Images Depict Mature Plants
Onyx Red Ornamental Pepper
Capsicum annuum 'Red Onyx'
Onyx Red Ornamental Pepper is a great fall container plant because it gives you two things most annuals do not: deep black-purple foliage and bright red fruit on the same compact plant. It is sharp-looking, easy to use, and especially good when you need contrast with mums, grasses, cabbage, or gold foliage. Give it full sun if you want the richest color, keep the pot from drying out completely, and treat the peppers as decorative rather than something to snack on.his pepper is best suited as a filler in mixed planters. Maintains it's compact upright habit all season.
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Onyx Red Ornamental Pepper Delivers Bold Black Foliage and Bright Red Fruit
Black-Purple Foliage That Makes Fall Containers Pop
Onyx Red Ornamental Pepper is a compact annual grown for its dramatic black-purple foliage and glossy red ornamental peppers. The dark leaves create a striking backdrop for the bright fruit, giving patio pots, porch planters, mixed containers, and fall displays a bold color combination that stands out instantly.
This is the kind of plant that brings instant contrast to seasonal designs. Use it with golden mums, orange celosia, purple fountain grass, ornamental cabbage, trailing sweet potato vine, pansies, calibrachoa, or chartreuse foliage to create a rich autumn look. It also fits beautifully in Halloween-themed containers, modern patio pots, and small garden spaces where dark foliage makes other colors look brighter.
Shiny Peppers Add Color From Summer Into Frost
Onyx Red produces small ornamental fruits that start out dark purple to black and mature to shiny red. This color change gives the plant more than one season of interest, with dark fruit blending into the foliage early and bright red peppers standing out later as the display matures.
The peppers are held against the compact foliage, making the entire plant look full and decorative. The small purple flowers are not the main feature, but they help lead into the colorful fruit show. With good sun and warm weather, Onyx Red can carry strong ornamental value from summer into fall.
Compact Growth for Pots, Borders, and Mass Plantings
Onyx Red Ornamental Pepper stays naturally compact and well-branched, making it easy to use in containers and small garden spaces. It is an excellent choice for patio pots, porch planters, window boxes, mixed annual containers, seasonal displays, and front-of-border color.
Because it holds a neat habit without heavy pruning, Onyx Red is also useful for mass plantings and annual beds. Plant several together for a dramatic carpet of dark foliage and red fruit, or use one plant as a bold focal point in a mixed container. Its compact size makes it especially helpful where taller annuals would feel too large or messy.
Full Sun and Heat Bring Out the Best Color
Onyx Red performs best in full sun, where the foliage develops its darkest purple-black color, and the plant produces the strongest fruit display. Bright light is especially important for the dramatic foliage effect. In too much shade, plants may look greener, fruiting may be reduced, and the overall display may be less intense.
This ornamental pepper is also heat-tolerant, making it a strong choice for summer and fall containers when many cool-season accents are not ready yet. Plant it in well-drained potting mix or garden soil, water regularly during establishment, and allow the soil surface to dry slightly between waterings. Good drainage is important in containers, especially during rainy fall weather.
Easy Seasonal Color With No Deadheading Needed
Onyx Red is a low-maintenance annual that does not need deadheading to stay attractive. The ornamental value comes from the foliage and fruit, so there are no spent blooms to manage the way there are with many flowering annuals. A little regular watering and full sun are usually enough to keep the display looking sharp.
The fruits are grown for decoration, not for snacking. Like many ornamental peppers, the fruit may be very hot and should be treated as an ornamental unless specifically grown and labeled for culinary use. Place containers where small children and pets are not tempted to pick or chew the peppers, especially in porch and patio displays.
2018 AAS Flower Winner
| Hardiness Zone: | 9-11: grown as an annual in most of the United States |
|---|---|
| Mature Height: | 6 to 12 inches |
| Mature Width: | 6 to 12 inches |
| Sunlight: | Full Sun |
| Soil | Well-drained soil or quality container potting mix |
| Water | Dry to normal; water regularly in containers and during establishment |
| Bloom Time / Color | Small purple flowers from late spring or summer into frost |
| Foliage: | Black |
| Soil Condition: | Dark purple to black foliage, especially in high light |
| Ornamental Features | Black-purple foliage, glossy red fruit, compact habit, heat tolerance, fall container color |
| Wildlife Value | Primarily ornamental; flowers may be visited by small pollinators |
| Resistance | Heat tolerant; generally easy care in full sun and well-drained soil |
| Landscape Uses | Fall planters, patio containers, porch pots, mixed annual containers, borders, annual beds, Halloween displays, mass plantings |
How to Care for Onyx Red Ornamental Pepper
Before you buy Onyx Red Ornamental Pepper, read the care instructions to keep this plant healthy and thriving.
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How should I plant Onyx Red Ornamental Pepper?
Plant Onyx Red Ornamental Pepper in full sun with well-drained soil or a quality container potting mix. For containers, choose a pot with drainage holes and enough room for the root system to develop. Full sun is important because bright light helps bring out the dark purple-black foliage color. Set the plant so the top of the root ball is level with the surrounding soil. Backfill gently, water deeply, and place the container or planting bed where it will receive strong light and good airflow. Space plants about 6 to 8 inches apart when using them in beds or grouped seasonal displays.
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How often should I water Onyx Red Ornamental Pepper after planting?
Water Onyx Red Ornamental Pepper deeply after planting and keep the soil lightly moist while the plant establishes. In containers, check moisture often because pots dry out faster than garden beds, especially in full sun and hot weather. Water when the top inch of soil begins to dry. Once established, Onyx Red can handle dry to normal moisture, but it will look best with consistent watering. Avoid letting containers sit in standing water. Good drainage helps prevent root problems and keeps the plant compact, colorful, and attractive through the season.
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When should I fertilize Onyx Red Ornamental Pepper?
Fertilize Onyx Red Ornamental Pepper at planting with a balanced slow-release fertilizer or use a light liquid feed during the growing season if the plant is in a container. Container-grown annuals often benefit from modest feeding because nutrients wash out with regular watering. Avoid overfertilizing with high-nitrogen fertilizer. Too much nitrogen can push leafy growth without improving the fruit display. The goal is a compact, well-branched plant with dark foliage and plenty of ornamental peppers.
When and how should I prune Onyx Red Ornamental Pepper?
Onyx Red Ornamental Pepper usually does not need pruning. It was selected for a naturally compact, well-branched habit, so it should stay tidy without pinching or deadheading in most containers and garden beds. If a stem becomes damaged or out of shape, trim it back lightly with clean pruners. Remove the plant after frost damages the foliage and fruit, or compost it at the end of the season if disease is not present. In frost-free climates, it may persist longer but is still often used as a seasonal ornamental.
