True organic gardening methods are based on feeding the soil, not plants directly - this means always and frequently using composted materials on the soils at least once a year, things like composted manures, green composts, leaf mould, spent mushroom compost, home made garden compost, etc. Based on the correct idea that if the soil is full of humus rich material, then the bio diversity will be very high, lots of activity, and plants will thrive better both from being able to access nutrients more easily, and the nutrients being available.
As for direct organic feeding of plants, I'm sure others will come up with ideas about that.

Thanks. I have done some of this so perhaps i don't need to add extra organic feed such as Comfrey liquid. I would only use in the vegetable garden or in tubs. My Gardeners world magazine is always going on about feeding things hence the contradictory advice.
Happy Gardening!

Regarding veggies, its possible that extra feed is a good idea, but they're not my thing, and particularly not organic, so I'm afraid I can't advise on that.