Petunia temperatur The ideal temperatures for petunias are roughly 60 degrees Fahrenheit to 75 degrees Fahrenheit during the day and 55 degrees Fahrenheit to 65 degrees Fahrenheit at night. They can tolerate temperatures all the way down to about 40 degrees Fahrenheit, but frost and freezing temperatures will damage and ultimately kill the plants. 1 toppa petunia 2 New Frost Tolerant Petunias. Petunia ‘Below Zero’ is a frost-hardy petunia that has been in development for several years. The grower claims that the petunia can tolerate temperatures down to 14 degrees F. ( C.). Reportedly, this bushy petunia will survive through winter frost and snow to bloom with pansies and primroses in early spring. 3 skillnad på surfinia och petunia 4 Planting. Petunias need full sun, or they will become spindly. They don’t tend to flower well in shade. The soil should drain well and not stay overly wet, especially in containers. It should also be moderately fertile to promote the best growth. Amend poor soil with finished compost prior to planting. 5 Step 1: Prepare seed-starting containers with moist, well-draining soil. Step 2: Plant your galaxy petunia seeds just barely below the soil's surface. Step 3: Place the plants in a cool area with plenty of bright, indirect light or full sun. Continue keeping the soil consistently moist. 6 Petunias will grow best in full sun and well-drained soil that is kept moist. If you're planting petunias as a groundcover, be sure to space plants 12 to 18 inches apart. Petunias should be given at least 1 to 2 inches of water every 7 to 10 days once established. Light, frequent waterings should be avoided as it will encourage shallow rooting. 7 petunia ampel 8 Petunia Temperatur och Luftfuktighet Sjunker temperaturen ytterligare kan plantan ta skada utav detta. 9 Plantera petunia från frö - hur sår man. 10 Petunias prefer temperatures between 57 and 65 degrees Fahrenheit ( degrees Celsius) at night and 61 to 75 degrees Fahrenheit during the day ( C.). Petunias, however, typically thrive in temperatures as low as 39 degrees Fahrenheit (4 degrees Celsius), but they are unquestionably not perennials that can withstand the winter in most. 11 Petunias can tolerate cold temperatures down to 32°f (0°c). Petunias are a popular choice for gardeners due to their vibrant colors and ability to bloom all summer long. However, if you live in an area with cooler temperatures, you may wonder how much cold your petunias can tolerate. While petunias are generally considered to be a warm. 12