Using coffee grounds as fertilizer

Question

How often can I use the coffe grounds in my vegetable garden?

Answer 1

A good recommendation is 1 Tablespoon around the base of plants--worked into the soil--weekly.
You can scatter lightly around larger plants and then scratch into the soil--perhaps about a cup, weekly around shrubs.

The remainder can be composted or saved for future applications.

https://www.gardeningknowhow.com/composting/ingredients/coffee-grounds-gardening.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/diluted-coffee-for-plants.htm