complete Care Guide
Ornamental kale thrives in cool weather and requires full sun to partial shade. Plant in well-draining soil with a slightly acidic to neutral pH. Water regularly, keeping the soil consistently moist but not waterlogged, especially during dry periods. Fertilize every 2-3 weeks with a balanced liquid fertilizer diluted to half strength, especially during the growing season to encourage vibrant colors. Deadhead any fading or damaged leaves to maintain a tidy appearance and promote new growth. Protect from extreme cold and frost, as this can damage the foliage. Mulch around the base of the plant to retain moisture and suppress weeds. Monitor for pests such as aphids and cabbage worms, and treat accordingly with insecticidal soap or neem oil.
Light Requirements
Ornamental kale needs at least 6 hours of direct sunlight per day to develop its best color. In hotter climates, providing some afternoon shade can prevent the leaves from scorching. If growing indoors, place near a south-facing window or supplement with grow lights. Insufficient light can result in leggy growth and faded colors. Rotate the plant regularly to ensure even light exposure on all sides. If the plant is not getting enough light, the colors will be less intense and the leaves may turn more green than purple or pink.
Seasonal Care
Spring
In spring, plant ornamental kale seedlings outdoors after the last frost. Fertilize regularly to promote healthy growth and vibrant colors. Monitor for pests and diseases.
Summer
Provide some afternoon shade in hot climates to prevent leaf scorch. Water regularly to keep the soil consistently moist. Monitor for pests and diseases.
Fall
Ornamental kale thrives in cool fall weather. Continue to provide adequate sunlight, water, and fertilizer. Its colors will intensify as temperatures drop.
Winter
Protect from extreme cold and frost. Mulch around the base of the plant to insulate the roots. The plant may slow down its growth during winter.
The Life of Your Kale (Ornamental)
Seedling / Juvenile
Start seeds indoors 6-8 weeks before the last expected frost. Use a well-draining seed-starting mix. Keep the soil consistently moist and provide bright, indirect light. Harden off seedlings before transplanting outdoors after the danger of frost has passed.
Adolescent
As the plant grows, gradually increase sunlight exposure. Fertilize regularly with a balanced liquid fertilizer to promote healthy growth and vibrant colors. Monitor for pests and diseases and treat promptly.
Mature
During the mature phase, ornamental kale will display its most intense colors. Continue to provide adequate sunlight, water, and fertilizer. Deadhead any fading leaves to maintain a tidy appearance.
Established
After the peak season, ornamental kale may begin to fade. Allow the plant to naturally decline or remove it to make way for new plantings. Some varieties may reseed themselves, providing new plants for the following season.
Propagation Guide
Ornamental kale is typically grown from seed, but it can also be propagated by stem cuttings.
1. Stem Cuttings: Take a 4-6 inch stem cutting from a healthy plant. Remove the lower leaves and dip the cut end in rooting hormone.
2. Plant the cutting in a well-draining potting mix.
3. Keep the soil consistently moist and provide bright, indirect light.
4. Roots should develop within a few weeks. Once rooted, transplant into a larger pot or directly into the garden.
Division is not typically used for kale. Keiki propagation is not applicable to kale.
Expert Knowledge
For the most vibrant colors, choose varieties specifically bred for ornamental purposes. 'Redbor' and 'White Peacock' are popular choices. Pinching off the central bud can encourage bushier growth. Consider companion planting with other cool-season annuals such as pansies and violas for a colorful display. Ornamental kale is relatively pest-resistant, but regular monitoring is still important. Soil pH can affect the intensity of the colors; a slightly acidic soil is ideal.
Troubleshooting
Yellow leaves
Yellow leaves can indicate overwatering or nutrient deficiency. Check the soil moisture and adjust watering accordingly. Fertilize with a balanced fertilizer to provide essential nutrients.
Brown leaf edges
Brown edges are often caused by dry air or inconsistent watering. Increase humidity by misting the plant regularly or using a humidifier. Ensure consistent watering to prevent the soil from drying out completely.
Drooping leaves
Drooping can be a sign of underwatering or root rot. Check the soil moisture and water thoroughly if dry. If the soil is waterlogged, improve drainage and allow the soil to dry out slightly.
Root rot
Root rot is caused by overwatering and poor drainage. Improve drainage by repotting the plant in well-draining soil. Remove any affected roots and treat with a fungicide.
Pests
Pests such as aphids and cabbage worms can damage ornamental kale. Treat infestations with insecticidal soap or neem oil. Regularly inspect the plant for signs of pests.
Frequently Asked Questions
What are the ideal light conditions?
Ornamental kale needs at least 6 hours of direct sunlight.
How often should I water?
Water when the top inch of soil feels dry to the touch.
When should I repot?
Repot only if rootbound, using well-draining soil.
Is it toxic to pets?
Kale (Ornamental) is generally considered non-toxic to pets and children.
How big will it grow?
Ornamental kale typically grows to 12-18 inches tall.
Can I propagate at home?
Yes, ornamental kale can be propagated by stem cuttings.
