Heuchera: Taxonomy, Care Tips, Ideal Growing Conditions, Pests and Diseases & Much More

Coral bells are one of the various species that belong to the Heuchera genus. This perennial plant is widely grown for its foliage, with new varieties introduced every year. The plant is rich in nectar that helps attract pollinators like hummingbirds, butterflies, and bees. 

Heuchera are mounds with a woody rootstock at their base and bear small bell-shaped flowers that begin to bloom in spring or early summer. Their leaves are rounded, lobed, hairy, and evergreen or semi-evergreen, depending upon the climate. 

Read the article to learn more about the Heuchera plant’s growing process, care tips, taxonomy, ideal growing conditions, and much more. 

Taxonomy and Ideal Growing Conditions for Heuchera 

Coral bell belongs to the Saxifragales family. The genus Heuchera has various species; one of them is coral bell that are perennial. The plant is native to North America and thrives in partial sunlight. It blooms in various hues of white, pink, red, cream, and coral. For more general information, here is the taxonomic overview and ideal growing conditions of the plant: 

Botanical name	Heuchera spp.
Common names	Coral bell
Kingdom	Plantae
Order	Saxifragales (or Rosales in older classifications)
Family	Saxifragaceae (Saxifrage family)
Genus	Heuchera L.
Native area	North America
Season of interest	Late spring through mid-summer
Hardiness	4 to 9 USDA Zones
Light Requirements	Partial sun to shade
Maintenance	Low
Type	Perennial
Flower colour	Red, white, pink, cream, and coral
Soil	Evenly moist, rich, well-drained, loose, and humus-rich soil
Water Requirements	Moderate
Mature size	6 to 18 inches tall and 12 to 24 inches wide
Fertilizers	None to very little
Toxicity	Non-toxic for both pets and humans

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Heuchera Care Tips

Coral bells grow well when properly cared for. From location to water requirements, here are some of the essential heuchera care tips:

1. Choose a location that receives direct morning sunlight and is partially shaded at noon. Certain species thrive in full sunlight, but they require more watering. 
2. Use well-drained, organically rich soil with a slightly acidic pH level between 6 and 7.
3. Ensure that there is good drainage available, especially in shaded areas. This is because too much water can dampen the soil, which further leads to the rotting of the plant’s crown.
4. Though coral bells can tolerate drought, try to keep the soil moist. Ensure you water the soil more often on extremely sunny days and reduce it in winter.
5.  In spring, feed coral bells with a half-inch layer of compost or a light, slow-release fertilizer. Avoid over-fertilising the soil because it hampers flower production. 
6. Mulch around the plant base in winter. This protects the soil from getting extremely cold and maintains soil temperature. 
7. Pruning coral bells in early spring helps prevent the plant from crowding new growth. 
8. In late fall, remove the yellow or dead leaves and stems. 

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How to Grow Coral Bells

Coral bells can be easily grown from seeds. The pure species are much more reliable and easier to grow than the hybrid ones. Try to get the seeds from a nursery. Here are some of the steps that I follow to grow coral bells flowering plants:

1. In late fall or early spring, sprinkle the Heuchera coral bell seeds on the soil. Ensure you do not cover the seeds because they need light to germinate. 
2. Water the soil using a spray nozzle. Make sure to keep the soil moist. 
3. In around 4 to 6 weeks, the seeds will germinate.
4. Once established, harden off the plants for around 10 to 15 days.
5. If you desire to transplant the seedlings, 15 days is the right time. 
6. Keep the plant well-watered for the first year. Use organic compost to keep the soil rich. 

Propagating Coral Bells 

Coral bells are usually propagated by dividing the root clumps either in fall or spring. Propagating is essential because the plant lives about 4 to 4.5 years, and dividing it helps prevent it from dying. 

Here are 3 simple steps to propagate a mature Heuchera plant:

1. Using a shovel, dig up the root clump in fall or spring. 
2. Cut the root clump into pieces. Ensure that each piece has growth shoots. 
3. Prepare the soil by blending it with rich, organic compost. Then replant the divisions. Avoid covering the root crowns. 

Quick tip

1. I generally avoid planting coral bells in a pot because it might not grow appropriately. 
2. Overwinter, lightly mulch around the plant base. It helps maintain soil temperature, which allows the plant to survive longer. 

Read more: How To Grow Cucumbers at Home? Planting, Care and Harvesting Explained

Pests and Diseases Associated with Heuchera Plant

Usually, coral bell is a carefree plant, but it gets affected by several fungal diseases and pests. Below is the list of pests and diseases associated with the Heuchera plant along with their solutions:

Pests and diseases	Solution
Powdery mildew	Powdery mildew appears like white powder on the leaves. This can be cured by rubbing alcohol concentrate on the infected leaves.
Rust	Rust can be cured by spraying the plant with a copper- or sulphur-based fungicide or gently spraying neem oil on the plant leaves. Also, ensure you remove the infected leaves.
Bacterial leaf spot	Bacterial leaf spots are usually caused by improper airflow. Make sure the saplings are planted with the proper gap of around 18 to 30 inches. This will ensure proper air circulation and healthy plant growth.
Weevils and foliar nematodes	The larvae of the weevils can bore into the crowns and roots of coral bells. You must handpick them and remove the infected part of the plant. Further, use organic pesticides like neem oil to keep the plant healthy and safe.

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Takeaways 

Coral bell is one of the most popular plants that belong to the Heuchera genus. This perennial can be planted either in fall or spring. It blooms in various hues of pink, red, white, and coral. The plant thrives in partial shade and requires regular watering. 

If you are someone who wants to make your garden aesthetically pleasing and pollinator-friendly at the same time, coral bells must be on your list. With a little care, they will live for at least 4 years. 

Happy planting!

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