23 Beautiful Annual Flowers That Bloom All Summer

Last Updated on September 18, 2021 by April

23 Annual Flowers That Bloom All Summer

Annual Flowers That Bloom All Summer

Looking to add curb appeal to your home? Maybe you are looking to spruce up your backyard for mid-day lounging. Choosing flowers that will reliably bloom during specific seasons will help you create a garden that is colorful year-round. Conveniently, summer flowers are very easy to find, making gardening a breeze.

Before we get started, be sure to check out these flower bed designs for inspiration.

Drought-Resistant Annuals

Living in a dry climate doesn’t mean you can’t have a beautiful and colorful garden. These drought-tolerant annual flowers will give you gorgeous summer blossoms in even the driest weather.

Alyssum

Alyssum - Annual Flowers That Bloom All Summer

Scientific Name: Lobularia Maritima

Size: 4 to 8 inches

Zones: 7-11

Marigold

Marigold - Annual Flowers That Bloom All Summer

Scientific Name: Tagetes

Size: 6-12 inches

Zones: 2-11

Verbena

Verbena - Annual Flowers That Bloom All Summer

Scientific Name:Verbena Officinalis

Size: 38 to 40 inches

Zones: 4-8

Zinnia

Zinnia - Annual Flowers That Bloom All Summer

Scientific Name: Zinnia Elegans

Size: 1 to 3 feet

Zones: 3-10

Lantana

Lantana - Annual Flowers That Bloom All Summer

Scientific Name: Lantana Camara

Size: 2 to 6 feet

Zones: 7+

Cleome (Spider Flower)

Cleome - Annual Flowers That Bloom All Summer

Scientific Name: Cleome Hassleriana

Size: 4 to 59 inches

Zones: 10 and 11

Cosmos

Cosmos - Annual Flowers That Bloom All Summer

Scientific Name: Cosmos Bipinnatus

Size:3 to 5 inches

Zones: 2 to 11

Centaurea

Centaurea - Annual Flowers That Bloom All Summer

Scientific Name: Centaurea Montana

Size: 12 to 28 inches

Zones: 3 to 8

Blanket Flowers

Gaillardia - Annual Flowers That Bloom All Summer

Scientific Name: Gaillardia

Size: 12 to 18 inches

Zones: 3 to 9

Petunias

Petunias - Annual Flowers That Bloom All Summer

Scientific Name: Petunia Juss.

Size: 6 to 12 inches

Zones: 10 and 11

Deer Resistant Annuals

Deer are absolutely adorable but can wreak havoc on your flower garden. If you have an abundance of deer in your area, you will have a less stressful time planting these deer-resistant summer annual flowers.

Lobularia

Lobularia - Annual Flowers That Bloom All Summer

Scientific Name: Lobularia Maritima

Size: 4 to 6 inches

Zones: 7 to 11

Vinca

Vinca - Annual Flowers That Bloom All Summer

Scientific Name: Catharanthus Roseus

Size: 6 to 18 inches

Zones: 7 to 9

Brazilian Jasmine

Mandevilla - Annual Flowers That Bloom All Summer

Scientific Name: Mandevilla Sanderi

Size: 20 feet

Zones: 9+

Heliotrope

Heliotrope - Annual Flowers That Bloom All Summer

Scientific Name: Heliotropium

Size: 1 to 4 feet

Zones: 11 and 11

Dahlia

Dahlia - Annual Flowers That Bloom All Summer

Scientific Name: Dahlia Pinnata

Size: 4 to 5 feet

Zones: 8 to 11

Verbena

Verbena - Annual Flowers That Bloom All Summer

Scientific Name:Verbena Officinalis

Size: 38 to 40 inches

Zones: 4-8

Snapdragon

Snapdragon - Annual Flowers That Bloom All Summer

Scientific Name: Antirrhinum

Size: 16-24 inches

Zones: 8 to 9

Marigold

Marigold - Annual Flowers That Bloom All Summer

Scientific Name: Tagetes

Size: 6 to 12 inches

Zones: 2 to 11

Wax Begonia

Wax Begonia - Annual Flowers That Bloom All Summer

Scientific Name: Begonia x semperflorens-cultorum

Size: 6 to 18 inches

Zones: 9 to 11

Bluemink

Ageratum - Annual Flowers That Bloom All Summer

Scientific Name: Ageratum houstonianum

Size: A few inches to three feet

Zones: 9 to 10

Poppy

Poppy - Annual Flowers That Bloom All Summer

Scientific Name: Papaver

Size: 3 to 5 feet

Zones: 6 to 8

Geranium

Geranium - Annual Flowers That Bloom All Summer

Scientific Name: Pelargonium

Size: 4 to 48 inches

Zones: 7 to 8

Common Sage

Salvia - Annual Flowers That Bloom All Summer

Scientific Name: Salvia officinalis

Size: 18 inches to 5 feet

Zones: 5 to 10

FAQs About Annual Summer Flowers

What is the Difference Between Annuals and Perennials?

Knowing the difference between annual and perennial flowers will help you decide which type works better for your gardening needs. Annuals are plants that grow for just one season and that’s it. To get more of that plant, you will need to replant it each year.

Perennials will save you that extra trip to the home improvement store/nursery. This is because perennials will grow back for several years before replanting is required.

While this may make it seem like perennials are the obvious choice, there are benefits of annuals worth considering. One major upside of annuals is the extended blooming season. If you take excellent care of your annuals, you can prolong their life into the fall season.

For the best results, try planting both to find out which flowers are worth your time. There are so many to try out and it can be a very fun gardening experiment.

What is my Hardiness Zone?

For annual flowers that bloom all summer, it is best to find out what grows in your area. To find out what hardiness zone you live in, check out the USDA Plant Hardiness Zone Map. This will give you an idea of what will easily grow and what will take more effort.

Quick List of Annual Summer Flowers

Alyssum

Marigold

Verbena

Zinnia

Lantana

Cleome

Cosmos

Centaurea

Blanket Flowers

Petunias

Lobularia

Vinca

Brazilian Jasmine

Heliotrope

Dahlia

Snapdragon

Wax Begonia

Bluemink

Poppy

Geranium

Common Sage

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