The best garden fertilizer varies. Flowers, for instance, have different needs than green plants. Soil also influences fertilizer choice. A soil test will reveal nutrients a fertilizer must supply. Getting to know your plants yields more useful information. Barring this, buy a "balanced fertilizer," which will meet the needs of most plants.
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S. Johnson is a freelance writer and editor of both print and film media who specializes in making the complex clear. A freelancer for over 20 years, Johnson has had the opportunity to cover many topics ranging from construction to music to celebrity interviews, learning a lot and talking to many interesting people.