Our worm cast fertiliser comes in sacks (as pictured), and it has a kind of sandy, soil-like texture. Worm castings are among the most nutritious of natural fertilisers. They are slow releasing their nutrients, meaning that you don’t need to add them as often as you would a liquid feed, for example, and using them in your veg patch can really help with plant health.
Here are three different ways that you can use worm cast fertiliser to boost your plants during the growing season:
Add a handful when you plant your veggies
Just dig a hole as normal, sprinkle in the worm cast fertiliser and plant your veg. Over time, the worm cast will start to release nutrients into the soil which will feed your plants. If you feed them this way, you shouldn’t really need to feed your plants again unless they show signs of nutrient deficiency (which you can usually spot by discoloured or patchy foliage)
Make a liquid feed
Add 2-3 handfuls of worms fertiliser to a watering can and mix well with water. Then water your crops as normal (it is best to remove the rose/sprinkler from the watering can so that it doesn’t get clogged up). We would recommend doing this once when your plants are newly planted, and then again in midsummer (unless you already added wormcast as above). For fruiting veggies like tomatoes, beans, squash, courgettes etc feed them again when plants start producing fruits.
Sprinkle over the whole plot before it rains/before watering
This is the cheat’s way of adding the worm castings to your soil (but not always as effective!) However, if you’re tight on time, or if you’re trying to get the kids involved, this is quite a quick and easy way to boost the nutrients in your soil. It’ll take a bit of time for the nutrients to work in, so go for options 1 or 2 if you do have the time/energy!