Sunflowers are without a doubt the summer flowers par excellence. The robust, often very tall flowers delight gardeners and flower lovers for many months. To the question: When do sunflowers bloom, you will find the answer here.
When are sunflowers blooming?
Sunflowers generally bloom from June to October, depending on sowing and planting dates, warmth, moisture and nutrient content of the soil. Their flowering period ends with the first frost as they cannot tolerate sub-zero temperatures.
Sunflowers bloom from summer to frost
As early as summer, the first sunflowers shine in their beautiful yellow, orange and reddish tones.
The sunflower blooms from June to October. How long and when sunflowers bloom also depends on environmental factors and planting times.
In any case, the sunflower's flowering period ends with the first frost. Unfortunately, the plant, which comes from North and Central America, cannot tolerate sub-zero temperatures.
When sunflowers bloom depends on various factors
- Sowing date
- Planting date
- Warmth
- Moisture
- Soil nutrient content
Sunflowers take a long time to develop their beautiful flowers. That's not surprising given the size of the flowers.
Sunflowers are not hardy. They may therefore only be planted outdoors after the Ice Saints or sown directly outdoors at the end of April. To ensure earlier flowering, it is therefore worth bringing the flowers indoors.
Sunflowers bloom longer in sunny weather
Their name already says it all: sunflowers need sun to thrive and bloom for a long time. In rainy summers it often happens that the flowers literally rot due to the moisture. The flowering period is then very short.
Sunflowers need a lot of nutrients. Therefore, fertilize regularly.
Tips & Tricks
Sunflowers are not only available in the typical yellow. Some varieties are colored orange, others a dark red - the flowers can be double or undouble. Even two- and multi-colored sunflowers are on the market.