Sterile soil

Question: sterile soil

I have a problem in my garden, a corner where any plant I put in a few months dies. The last one I planted is the Lauro, but despite fertilizing and watering it is now dying. Fault in the ground? Should I take a piece of land and put new soil in it?
Thanks for your interest. Greetings.

Answer: sterile soil

Dear Paul,
before deciding which intervention to practice, it is important to understand what the problem of your garden corner is. However, he considers that plants often die due to problems related to fungi or bacteria: if a plant dies due to root rot, and after a week from the explant, you place another plant (maybe similar) in the same soil, it is very probable that the new plant is immediately hit by the rot, which is still alive and well in the ground. In general it is always good practice to remove the soil that is found around the roots of a dead plant, and also the soil that is found on the surface where leaves of the deceased plant may have fallen; this is because most of the fungi and parasites that can attack the plants survive without problems in the ground, even with rain and frost. So, it could very well be that your garden corner has no objective problem, but simply, the first plant that fell ill (for particular sensitivities, or for problems related to cultivation) left in the ground some fungal spores, or other parasites, which immediately attacked the new plants that you gradually planted. There are also plants that tend to absorb only particular salts from the soil, impoverishing them excessively: if after having explored these plants, you plant species that need the same salts, which are no longer in the ground, you will find yourself with plants which are more easily attacked by parasites because they are already suffering from nutritional deficiencies from day one. Also for this reason, when preparing a planting hole, it is good to remove the old earth and put in new ones. Having said that it is also probable that in that corner the soil of your garden suffers from particular problems: to give you an example, many gardens were built on the waste from the construction site of the house; obviously at the time when the construction site is covered with earth, the ground is not flat, but presents heaps of various types of debris: if in a corner remains of bricks and other broken coatings have been piled up, it is clear that pockets are created of air, or areas where the soil does not drain, or where the substrate is very thin. So, in any case, it is advisable that you make a good hole, to change the earth in that corner; while digging, it also checks that the ground has the right drainage, and that there are no impediments to the flow of water, which can be solved with a layer of gravel, or with drainage pipes.