How much organic fertiliser will my vegetable garden need?

How much organic fertiliser your vegetables will need will partly depend on your soil, and of course on the product you’re using.

The only way to be sure what the soil needs is to use a soil test, although home test kits can vary in accuracy (and
of course soil quality can vary across the vegetable patch, so you’ll likely need to perform several tests). However, it’s also possible to get good idea
of soil health
 by performing a few simple actions to find out its structure, compaction, workability, water infiltration and availability, and biodiversity.

Is organic fertiliser always the answer for healthier vegetables?


Sometimes, plants can struggle and it’s more to do with the levels of light or availability of water than a lack of nutrients – and sometimes it can even be
because too much fertiliser has been added!

Soil improvements such as organic matter (leaves, compost, grass clippings, straw, or a cover crop that gets dug into the soil) will help build a healthier soil structure, giving sandy soils better water retention and clay soils better drainage, aeration and permeability.

If you’ve got your soil structure sorted out, and plants are getting both enough sunlight and water, then the final piece of the puzzle for healthy, heavier-cropping vegetables is to add organic fertiliser.

Organic fertiliser is the best choice for the vegetable garden


Organic fertilisers have lower levels of nutrients than chemical alternatives – which is a good thing, as they are less likely to burn leaves if they get
splashed by a liquid feed – and they’re also slower release, offering nutrition when it’s needed, over time. In addition, organic fertilisers will improve the
soil in your vegetable garden, increasing bacterial and fungal activity, and allowing it to hold water for longer.

It is possible to over-feed using organic products, but it’s much harder to do that when using synthetic alternatives – and as long as you follow the instructions on the bag, it’s unlikely.

Gro: the perfect organic fertiliser for vegetables


Our 100% natural Gro fertiliser is made from leftover fruit from our juice and fruit farm businesses with some added grain, and is a by-product of our anaerobic digestion power facility. It’s Organic Approved by The Soil Association, and is an ideal choice for vegetables of all kinds – as well as flowers, lawns, and other garden plants. We recommend that you use Gro just two or three times during the growing season, so at 8 to 10 week intervals from early March.

It’s a versatile and easy-to-use product; you can use it mixed in with the compost or as moisture-retaining top dressing in patio containers and hanging baskets, mixed into the bottom of planting holes, worked through the soil (up to 15cm depth) across your entire veg patch, or as a mulch to suppress weeds while you feed. We recommend using 160g per sq m of our Gro organic fertiliser for vegetables.

If you’ve got any questions about using Gro as an organic fertiliser for your vegetable garden, please don’t hesitateto get in touch.