Clematis, also known as clematis, is available in many different cultivars, all of which bloom at different times of the year. With clever planting planning, you can enjoy the colorful flowers all year round.
When is the flowering time of clematis?
Clematis bloom times vary depending on the species, from spring to fall. Spring-blooming species, such as Clematis alpina and Clematis montana, bloom from April to May. Summer-flowering Clematis viticella continually produces new flowers from June to August. Multi-flowering clematis species, such as 'Dr. Ruppel', bloom from May to September.
When and how long does clematis bloom?
There are an estimated 300 different species of clematis, of which there are also numerous cultivated varieties. Each of these species has a different flowering period, so the beautiful flowers can decorate your garden from early spring to late autumn. But the different clematis differ not only in terms of flowering time, but also in terms of their appearance. There are species with large flowers as well as small ones, with monochromatic, bicolored calyxes or ones that are even multicolored.
How often does clematis bloom per year?
However, the different types of clematis differ not only in appearance and flowering time, but also in the frequency and duration of their flowering. Some clematis even bloom twice a year, for example
- 'Ashva': flowering period June to September
- ‘Darius’: flowering period May / June to August / September
- ‘Dr. Ruppel': Flowering period May / June to August / September
- ‘Multi Blue’: flowering period May / June to August / September
- ‘Nelly Moser’: flowering period May / June to August / September
- ‘The President’: flowering period May / June to August / September
These varieties are also available commercially as “multiple-flowering clematis”. They belong to the so-called sponsor group.
Which clematis blooms all summer?
Other types of clematis do not stand out for their double flowering period, but rather for their particularly long flowering period. They don't have to be persuaded to bloom again; they tirelessly form new calyxes throughout the summer. These permanent bloomers include, above all, the numerous varieties of Italian clematis (Clematis viticella):
- ‘Blue Angel’: June to August, light blue flowers
- 'Etoile Violette': 'Etoile Violette', dark purple flowers
- 'Madame Julia Correvon': June to August, strong red flowers
- 'Purpurea Plena Elegans': June to August, small red flowers
- ‘Viola’: June to August, strong purple
Clematis viticella not only blooms for a particularly long time, but is also considered extremely hardy.
Which clematis blooms in spring?
In addition to the summer-blooming clematis, there are also species that bloom in spring. These show their splendor of colors as early as April and May, sometimes - if the weather is right - even as early as March. These species include:
- Alpine clematis (Clematis alpina): long flowering period from May to August, blue-violet flowers
- Large-flowered clematis (Clematis macropetala): May to June, blue-violet flowers
- Mountain clematis (Clematis montana): May to June, pink to white flowers depending on the variety
There are also numerous cultivars of these species with slightly different characteristics. One of the most popular is the mountain clematis 'Rubens', which is considered to be particularly floriferous
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Which clematis has particularly large flowers?
The various varieties of the clematis species Clematis macropetala, for example, can be described as large-flowered. But many other hybrid varieties are also characterized by large flowers measuring more than seven centimeters in diameter. These include, for example: 'Dr. Ruppel', 'Multi Blue', 'Madame le Coultre', 'Piilu', 'Nelly Moser' or 'Rouge Cardinal'.
