UtterlyHome.com may collect a share of sales or other compensation from the links on this page.
Organic lawn fertilizer is not only more environmentally friendly but is often also safe lawn fertilizer for humans and pets as they are made from all-natural ingredients. When comparing liquid lawn fertilizer vs granular which is best?
When you are looking into finding the best organic mix for lawns and one with minimal impact on the surrounding then you’ll need the best liquid lawn fertilizer, that is also organic. Find out when to spray grass so that yours grows more resilient to pests and diseases which in turn also reduces the need for pesticides.
Table of Contents
Best Organic Fertilizer for Lawns
Check out the best natural fertilizers available online today and get to work to create a lush green, healthy and environmentally friendly.
1. Neptune’s Harvest Hydrolyzed Fish & Seaweed
Fish proteins and seaweed are popular for organic grass fertilizer ingredients and Neptune’s Harvest combines these two ingredients to create a complete blend of nutrients.
Fish meal makes vegetation grow stronger by increasing the fertility of the soil. It is also a rich source of nitrogen, phosphorus, and potassium which further encourages your grass to grow.
Seaweed also contains these three nutrients in addition to traces of magnesium, zinc, and iron. The benefit of using seaweed in the mix is that the results appear faster since seaweed does not need to decompose in the soil for the soil and vegetation to absorb its nutrients.
2. Espoma Organic Lawn Food
This natural lawn food by Espoma is great for when you are looking for a slow-release method. This granular booster contains pasteurized poultry manure, feather meal, and gypsum.
This product focuses on delivering nitrogen to your soil as its composition is 8-0-0. Apply Espoma Organic Lawn Food just before the spring to help grow strong and healthy grass in your backyard.
Espoma sells in large 30 lbs bags and multipacks. One pack is enough to cover up to 5000 square feet. Being made of all-natural ingredients and free of any chemicals, this is a safe fertilizer for children and pets.
3. Milorganite Nitrogen
Do you already have a nice full area of grass, but is it looking pale? Then go for this natural lawn fertilizer which is nitrogen and iron-rich mix by Milorganite that encourages chlorophyll production for greener grass.
This natural lawn fertilizer composition contains 4% non-staining iron to give your grass a boost of green color. It also uses a slow-release formula to prevent the grass from growing at a fast speed which makes it easier for you to keep your backyard well-trimmed.
4. Pearl Valley Organix Corn Gluten
A natural alternative to a blended is corn gluten. Corn gluten is high in nitrogen with an N-P-K value of 8-0-0 and prevents weed from growing. Corn gluten prevents seeds from sprouting which is how it also prevents certain types of weeds from invading your lawn.
However, this property also means that you can only apply corn gluten meal once your grass is fully grown and lush. Corn gluten is non-toxic so it is perfectly safe for your kids and pets to run around on after the treatment has been sprayed or spread.
How to Choose the Best Organic Lawn Fertilizer
Finding the best organic fertilizer for lawns is already quite a task but finding one that is a natural fertilizer for grass adds another layer of properties that you need to research and understand. These are 6 main types of organic lawn food, each with their own composition of nutrients.
| Type of Organic Fertilizer | Main Nutrients | Use |
| Fish Meal | Nitrogen, potassium, phosphorus | Quick-release |
| Shellfish Meal | Nitrogen, phosphorus, calcium | Slow-release |
| Blood & Bone Meal | Nitrogen | Increase soil fertility before planting |
| Animal Manure | Nitrogen, microorganisms | Increase soil fertility at any time |
| Greensand | Potassium, micronutrients | Best for clay soil |
Other common natural ingredients are seaweed, corn gluten, and food waste.
Once you know the effects of these ingredients you can choose the most appropriate one for your lawn. Don’t forget to check the type of soil and grass you have and how this responds to the ingredients.
On the packaging, check how much area one package can cover and how this translates to the cost. Also, check when the fertilizer should be applied and how often to feed your lawn since this also affects the cost.
Don’t take the word ‘organic’ on the label as proof of the product’s quality. Check the ingredients and when possible also check the source of the ingredients.
It is also worthwhile to do your research on a new brand. Unfortunately, it is also used just for marketing so make sure that you are purchasing quality and not just a label.
