If you want to add pretty colors to your garden, plant perennial Coral bells. This plant is not just about its delicate flowers; it also has stunning foliage in vibrant shades.
About Coral Bells
Coral bells (Heuchera), also known as alumroot. They come in various foliage colors, including bronze, purple, and more. These versatile perennials thrive in woodlands, rock gardens, containers, borders, and even as ground cover. The best time to plant them is in late fall or early spring, as they grow moderately. However, remember that they’re short-lived, and they tend to die out without regular division after a few years.
When to Grow Coral Bells
For best results, plant coral bells in late fall or early spring. These perennials can spread up to 3 feet, so space them a few feet apart. Whether you grow them in garden beds or containers, they’ll thrive in both settings.
How to Grow Coral Bells From Seed
You can grow coral bells from seed, but the results may be unpredictable if you’re collecting seeds from hybrid plants. For more consistent growth, opt for commercial seeds. If you prefer to propagate by seed collection, start with pure species rather than nursery hybrids. These are easier to find through specialty nurseries or online retailers.
- To grow coral bells from seed, sprinkle them on the soil surface in late fall or early spring. Don’t cover them, as they need light to germinate. If starting indoors, plant the seeds a couple of months before transplanting.
- Germination takes anywhere from two to eight weeks. Once the seedlings are established, harden them off for about 10 days before transplanting them outdoors after the last frost.
- During their first year, keep them well-watered.
- They’re low-maintenance. Just provide well-draining, nutrient-rich soil and some relief from extreme heat.
Coral Bells Care
Coral bells are incredibly easy to grow if you don’t overwater them. Since many species originate from rocky cliffs with excellent drainage, they don’t tolerate sitting in water.
Each variety has different light requirements. Some thrive in full sun, while others may scorch in intense sunlight. Before planting, check the specific needs of your chosen variety to ensure the best growing conditions.
Light
Most coral bells prefer partial shade, especially in warmer climates. Too much sun can fade their vibrant colors and scorch their leaves. However, if planted in overly damp, shady spots, they may develop fungal diseases. If you notice any issues, move them to a drier location with better air circulation.
Soil
Coral bells do best in humus-rich soil with an acidic pH between 6.0 and 7.0. Proper drainage is essential, especially in shaded areas. Excess moisture can lead to crown rot, which can quickly damage the plant.
Water
Coral bells have moderate water needs and prefer consistently moist soil. While established plants can tolerate some drought, they’ll thrive with about an inch of water per week. If grown in full sun, be sure to provide extra water, as their shallow roots will need additional moisture during hot, sunny days.
Temperature and Humidity
Coral bells are hardy in most regions, depending on the variety. Some Heuchera varieties can tolerate cold but struggle in warmer zones below 6. Most coral bells prefer dry air, but Heuchera villosa, native to the southeastern U.S., thrives in heat and high humidity.
Coral bells’ crowns may rise above the soil line in regions with harsh winters due to freezing and thawing. Winter mulching can help prevent this, so be sure to check periodically to ensure the roots stay covered and protected.
Fertilizer
Feed coral bells in the spring by adding a half-inch layer of compost or a small amount of slow-release fertilizer. These plants have light feeding needs, so avoid heavy applications of quick-release fertilizers, as they can hinder flowering.
For container-grown coral bells, use a water-soluble fertilizer to replenish nutrients that wash out of the soil.
Pruning
Deadheads spent flowers regularly to extend the blooming period of coral bells. This can encourage the plant to produce a second wave of blooms. Some varieties may even continue to bloom sporadically throughout the growing season.
Pests and Problems
Coral bells can be vulnerable to black vine weevils and strawberry root weevils. Black vine weevils create holes in the leaves, while both types of weevils can damage the plant’s roots. If you spot larvae, remove them immediately. You can also use neem oil to discard these pests and protect your plant.
