The delphinium (lat. Delphinium) is actually a very easy plant to care for - provided the site conditions are right. The perennial is also one of the most consuming garden plants, i.e. H. it should be regularly supplied with nutrients. Otherwise the growth and flowering will be rather poor and the leaves will also turn yellow.
Why does my delphinium have yellow leaves?
Yellow leaves on delphiniums can be caused by an unsuitable location, lack of nutrients or waterlogging. In order to save the plant, it is important to optimize the site conditions and ensure a sufficient supply of nutrients without causing waterlogging.
Inappropriate location
A common reason for leaves turning yellow is the wrong location. Larkspur loves full sun, but needs loose, humus and therefore nutrient-rich and moist soil. In particular, the perennial does not like a place that is too shady or that is too firm - perhaps very clayey. In such a case, transplanting or improving the soil with plenty of compost helps.
Dark spur suffers from nutrient deficiency
Furthermore, yellow leaves are often a sign of nutrient deficiency, for example because you have not fertilized the delphinium sufficiently. If this is the case, provide the plant with readily available fertilizer, such as a liquid fertilizer (€18.00 on Amazon). Compost and other organic fertilizers are not suitable in this case because they have to decompose first.
Tips & Tricks
However, a nutrient deficiency can also occur as a result of root rot due to waterlogging. Although delphiniums need a lot of water, they cannot tolerate wet “feet”. In such a case, the plant can usually no longer be saved.
