The Difference Between Annuals and Perennials
Welcome to Peruvian Roots Farm’s Growing Guides. Here you’ll find step-by-step instructions to grow Peruvian and garden favorites—from seed to harvest. Each guide is written by our small family farm in Mansfield, Ohio, where every seed we share helps rescue and care for abandoned cats.
Understanding Annuals and Perennials
If you’ve ever wondered why some plants come back every year while others die after one season, the answer lies in whether a plant is annual or perennial—and your growing zone plays a big part in that difference.
Knowing which plants fall into each category helps you plan your garden better, save seeds, and protect your plants during winter. If you’re not sure what a growing zone is or how to find yours, start with our guide How to Know Your Growing Zone, where we explain how climate shapes your planting decisions.
What Is an Annual?
An annual plant completes its entire life cycle—from seed to bloom to seed again—in one growing season. After that, it dies.
Examples include:
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Tomatoes
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Cilantro
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Basil
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Ají Amarillo (in colder zones)
Because annuals only live for one season, you’ll need to replant them each year. But the benefit is that they often grow quickly and bloom or fruit heavily.
What Is a Perennial?
A perennial plant lives for multiple years. After winter, it goes dormant and grows back when temperatures warm up.
Examples include:
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Mint
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Oregano
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Chives
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Ají Rocoto (in warmer zones)
Perennials save you work in the long run and are perfect for building a steady, productive garden that grows stronger every year.
How Your Zone Affects Both
Here’s where your USDA Hardiness Zone changes the rules. A plant that behaves as a perennial in one region might act like an annual in another.
For example:
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In Zone 9, Ají Amarillo can survive the winter and produce for multiple years—it behaves as a perennial.
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In Zone 6, freezing temperatures kill it, so it must be grown as an annual unless you overwinter it indoors.
That’s why understanding your zone is so important—it determines what survives winter naturally and what needs protection or replanting.
Planning Your Garden with This Knowledge
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Check each plant’s hardiness range before you grow.
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Group your perennials (like herbs) together where they can stay for years.
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Rotate your annuals (like peppers and tomatoes) each season to refresh your soil.
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Experiment with overwintering by moving sensitive plants indoors or covering them with frost cloths.
If you’d like to learn how to time your planting based on frost and temperature, read our guide When to Start Your Seeds, which shows how to plan your growing calendar step by step.
Example from Our Farm
Here at Peruvian Roots Farm in Zone 6, our Huacatay reseeds itself yearly—it behaves like an annual but returns easily when we let some flowers go to seed. Meanwhile, our perennial herbs like oregano come back stronger every spring.
Final Thought
Understanding whether your plants are annuals or perennials—and how your zone affects them—will help you garden smarter, reduce waste, and enjoy your harvests longer.