![]() ![]() To prevent water spotting or burning of the leaves on sunny days, it is best to water earlier in the morning or later in the afternoon. The later is especially problematic for newly transplanted begonias as they are most sensitive to wet growing media. It is important to maintain moderate moisture in the growing medium, but avoid both significant dry down and extended periods where the growing medium stays wet, especially in poor weather conditions. Watering frequency often impacts the quality and shrink of a begonia crop as many are sensitive to root rot. As a result, water tests are used to design fertilizer programs for crops, including begonias. Water quality has a direct influence on the availability of nutrients and pH of the growing medium. It is always recommended to complete a comprehensive water analysis (alkalinity, EC, pH and potential nutrients) prior to beginning production. For most varieties, the recommended starting and growing-on pH of the growing medium is 5.2 – 6.0. Begonias grow well in a broad pH range, but prefer more acidic media. ![]() These growing media are composed of sphagnum peat moss that will retain water and nutrients and professional grade perlite and/or composted bark that provide drainage and aeration for the growing medium. Growing media that are classified as ‘high porosity’, such as PRO-MIX ® HP MYCORRHIZAE, or PRO-MIX ® BRK, are the ideal products to use for growing begonias. Cultural guidelines to consider: Growing Mediumīegonias prefer a well-drained, well-aerated soilless medium that has good water retention. The cultural guidelines below pertain to post-transplant of plugs and liners, not for plug or liner production. Know the details and growing requirements of the begonia varieties that you are planning to grow and produce those crops that will perform best in your greenhouse environment. However for the grower, each species of begonia has different cultural guidelines that need to be followed to ensure successful propagation and growing. Begonias are relatively easy for the homeowner to take care of, whether they are planted indoors or outside. Begonias are known for their brilliant flowers and fancy foliage. ![]()
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