Proper Spacing of Begonias

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With 1,200 species and varieties, there are begonias for every type of gardener, horticulturist and landscaper. Many begonias are used as accent flowers in container gardens, while others are planted in mass to create stunningly colorful beds in formal gardens. Some varieties are grown indoors in their own pots. The growing needs of these varieties and species vary slightly from one another. Overall, these plants thrive in well-draining acidic soil. The proper spacing of begonias depends on the use and the variety of the flower.

Container Gardens

  • Rex and Reiger begonias are grown indoors and are known for their explosive blooms. The flowers cover the entire plant. When planting these specimens in their own containers, choose a small pot. The root system of this plant does well in compact containers. Using a large pot, or over-potting the plant, results in less than optimal growth. Over-watering is also a detriment to the plant. When providing the plant with moisture, use a mister to create humidity. Do not allow the plant to sit in water and do not keep the soil saturated. Repot the plant when the soil recedes from the wall of the container or if the root system protrudes from the container’s drainage holes.

    Rex and Reiger varieties are also used as accent plants in mixed container gardens. These plants have a mounding growth habit, meaning that they create colorful fills for empty spaces. Botanist Rick Schoellhorn of the University of Florida suggests planting 4-inch begonias in mixed container gardens. This allows the plant to compete for light and water without overpowering other plants in the container.

Outdoor Beds

  • Semperflorens, or wax begonias, can be grown year-round in mild climates but are most frequently grown as annuals. Gardeners plant this species of begonia in large beds to create a floor of color. Tubular begonia varieties are also grown in this manner. To allow space for growth, place the plants 8 to 12 inches apart. Tubular begonias can be cut back and stored over winter for replanting in spring.


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