How to Grow Begonias

Begonias are suitable for containers and bedding plants.

Begonia semperflorens-cultorum, also known as bedding begonias or wax begonias, are favorites of many gardeners. Their easy maintenance and profuse blooming habit make begonias an excellent choice for seasoned and amateur gardeners alike. Hardy only in U.S. Department of Agriculture plant hardiness zone 10 or warmer areas, begonias are grown as annuals in most of the country.

Things You'll Need

• Begonia plants

Instructions

1. Purchase seedlings from your local garden center after all danger of frost in the spring. Begonia seeds are dustlike and must be planted four months before the last frost date to reach bloom stage. Plant seedlings in a prepared bed or container that offers some shade. Begonias do not like full sun. After planting, water and provide a liquid fertilizer to help them settle in to their new home

2. Space begonia seedlings about eight to 12 inches apart. Begonias grow in a dense mound reaching 6 to 16 inches tall. They should be used for planters, low edging and carpet bedding. Begonias are also suitable for indoor landscaping in commercial settings.

3. Spray begonias only if necessary to treat an ongoing problem. These plants are somewhat susceptible to grey mold, leaf spots, stem rot and powdery mildew. Mealybugs and thrips are the most common insect pests. Most gardeners do not encounter any of these problems, but if they do, the begonias can be treated with organic or synthetic pesticides as needed.

4. Bring plants in before the first frost of fall, and they will grow indoors and provide a wonderful show of flowers. Begonias do not tolerate cold. Even a light frost kills them.

Tips & Warnings

• Many cultivars exist. It seems for some gardeners half of the thrill is simply choosing a color or combination of colors to grow each season.

References

• Clemson Cooperative Extension: Begonia
• University of California: Begonia