Crotons - Colorful Plants for Indoors Use

Our topic - Crotons. In actuality the crotons we are discussing is the genus Codiaeum which is different from the genus Croton in the same family. It may be confusing but they all seem to get lumped into the same group. They are native to the Old World Tropics and the most commonly grown variety Codiaeum variegatum var. pictum is native to the Pacific Islands and Malay Peninsula.

Crotons have been popular for many years in tropical gardens and have only in the last 10-15 years become popular potted indoor plants. Most of the varieties grown during the 1970's experienced considerable leaf drop when moving the plant indoors.

Crotons are a small shrub and can reach a height of 5-6 feet. The leaves are leathery and start out green and gradually change color as it matures.

Before the 70's

Crotons were used many years ago, not as a potted plant, but in colorful arrangements. Back before South Beach, Disney World, and the Cuban missile crisis, Miami Beach was a vacation spot in the 40's and 50's. Croton leaves were used to add color and decorate the hotels' interiors. During those days crotons were used and still are today in the outdoor landscape of South Florida. They come in many shapes and a rainbow of colors, reds, pinks, yellows, rust, orange, even some purples to name a few. Crotons are unique in that it is possible to root only the leaves. These rooted leaves were then planted into low coffee table arrangements that added color and lasted for 2-3 months.

Today many interiorscapers use mums, bromeliads, and orchids for color rotation. Over the last 10-15 years new varieties have been developed in Europe and introduced to the US marketplace. These new introductions are able to maintain their color and leaves under lower light levels. Two of these popular varieties produced are Croton Norma and Croton Petra.

Croton Basics

Crotons are grown primarily for their brightly colored foliage. For this reason they need fairly high light to maintain the vibrant colors. Many new varieties will handle light levels as low as 100-200 foot candles. If the leaves are mostly green after they mature or the color intensity is poor there are a few areas to remember:

• The plants best color will develop in bright light under cooler temperatures.

• Plants grown during the summer have difficulty in producing good color. In summer, color improvement can be obtained with higher light, cooler temperatures and sometimes reduced fertilizer levels.

• Development of good color during the winter is rarely a problem when proper light is provided and fertilizer rate is not excessive.

The potting media for crotons should have good aeration but not excessive drainage since crotons will wilt rapidly if they are allowed to dry out.

Down Side

When a croton leaf is punctured, it will leak a white sap. This sap can stain clothes and irritate some people’s skin. This is not an uncommon characteristic with the croton family Euphorbiacae. One positive note, the wide range of colors far outweigh the small inconveniences caused by the sap.

With springtime right around the corner keep on the look out for crotons in your local garden center. Remember to keep in mind the following in caring for your croton.

• Keep the light levels up
• Cooler temperatures help produce better color
• Don’t over fertilize.

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