Hardy perennials: These 5 plants tolerate sub-zero temperatures

(Care) tips
How to conjure up a sea of ​​flowers in your garden with hardy perennials

Perennials have two advantages over other plants: they are perennial and hardy. The easy-care and robust plants are ideal for hobby gardeners who have little time or experience. We present five varieties to you.

The ideal time to plant hardy perennials in the garden is in spring and autumn. The outside temperatures are neither too hot nor too cold. In addition, there is usually enough rain, so you don’t have to water them as often. What you should pay attention to before planting, however, is the individual needs of a plant’s location. Depending on which perennial you choose, a sunny, partially shaded or shady spot is preferred. The type of soil also plays an important role. Below we present five hardy and perennial varieties, including their special environmental needs.

These hardy perennials enchant the garden

1. Christmas rose

A robust and easy-care winter perennial is the Christmas roseIt flowers between November and March, so that your garden can be brightly colored during the cold season. Even snow cannot harm the plant (or its flowers); in frosty weather, it simply lets its leaves hang down to protect itself – when the temperature rises, the foliage straightens up again. The Christmas rose grows in almost all types of soil, but it cannot tolerate waterlogging.

2. Ornamental grasses

So-called ornamental grasses bring fresh green into the garden – such as this trioconsisting of three varieties (Festuca glauca Elijah Blue, Festuca gautieri, Festuca Golden Taipee). The hardy perennials offer a colorful range of colors – from green to blue to light green. The perennial plants grow particularly bushy and yet have fine, long stems. One of their special features is that they are drought-resistant.

3. Autumn Aster

Autumn asters are also among the hardy, bee and butterfly friendly perennials. The new breed in particular ‘Alpha®’ Light Pink has many, color-stable violet to pink flowers that will really make your garden shine – preferably in a sunny location. The perennial plant is equally suitable for beds and flower pots, requires little water and is therefore very easy to care for.

4. Sunflower

In contrast to ordinary sunflowers, the variety ‘SunCatcher®’ (a new Helianthus variety) is one of the hardy perennial flowers. The bee-friendly, perennial plant has golden-yellow flowers that last from July to October. It is important to know that if you cut off the withered stems, new ones will grow in their place. The sunflower, which is relatively easy to care for, needs nutrient-rich soil to bloom for four months.

5. Hibiscus

The perennial hibiscus ‘Summerific®’ ‘Midnight Marvel’ is also one of the hardy perennials. The new variety is said to grow even more branched and bushy than its close relatives. So that the scarlet flowers and dark leaves can develop their full splendor, you should offer the plant permeable and nutrient-rich soil – ideally in a sheltered location.

(Care) tips for hardy perennials

Depending on when hardy perennials are planted, the plants go through different stages:

Basically, hardy perennials have the property of retracting all parts of the plant that are above ground – or they die. However, this is not a problem, as the plants sprout again in spring.

Tip: Before planting a hardy perennial, you should loosen the soil and remove all weeds with strong roots. Ideally, you should mix some compost (not fertilizer) into the soil – if the soil is particularly clayey, it is a good idea to add some sand as well. This will prevent waterlogging. Last but not least, another tip is not to remove withered leaves in the autumn, as they protect the plant from the cold.

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