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How to Grow a Candy Corn Plant in Your Garden

Candy corn plant, known botanically as Cuphea micropetala or Manettia luteorubra, is a beautiful and versatile shrub that brings a burst of color to any garden or indoor space.

Named after the popular Halloween treat, this plant features vibrant flowers that resemble the tri-colored candy.

In order to keep these plants healthy and encourage flowering, it is essential to provide the right environmental conditions and care. Ensuring proper nutrient needs are met and maintaining appropriate lighting will help candy corn plants flourish in any setting while providing a bold and appealing visual display. Keep reading to learn more about how you can grow a candy corn plant in your garden.

candy corn plant

Origins and Characteristics

Species and Classification

There are various species of the candy corn plant, each with unique appearances and characteristics.

The Manettia luteorubra and Cuphea micropetala are two well-known species of candy corn plants. The Manettia luteorubra, also known as the Brazilian firecracker, is a perennial vine that features vibrant red-orange tubular flowers. The Cuphea micropetala, on the other hand, is a small semi-woody evergreen shrub that gets its name from its candy corn-like flowers, with color bands similar to the popular confection.

Natural Habitat

Candy corn plants are native to various regions of South and Central America, with the most common species found in countries such as Mexico and Brazil. These plants typically flourish in tropical and subtropical climates, where they enjoy moderate humidity and ample sunlight.

The candy corn plant is an adaptable species that has managed to grow and thrive across various terrains and climate conditions throughout its natural range.

Planting and Propagation

From Seeds

Plant candy corn seeds in a well-draining, all-purpose potting soil. Choose a container with drainage holes and fill it with the potting soil. Make a small hole in the soil and place the seed in it. Cover the seed with a thin layer of soil and water gently, ensuring the soil is moist but not saturated.

Keep the seeds in a warm and bright location, as the warmth will encourage germination. Monitor the soil to ensure it remains consistently moist to support the plant’s growth. Seedlings should emerge in a few weeks, and once they are well-developed, you can transfer them to a larger container or a garden bed.

From Cuttings

This process involves cutting a healthy stem from the parent plant, preferably with new growth, and planting it in a well-draining potting medium.

To prepare the cutting, make sure the stem is healthy, green, and firm. Remove the lower leaves from the cutting, leaving the top few intact, and cut the stem at a 45-degree angle just below a leaf node.

Dip the cut end into rooting hormone, which helps promote root production, though this step can be skipped as it’s optional. Plant the cutting into a container filled with moist, all-purpose potting soil, and ensure that a few inches of the stem are submerged. Cover the cutting and container with a plastic bag, creating a miniature greenhouse with high humidity that encourages root development.

Place the container in a bright location with indirect sunlight and maintain consistent moisture levels by misting the cutting frequently. Check for root growth after a few weeks by gently tugging on the cutting; if it resists, roots have started to form. Once the cuttings have established a healthy root system, they can be transplanted into a larger container or a garden bed and treated as a mature candy corn plant.

Following these propagation methods, whether from seeds or cuttings, should result in successful growth and vibrantly colored candy corn plants that can be enjoyed for seasons to come. Remember, for optimal candy corn plant care, maintain moist soil, provide bright, indirect light, and regularly prune to encourage bushy growth and abundant blooms.

Growing Conditions

Mina Lobata

Light Requirements

Candy corn plants thrive in full sun, which rewards them with the highest bloom count. However, they can also adapt to partial sun environments, although with fewer blooms. When growing candy corn plants indoors, placing them near a sunny window will provide them with the necessary light for healthy growth.

Temperature and Humidity

These plants prefer temperatures in the range of 60-70°F (15-21°C) and can perform well in average indoor humidity levels. Regular misting of the foliage can help maintain the ideal humidity conditions for the candy corn plant. It is important to monitor the temperature, especially in an outdoor garden, to ensure the plant stays within its preferred range.

Soil and Watering

Candy corn plants prefer moderately rich, well-drained, and slightly acidic soil (with a pH range of 6.1 to 7.5). These attributes allow the plant to take up nutrients effectively and avoid root rot issues.

When it comes to watering, the candy corn plant needs consistent moisture but should not be overwatered. Here are some watering tips:

  • Don’t let the soil get soggy, as it can lead to root rot
  • Don’t let the soil dry out completely, as this can cause stress to the plant
  • Adjust watering frequency based on the season and humidity levels, as the plant may require more water during hot and dry periods

Maintenance and Care


Candy corn plants require regular feeding to support their growth and flower production. Use a balanced, water-soluble fertilizer, either granular or liquid form, every 4-6 weeks during the growing season. This will ensure the plant receives adequate nutrients and promotes vibrant blooms. Be sure not to over-fertilize, as excessive nitrogen could lead to leggy growth with fewer blooms. In addition, consider adding compost to the soil to further improve the soil structure and provide additional nutrients.

Pruning and Pinching

Prune back any dead, diseased, or damaged branches as soon as you notice them. Removing these will help improve air circulation and prevent the spread of pests or diseases.

