On Tue, 21 May 2019 10:03:59 +0100, Roger Tonkin wrote:

I was clearing the tubs that help the spring bubls and putting
the used copmost on the veggie patch.

SWMBO asked why I did not use it again, rather than buy new.
Tactfully explained that all the nutrients would have been used
up by the bulbs and if she wanted a good displaing plants this
year it needed fresh soil. Her response, well why don't you
just add the nutrients, you've got a big bucket of Growmore in
the garage!

I wonder - is she right?

I believe she is. Earth used for growing plants is not much more than a
container for nutrients and water. That's why plants also grow when you
place them only in water with added nutrients (hydroponics inside rooms).

Of course earth, especially outside, also gives the plants stability,
protects them from frost, and provides an environment for microorganisms
that will keep producing nutrients for the plants.