Stock flowers are indeed cold hardy. They are known for their ability to withstand cold temperatures, which makes them an excellent choice for late winter seed starting. This is especially beneficial for gardeners or small-scale flower farmers who live in cooler climates where the last frost date may be later in the year.
I have personally grown stock flowers in my own garden and have found them to be quite resilient in colder temperatures. They have thrived even when exposed to frost and chilly spring mornings. This cold hardiness is a great advantage for those who want to start their seeds early in the season and extend their growing season.
One of the reasons why stock flowers are able to withstand cold temperatures is because they come in a wide range of colors. The pigments present in the flowers can help protect them from the damaging effects of frost. Darker colored flowers, such as deep purples and rich burgundies, tend to absorb more heat from the sun, which can help keep the plant warm during chilly periods. Lighter colored flowers, on the other hand, can reflect sunlight and reduce heat absorption, which may be beneficial during hotter summer months.
In addition to their color variations, stock flowers are also known for their ability to tolerate colder temperatures due to their genetic makeup. These flowers are classified as “cool-season” annuals, meaning they are adapted to thrive in cooler climates. They are able to germinate and grow in lower temperatures, which makes them an ideal choice for early spring planting.
To further protect stock flowers from cold temperatures, you can consider using season extension structures such as a hoophouse, high tunnel, or caterpillar tunnel. These structures can help create a microclimate that is slightly warmer than the outside environment, providing additional protection for your plants. It’s important to monitor the temperature inside these structures and provide adequate ventilation to prevent overheating on sunny days.
Stock flowers are cold hardy and can withstand lower temperatures, making them a great choice for late winter seed starting. Their wide range of colors and genetic adaptation to cooler climates contribute to their ability to thrive in colder conditions. By utilizing season extension structures, you can further protect your stock flowers and extend your growing season.