To encourage bushier growth and more blooms, pinch back approximately 1/3 of the new growth every few weeks during the growing season. By pinching off new growth tips, you’re stimulating the production of side branches, which can lead to a more compact and fuller plant. Regular pruning and pinching will prevent the candy corn plant from becoming too leggy.


Over time, candy corn plants may become pot-bound, with their roots overcrowding the container. To ensure the plant’s continued health and growth, repotting is necessary. Check the plant’s roots annually to see if they are circling the inside of the container or coming out of the drainage holes, which are indications that it’s time to repot.

When repotting, select a container that is 1-2 inches larger in diameter than the current pot. Fill the new pot with fresh, well-draining potting soil, and gently remove the plant from its old container. Place the candy corn plant in the new pot, filling in the sides with additional potting mix, consolidating, and ensuring proper support. Water thoroughly after repotting, and continue to provide regular care as previously outlined.


Orange trumpet, Flame flower, Fire-cracker vine over black background.

Bloom Time

Candy corn plants, also known as candy corn vines (Manettia luteorubra, inflata, or bicolor), are known for their beautiful and unique flowers that resemble the popular candy corn treat. These extraordinary plants generally bloom from late spring to early fall, providing vibrant red and yellow flower displays throughout the growing season. With proper care and suitable environmental conditions, candy corn plants produce a high bloom count, enhancing the overall attractiveness of gardens and landscapes.

Attracting Pollinators

Candy corn plants not only offer a visually appealing addition to any garden, but they are also valuable in attracting various pollinators such as hummingbirds and butterflies. The vivid and eye-catching red and yellow flowers of the candy corn plant serve as an enticing invitation to these pollinators, playing a crucial role in maintaining a healthy and biodiverse ecosystem.

To optimize your candy corn plant’s attractiveness for pollinators, make sure it receives ample sunlight, as this will encourage the greatest number of blooms. Moreover, placing these plants among other nectar-rich flowering plants can create a diversified environment, ultimately enhancing their appeal to hummingbirds and butterflies.

Pests and Diseases

Common Pests

One common pest that affects candy corn plants is spider mites. These tiny arachnids feed on the sap of plants, causing yellowing, wilting, and eventual death of leaves. Spider mites thrive in hot, dry conditions and can quickly spread from plant to plant. They can be identified by their fine webbing on the undersides of leaves.

Another common pest found on candy corn plants is aphids. They are small insects that feed on the sap from plants, leading to stunted growth and distorted leaves. To manage aphids, one can use insecticidal soap or introduce natural predators like ladybugs.

Common Diseases

Powdery mildew is a fungal disease that can affect candy corn plants. It appears as a white powdery substance on the leaves, stems, and flowers. Powdery mildew thrives in warm and humid conditions, causing stunted growth and distorted leaves in infected plants. To treat powdery mildew, remove infected leaves and stems immediately and apply appropriate fungicides.

Apart from proper plant care, it’s essential to monitor candy corn plants for pests and diseases regularly. Early detection and intervention can alleviate potential damages and keep the plants healthy and thriving.

Frequently Asked Questions

Beautiful blooming firecracker flowers in the garden

Is the candy corn plant a perennial or annual?

The candy corn plant (Nematanthus) is a perennial with semi-woody shrubs. It originates from the tropical regions and is a part of the Cuphea genus, which contains over 250 perennials and semi-woody shrubs.

How do I propagate a candy corn plant?

To propagate a candy corn plant, take stem cuttings measuring 4 to 6 inches in length from healthy, non-flowering branches. Remove the lower leaves and dip the cut end in the rooting hormone. Plant the cuttings in moist, well-draining soil and keep them in a warm, humid environment until new growth appears.

What is the size and height of a fully-grown candy corn plant?

A fully grown candy corn plant typically reaches a height of 2 to 3 feet and a spread of 1 to 2 feet. It displays vibrant, tri-colored leaves and a unique growth pattern, making it an attractive addition to your garden or indoor space.

Are candy corn plants toxic to cats?

Candy corn plants are not listed as toxic to cats. However, it’s always best to prevent your pets from chewing on your plants, as even non-toxic plants can cause digestive upset if ingested in large quantities.

Do hummingbirds like candy corn plants?

Yes, hummingbirds do enjoy candy corn plants. The bright orange and yellow flowers resemble the candy and provide nectar, which is a food source for these birds. Planting candy corn plants in your garden may attract hummingbirds and add a delightful element to your outdoor space.

Can you grow a candy corn plant indoors?

Candy corn plants make excellent indoor plants. They can thrive in bright, indirect light, and they will need well-draining soil and regular watering. As indoor plants, they can add a colorful and interesting element to your home, and their compact size makes them suitable for smaller spaces. Remember to provide adequate humidity and monitor your plant for any signs of pests or diseases.

Time to Grow Your Own Candy Corn Plant

Both the shrub and vine versions of the candy corn plant boast attractive foliage and eye-catching blooms, making them an appealing addition to your outdoor and indoor spaces.

With proper care and maintenance, these plants can thrive, adding color and fun to your garden!

For more information on gardening, check out this post on the 11 Essential Tasks and Tips for a Perfect Fall Garden!