WebNov 1, 2024 · When the pH is lower than 5.5, geraniums may develop brown spots on their leaves, and further still, they may not flower at all. Soil temperature for geraniums. Studies on soil temperature for geraniums showed that geraniums do best in temperatures between 64°F and 77°F (18-25°C), as they prefer cooler soil. WebJan 13, 2024 · Indoor Geraniums require a temperature of around 65°F-70°F during the day and around 55°F at night in spring and summer. Protect the plant in winter. In winter to early spring, Geranium leaves may turn their leaves yellow, and the plant may suffer from leaf fallouts due to frost injuries. ... Low Temperatures: Water inside the leaves freezes ...
Geranium Leaves Turning Yellow [Quick Fixes] - Plants Craze
WebMar 18, 2014 · Leaf yellowing can also be caused by insufficient micronutrient fertility, such as low sulfur, iron or zinc. When a nutritional problem is suspected, test the pH and EC of the growing media. … WebFeb 27, 2024 · Besides the light, you need to grow your geraniums in temperature ranges of 70-75 degrees during the day and 60-65 degrees at night. If you don’t meet the light and temperature required, the plants … thaipc support
How to Plant and Grow Geraniums - Better Homes & …
WebJan 26, 2024 · A lack of magnesium or phosphorus can also cause red leaves on a geranium. It is recommended that geraniums be fertilized every 7 to 14 days with a foliar fertilizer for flowering plants or … WebJul 14, 2024 · Garden geraniums are popular for a reason; geranium flowers boast spectacular colors and most varieties produce showy, long-lasting blooms. The plants … WebThen there are scented-leaf geraniums (Pelargonium spp.), ivy geraniums (Pelargonium peltatum), regal geraniums (Pelargonium x domesticum) and hardy geraniums (Geranium spp.). Pelargoniums don't ... synergy st michaels login