Top 10 Fertilizers for Thriving August Herbs in Zone 10

August is a crucial month for herb gardeners in Zone 10, as the warm weather promotes vigorous growth. Proper fertilization ensures your herbs stay healthy, flavorful, and productive. Here are the top 10 fertilizers to help your herbs thrive this August.

1. Organic Compost

Rich in nutrients and beneficial microbes, organic compost improves soil health and provides a slow-release source of nutrients for herbs like basil, thyme, and parsley.

2. Fish Emulsion

This liquid fertilizer is high in nitrogen, promoting lush, green foliage. It’s ideal for herbs that need a boost in leafy growth during the hot summer.

3. Seaweed Extract

Seaweed extract provides trace minerals and growth hormones that enhance herb vitality and stress resistance in the heat of August.

4. Blood Meal

High in nitrogen, blood meal encourages vigorous leafy growth, especially for herbs like cilantro and basil that thrive with extra nitrogen.

5. Bone Meal

This slow-release fertilizer supplies phosphorus and calcium, supporting root development and overall plant health in herbs like rosemary and sage.

6. Epsom Salt

Rich in magnesium and sulfur, Epsom salt enhances chlorophyll production, leading to vibrant green herbs and improved flavor.

7. Balanced Organic Fertilizer

A balanced organic fertilizer with equal parts nitrogen, phosphorus, and potassium supports overall herb growth and flowering.

8. Compost Tea

Liquid and easy to apply, compost tea supplies beneficial microbes and nutrients that boost herb health and resilience against pests.

9. Organic Liquid Kelp

This organic fertilizer promotes vigorous growth, enhances stress tolerance, and improves herb flavor profiles.

10. Manure-Based Fertilizer

Well-composted manure provides a rich source of nutrients, supporting healthy, productive herbs during the warm August days.