Annual vs. Perennial: What’s the Difference Between These Plants?

2022-06-30
Annual vs. Perennial: What’s the Difference Between These Plants?

You’ve probably heard plants described as annuals and perennials in gardening. Knowing the difference between annual vs. perennial plants will help you understand how each type will behave in your garden. Specifically, you’ll understand blooming times and whether the plant will survive through winter.

When deciding between annual vs. perennial plants, both offer pros and cons you’ll want to keep in mind. (There are also biennial plants in the mix.) Then, you can more easily plan a colorful, productive garden that will look gorgeous from spring to fall, all while making the most of your gardening budget.

What is an annual?

All plants have a life cycle from when a seed sprouts to when the plant dies. When a plant is described as an annual, it grows from seed, blooms, makes more seeds, and dies all within a year. You can save seeds for replanting. The baby plants may not look exactly like the parent plant, but that’s part of the fun.

Annuals vs. perennials are relatively inexpensive. They give you a lot of flower power for your money, and many bloom almost constantly until winter. Most are low-maintenance, self-cleaning plants, which means they drop their flowers naturally when the blooms finish. Other annuals need to be deadheaded to encourage the flowers to keep coming. When annuals die, you only need to pull them up and compost them.

What is a perennial plant?

Perennials live for more than one growing season. Unlike annuals, perennial plants go dormant in the winter and return the following year. Some perennial plants, like peonies, can be long-lived, returning for decades. Different perennial plants bloom at other times of the year, so you might get flowers in the spring, summer, fall, or even winter. However, you usually won’t have flowers throughout the entire growing season. Perennials don’t rebloom as often as annuals, either.

Perennial roots can survive the winter where they’re hardy. However, depending on where you live, you may need to mulch or otherwise protect them from freezing weather. Some perennials may need to be dug up and stored. Dahlias, for example, are considered perennials and can remain in the ground in regions with mild winters. But in cold winter areas, the tubers should be lifted and stored where the temperature stays above freezing.

Popular perennials include phlox, poppies, daylilies, Shasta daisies, and coneflowers, but not all are flowering plants. They can be vegetables and herbs like asparagus, rhubarb, mint, parsley, and sweet potatoes. Apples, figs, and blackberries are a few perennial fruits. Trees and shrubs are woody perennials, unlike herbaceous perennials with green, flexible stems and few or no woody parts.

What is a biennial?

Biennials finish their life cycle in just two years. They produce foliage the first year, waiting to bloom until the second year. After that, the original plant dies. Biennials include foxgloves, hollyhocks, pansies, sweet William Dianthus, and forget-me-not. Like annuals, some biennials self-sow, so it can seem like they keep returning year after year.

What should I grow: annual vs. perennial

Annuals are the top choice when you’re looking for instant gratification. They grow quickly from seeds or transplants to fill up containers or beds with color. However, you’ll need to replace them every year.

Perennials usually cost more up-front than annuals. But perennials reliably return each year, making up for their initial cost in the long run. These plants are often tricky or slow to grow from seeds, so most gardeners buy them as small plants or get them from a friend or neighbor who’s dividing their plants. When your perennial plants mature in a year or two, you can divide them to fill your garden without spending more money.

Mix annuals and perennials in your beds, borders, and containers for a gorgeous garden that will look colorful throughout the growing season. Read plant tags and labels to know when your perennials flower so you can plant them for staggered bloom times. Consider where you put your perennials, too, because they won’t be pulled up and discarded yearly, like annuals.

Annuals will flower almost constantly while perennials go in and out of flower so that you can plant for an ongoing display of different colors, shapes, and textures. If your perennials finish blooming, or even before they start, tuck annuals around them to fill in any gaps. Just be sure to combine plants with the same light and water needs. Shade-loving annual impatiens, for example, won’t last long beside perennial sun-lovers like coneflowers.

Related Article

8 Front Yard Landscaping Mistakes That Will Ruin Your Home's Curb Appeal

8 Front Yard Landscaping Mistakes That Will Ruin Your Home's Curb Appeal

Enhance your home's curb appeal by avoiding these front yard landscaping mistakes. Get expert advice on creating a visually appealing and welcoming front yard.
How to Make a Rock Garden

How to Make a Rock Garden

Learn how to build a rock garden with these tips. Find out how to choose a rock garden style, the best types of rocks to use, and how to design your garden.
24 Pink Flowers to Add Dainty or Bold Beauty to Your Garden

24 Pink Flowers to Add Dainty or Bold Beauty to Your Garden

Make a statement with our favorite pink flowers in every hue from the palest blush to the brightest magenta.
Are Mums Perennials That Will Come Back in Spring?

