There is such a plant on the Spanish island of Tenerife, which is a gospel for beekeepers and a tragedy for the secret terrorists, and it is the wild blue thistle known as the "nine-story demon tower".
Wild blue thistle is a biennial herb of the family Comfreyaceae, the blue thistle genus, commonly known as the "Jewel Tower". It grows leaves in the first year and an upright inflorescence the following year, allowing the entire plant to grow up to 3 meters tall. This may be the reason for calling it the "Nine-Story Demon Tower".
Wild blue thistles are very easy to attract insects, especially during flowering, you may see thousands of bees gathering, because its entire plant is almost full of small flowers, and there are bees on each flower, which is why they are favored by beekeepers, and it is also a tragedy for the secret terrorists.
Although the wild blue thistle is relatively rare in the mainland, but there are also some flower friends who plant its same family of flowers, this blue thistle is not as tall as the wild blue thistle, but it is very well nourished, as long as it is provided with a dry environment and plenty of sunlight it can grow, more importantly, it can withstand the low temperature of minus 15 ° C.
Wild blue thistle can not only be used as an ornamental plant, its high content of nectar and pollen is also favored by beekeepers, but friends with secret fears still have to consider it carefully!