How to feed the roses?

HOW TO FEED THE ROSES ON THE GROUND AND IN A POT WITH A DELICIOUS FERTILIZER?

Reading that well of practical information that is the book THE GARDEN OF THE OLDER LADIES which we will talk about (soon) in the article “The ancient English garden care” we see that “[…] You discover a lot of things by chance. We are very good at discovering almost everything by chance. The first fanatical use of detergents, when they first appeared after the war, caused grease to form in the washing water. The fat, clotted into bubbles, in turn formed large greasy cakes in the drain under the kitchen window. We were in London and there was still rationing, and throwing away what might have looked like some kind of edible soup was no good. We buried her in the middle of the night at the bottom of the garden not far from the roots of a climbing rose that had always been a bit skimpy. That year the rose blossomed beautifully and has blossomed ever since.

We have always continued to feed the roses with fat, sometimes asking the butcher to keep some scraps away. […] “

The ladies in question, Maureen and Briget Boland, also recall that if the garden is not fenced and is at the mercy of wild animals or particularly adventurous dogs this food could be excavated, but in all other cases the attempt is not lost even with the leftover fat from cooking a meat, for example.