Home Plants Dieffenbachia Reflector – Dumb Cane

Dieffenbachia Reflector – Dumb Cane

by gardeningit
Dieffenbachia Reflector

Dieffenbachia Reflector is a beautiful tropical shrub with strikingly gorgeous and rich foliage. Its dark-green leaves have white to yellowish flecks and marks all over them, giving this plant an exotic look. These leaves have whitish-green veins running over their blades. The large leaves are held up by white, herbaceous stems.

This perennial plant is very popular as a houseplant because it is easy to grow and easy to maintain. It is quite adaptive too. Dieffenbachia Reflector can grow even in low light. It can be placed in office spaces, living rooms, or bedrooms; it can add a statement to any space.

Common Name

  • Dumb Cane


  • Family: Araceae
  • Subfamily: Aroideae
  • Genus: Dieffenbachia

About the Genus Dieffenbachia

Dieffenbachia is a genus of flowering plants. These plants are popular for their flecked leaves and striking foliage. These shrubs are native to the tropical regions of Mexico, Argentina, and the West Indies. Due to their toxicity, these plants are also known as Dumb Cane and Mother-in-law’s tongue.

Origin and Distribution

This beautiful plant was originally cultivated and bred in Central and South America. Due to its striking appearance, it is widely grown in tropical regions.

Dieffenbachia Reflector Features

Foliage and Stem

This wonderful plant has large dark-green leaves with different variegated patterns. Its leaves have white or yellow flecks and a deep whitish vein. The leaves grow on multiple stems growing out of a single base.


Dieffenbachia Reflector is a Chinese evergreen plant that remains fresh and functional throughout the year. Its lovely foliage does not shed all of its leaves at once. Its leaves only fall when each of them has grown old or dry.


This wonderful shrub attains a height of 5 feet normally. It matures when it reaches a height of 3 feet. If grown outdoors, its height can reach up to 10 feet. However, inside the wall, it rarely grows this tall. It can still fill up your living room corner with its tall height and wide leaves.

Temperature Tolerance

Dieffenbachia reflector is a warmth-loving plant. It can tolerate tropical temperatures. Too much heat is not good for its pretty foliage. High temperatures can scorch its leaves. You must not place it under the direct, hot sun. Also, it is not winter-hardy. It can get chilly injuries if left outdoors in winters.

Humidity Tolerance

This evergreen shrub is a tropical plant that is fond of high humidity. However, it is quite tolerant of low humidity levels. It can easily thrive in normal household humidity, which is pretty much low than the humidity levels in rainforests. This beaut can regulate the humidity around it on its own.


Dieffenbachia Reflector plant is quite drought-tolerant. It is capable of storing some water in its stems and leaves that help it going in conditions of low water availability. If you forget to water this plant in a week, this might not be a problem. You can also leave it as it is when you go on a vacation.

Pressure Tolerance

Another cool feature of this tropical shrub is that it is tolerant of a certain amount of neglect. It can also bear external pressure. But make sure no hard object is pressing against its foliage, or otherwise, it can hurdle its growth.

Disease and Pest Resistance

This adorable plant can fall prey to bacterial blight. There is no way to treat the infected parts, so it is better to cut them off before these parts infect the whole plant.

Ants and mealybugs are two types of pests that attack this plant. Ants can lead to the onset of a fungal infection, and mealybugs suck sap from the plant’s stem. Both are harmful to the healthy growth of your plant, and thus, these must be removed. Rub a cotton ball dipped in rubbing alcohol over the stem and leaves. This practice will help you to get rid of these pests.


This dumb cane plant is a fast-grower that reaches its mature height in no time. If you have bought a baby Dieffen and want to décor your living room with it, you would not have to wait for long; it will grow to a considerable height in three to eight weeks.

The best plant hardiness growth zones for this plant are 8, 9, and 10.


The leaves of this shrub may look beautiful, but they are quite poisonous too. Its leaves contain needle-like calcium oxalate crystal that causes mouth and GIT problems if ingested. The common problems are numbing, swelling, drooling, and oral irritation. Just to be on the safe side, keep your toddlers and pets away from this tropical beauty.


This stunning cultivar from the arum family is quite durable. If cared for properly, it can live inside your walls for many years.


Another golden feature of the dumb cane is that it is really low maintenance. It does not need its grower to worry about it every now and then; it pretty much grows on its own. The only thing that you have to do is to water it once or twice a week and feed it every month. That’s pretty much it.


In winters, this plant stops its growth and goes into its dormant period. It is better if you let it rest and not water or feed it during these months.

Dieffenbachia Reflector Care

Dieffenbachia Reflector Care involves above 50% humidity and 3-6 hours of sun per day. It must be watered about twice a week and grown in slightly acidic soil of 6.1-6.5 pH level. This lovely shrub must be fertilized every 4-6 weeks. The recommended growth zones are 8, 9, and 10.

