When does laburnum bloom? All information about the flowering period

the Laburnum (bot. Laburnum) with their numerous flowers are among the most beautiful plants that can be found in German gardens. Each inflorescence can bear a multitude of golden-yellow flowers that bloom for a long time and stand out against the color of the foliage. Despite its toxicity, it is part of the landscape. If you have a laburnum in the garden, the question often arises when it is in bloom.

Heyday

When does Laburnum bloom?

The laburnum species are plants of the same genus within the legume family (bot. Fabaceae) and are originally from south and south-east Europe. Their winter hardiness makes them an excellent candidate for planting in Central Europe. Naturalized in the 17th century. In order to determine the direct time of flowering of the genus, the three species have to be compared with one another, as they do not all flower at the same time. This allows you to perfectly coordinate which species you bring into the garden.

Laburnum species

Common laburnum (bot. Laburnum anagyroides)

• the flowering period of Laburnum anagyroides begins in the warmer regions of Germany, especially in the south and southwest, in early or mid-April
• on average, they bloom from early or mid-May to June with their striking flowers

Alpine laburnum (bot. Laburnum alpinum)

• In contrast to Laburnum anagyroides, Laburnum alpinum flowers about two weeks later, from mid-April or mid-May to June
• Due to its origin south of the Alps, it is used to cooler temperatures, but for this reason the flower shows later

Precious gold rain (bot. Laburnum watereri 'Vossii')

• this hybrid is often provided with an even more abundant amount of flowers and presents them at the same time as Laburnum alpinum
• the warmer it is, the longer it keeps its flowers, sometimes even two weeks longer until late June or early July

Many gardeners use the different flowering times of the laburnum species to provide their garden with the golden yellow flower decoration over a long period of time. Since the species are almost identical in their growth and can only be differentiated on the basis of a few characteristics, it is possible to place the laburnum species in the garden so that the flowers can be seen from the beginning of April to the end of June. While the common laburnum first loses its flowers, the alpine and precious gold rain are still in full bloom afterwards.

Tip: When holding a rain of gold, be sure to pay attention to proper care and its toxicity. If the growth of the plant is unnecessarily stressed, the flowering may fail during the year, which means you have to wait a year longer until the next opportunity.

Flower rot

Only bloom in old age

Many laburnum owners who grow the plant from seeds themselves wonder for the first few years whether the plant is doing well. The reason for this is the flower rot that is typical of Laburnum. A possible bloom can only be expected after five years, often even after eight to ten, as the laburnum must first establish itself in the garden in order to bloom. If you want to bring the attractive tree into your own garden, you should implement this instead using a cutting or a potted plant. These often bloom after four years, as they are developed earlier than freshly grown young plants.

Tip: The older the specimen that you purchase for your garden, the faster you can count on it to flower. Fully grown plants are more rarely offered, which you can easily delight with their abundance of flowers in summer.

Likelihood of confusion

Danger of confusion: heyday of the Indian golden rain

If you decide on a laburnum species, you have to be careful that it does not match the right Laburnum species with the tubular cassia (bot. Confuse cassia fistula). This is often referred to as the Indian laburnum due to the extremely similar flowers, but the care, the location and even the flowering time differ greatly from one another. The tube cassia is a tropical plant that is not winter hardy. For this reason, the heyday of this "golden rain" differs significantly from the other species.

• Flowering time in Central Europe from July
• Flowering time in the tropics as early as May

The cooler it is in your region, for example near the Alps or in the Ore Mountains, the greater the likelihood that the plants in the garden will not bloom at all. Then the sapling should be kept in the tub in the winter garden so that it stays warm enough and can sprout flowers.