Are Mums Perennials That Will Come Back in Spring?

Mums in containers or garden beds can survive winter with these tips.
10 Best Types of Ornamental Grass That Are Native

10 Best Types of Ornamental Grass That Are Native

Create a gorgeous, low-maintenance landscape with these North American beauties that also support wildlife.
What Is an Arborist, and When Do You Need One?

What Is an Arborist, and When Do You Need One?

Find out what an arborist is and how to select the best arborist for your tree care needs.
This Tough-as-Nails Perennial Garden Plan Has Fuss-Free Plants

This Tough-as-Nails Perennial Garden Plan Has Fuss-Free Plants

A fuss-free perennial garden plan doesn't have to be boring. Keep the color coming all season long with this easy-care design.
This Bold Woodland Garden Plan Brims with Color and Texture

This Bold Woodland Garden Plan Brims with Color and Texture

Filled with easy-care plants, this bold woodland garden plan design is perfect for livening up a spot under a tree's canopy.
36 Container Garden Ideas to Inspire Your Own Pretty Plantings

36 Container Garden Ideas to Inspire Your Own Pretty Plantings

Use these container garden ideas to create the best-designed planter for your patio, window box, or other container planting.
How to Harvest Cilantro Leaves and Coriander Seeds

How to Harvest Cilantro Leaves and Coriander Seeds

Learn how to harvest cilantro from your herb gardens with these simple tips.
12 Tips for Growing Lettuce in Containers from Seed to Salad

12 Tips for Growing Lettuce in Containers from Seed to Salad

Take the guesswork out of growing lettuce in containers with these must-know tips, such as the best types of lettuce for pots, the right containers to use, and how often to fertilize.
4 Simple Steps for Growing Lavender in Pots

4 Simple Steps for Growing Lavender in Pots

Add fragrance and beauty to a sunny spot by growing lavender in pots. Use these planting steps and care tips to successfully grow lavender in containers.
Achieve the Perfect Blueberry Soil pH with These 9 Simple Tips

Achieve the Perfect Blueberry Soil pH with These 9 Simple Tips

Learn how to ensure your blueberry soil pH levels are just right for these acid-loving berries.
What Is an Olla Pot? Plus 10 Tips for Efficiently Watering Plants with It

What Is an Olla Pot? Plus 10 Tips for Efficiently Watering Plants with It

Olla pots simplify plant watering and reduce water waste. Here's how to make a DIY olla pot and 10 tips for using it for efficient watering.
What You Need to Know About Winterizing a Lawn

What You Need to Know About Winterizing a Lawn

Get a jumpstart on a lush, healthy lawn next spring with this guide on winterizing a lawn. Plus, get your lawn mower ready for winter storage.
How to Get Rid of Groundhogs in Lawns and Gardens

How to Get Rid of Groundhogs in Lawns and Gardens

Groundhogs do a lot of damage to gardens. Use these tips to prevent and get rid of groundhogs in a safe, humane way.
How to Identify and Get Rid of Tomato Hornworms

How to Identify and Get Rid of Tomato Hornworms

These very hungry caterpillars can quickly destroy your tomato crop. Find out how to recognize and control tomato hornworms.
How to Get Rid of Cucumber Beetles on Your Plants

How to Get Rid of Cucumber Beetles on Your Plants

Have you noticed little bugs on cucumber plants in your garden? Find out how to identify a cucumber beetle and prevent these insects from killing your cucumber, melon, squash, and other crops.
Keyhole Gardening Will Super-Charge Your Raised Beds

Keyhole Gardening Will Super-Charge Your Raised Beds

Keyhole garden beds offer easy access to produce, provide plants with nutrient-rich compost, and use less water. Learn how to create a keyhole garden.
16 Award-Winning Landscape Plants for Georgia Gardens

16 Award-Winning Landscape Plants for Georgia Gardens

Take the guesswork out of choosing landscape plants for your Georgia garden. Peruse these proven performers for all the planting inspiration you need.