Water Requirements

Dieffenbachia reflector is a tropical shrub that loves moist soils, but it will die soon in standing water. It means you have to be really careful with its watering schedule. Water this beautiful plant only when its upper 2 inches of soil has dried completely. If your plant has droopy leaves, it means it needs to be watered. According to these requirements, this plant needs to be watered almost twice or thrice every week during the growing season. In winters, its watering frequency drops down to only once a week.

Soil Requirements

The rich foliage of Dieffenbachia Seguine Reflector thrives in organic soil. It is best to use a mixture of peat moss, perlite, and vermiculite as its potting mix. These three ingredients enhance the soil drainage and allow enough aeration in which the roots breathe freely.

Planting this shrub in slightly acidic soil is a part of Dieffenbachia Reflector care. The pH of the soil must be maintained somewhat between 6.1 and 6.5. Two drops of vinegar in the watering can is sufficient to regulate this pH level. Just spritz its topsoil with this vinegar and water solution.


Diffused sunlight or partial shade is what helps this plant grow faster and healthier. It likes a little amount of indirect sunlight too. This is why this gorgeous plant is popular as a houseplant. It can thrive well in any corner indoors. You can also place it in your office space, where it receives ambient light exposure. If you want to grow this tropical shrub in your home garden, make sure that no direct sunrays fall on its pretty foliage; the piercing, direct sun can scorch its lovely foliage. You can protect it from direct sunlight by placing it under a shade cloth.

Temperature Requirements

The temperature requirements of Dieffenbachia Reflector are no different than other tropical plants. It prefers a warm corner at an average, healthy room temperature. The optimum temperature range for its healthy growth is 60°F to 70°F. Even if the temperature in your area rises a little bit, you need not worry because this charming plant can also regulate temperature and lower it up to 10 degrees. It will keep your indoors cool and fresh. However, if you are growing it in your home garden, protect it from chilly winds in winters; it is not frost-hardy.


Dieffenbachia Reflector is, no doubt, a tropical plant, but it does not ask for specific humidity regulations. It can do pretty well in normal household humidity levels. However, if you want to take an extra step and want to watch your Dieffen flourish to an amusing point, increase the humidity levels around it. It grows normally in regular humidity, but it loves highly humid environments. You can increase the humidity levels around it through simple tricks. Either place a bowl of water near it or place it in clusters with other plants.


This lovely shrub needs to be fed with an appropriate fertilizer every 4-6 weeks. If you have planted it just some days before, fertilize it every other week to ensure its faster early growth. Also, keep in mind to water the plant immediately after fertilizing it. This method will dilute the fertilizer and prevent it from burning the roots.

A houseplant fertilizer that is high in nitrogen will do the trick, and it will help this plant grow properly.

Grooming and Pruning

This gorgeous shrub is a large houseplant that has large, showy leaves. These leaves need to be pruned and trimmed occasionally to maintain the classy appearance of this tropical shrub. Use pruning shears to cut the dead and old leaves from your Dieffenbachia reflector plant. Never forget to sterilize its blades before pruning. This must be done at the beginning of every growing season.


This lovely dumb cane plant lives happily in the same pot for almost 1 to 2 years. It must be re-potted when its drainage holes are clogged up, and it has outgrown the size of its present pot. Whenever you re-pot your Dieffenbachia Reflector plant, move it in a pot that is one size bigger than the previous one. Also, place some pebbles at its base. This way, water will drain down more easily.

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This magnificent shrub can be propagated through stem cuttings. You can either grow these in a potting mix or water.

  1. Rooting in Potting Medium
  2. Take a sterilized, sharp blade and cut 2-3 canes of 4 inches from your Dieffen.
  3. Remove all the leaves from it and leave it overnight to dry.
  4. Take a pot and fill it with peat moss and sand.
  5. Insert the cutting into the potting mix in a way that its leaf buds are above its surface.
  6. Moisten the potting mix.
  7. Place the pot in a well-lit spot.
  8. New roots will grow in 4-8 weeks.
  9. Move the new planting to a 3-inch pot with proper potting mix.
  10. Rooting in water
  11. This method is easier and quicker than the previous one. If you are trying propagation for the first time, it is better if you do it this way.
  12. Take 4-6 inches cutting the same way as mentioned above.
  13. Put this cutting in a jar of water.
  14. Keep the jar in a warmer spot under direct sunlight.
  15. Keep changing the water daily.
  16. Once new roots grow out of the cutting, move the stem cutting to a proper 4-inch pot with a peat-based, well-drained potting mix.

Final Thoughts

Large-leafy plants are everyone’s favorite; if the leaves have striking variegations too, the plant’s beauty is increased to ten folds. Dieffenbachia Reflector is one such wonderful plant. You can always count on this plant for lighting up your rooms and giving your indoors a touch of nature.

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