Hello, Juan. Beans (Phaseolus vulgaris) seeds should be renewed as all seeds. If you can only cross between those at home year after year, you will gradually become weaker. It is not normal, however, that one year she is left completely abandoned… I think there may be some other problem.

Therefore, not every year, but every two or three years the seed from outside has been brought and mixed with the seed from the house in proportion to one or five. The characteristics of the plants will be mixed and strengthened. Our grandmother Joxepa always said to add the seed “brought by water.” The seed used above is more cured, placed in more unfavorable conditions and, at best, if you bring it down, it will be easier.