• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Gardening
menu icon
go to homepage
  • Edible
  • Flowers
  • How To
  • Ornamental
  • Tips
  • Perennials
  • Berries
  • Fruits
  • Herbs
  • Mushrooms
  • Nuts
  • Vegetables
  • Composting
  • DIY Projects
  • Pests
  • Plant Diseases
  • Propagation
  • Seed Starting
  • Weeds
  • Homesteading
  • Canning
  • Preserving
  • Recipes
  • Indoor Gardening
  • Houseplants
  • Indoor Plants
  • Lawn
  • Shrubs & Trees
  • Succulents & Cactuses
  • Uncategorized
  • Privacy Policy
search icon
Homepage link
  • Edible
  • Flowers
  • How To
  • Ornamental
  • Tips
  • Perennials
  • Berries
  • Fruits
  • Herbs
  • Mushrooms
  • Nuts
  • Vegetables
  • Composting
  • DIY Projects
  • Pests
  • Plant Diseases
  • Propagation
  • Seed Starting
  • Weeds
  • Homesteading
  • Canning
  • Preserving
  • Recipes
  • Indoor Gardening
  • Houseplants
  • Indoor Plants
  • Lawn
  • Shrubs & Trees
  • Succulents & Cactuses
  • Uncategorized
  • Privacy Policy
×
Home » Ornamental Garden » Flowers

28 Longest Blooming Annual Flowers

Last Modified: Apr 23, 2022 by Mary Ward · This post may contain affiliate links · 1 Comment

Most people love flowers, whether they give them, receive them, or decide to grow them independently. They come in many types, but there are annual flowers of all descriptions to please the senses no matter what season it is. Some varieties of annual flowers bloom for more extended periods than others.

Perennial vs. Annual

You may wonder about the difference between ‘perennial’ and ‘annual’ plants. Perennials are planted once and come up every year, while annuals live for a single growing season. Some flowers bloom longer than others.

We have assembled a list of 28 annual flowers with long blooming periods to brighten your yard or garden. Let's take a look at them here:

Jump to:
  • Perennial vs. Annual
  • 1. Sweet Alyssum
  • 2. Angelonia
  • 3. African Daisy
  • 4. Celosia
  • 5. Dianthus
  • 6. Garden Cosmos
  • 7. Snapdragon
  • 8. Geranium
  • 9. Flowering Kale
  • 10. Latana
  • 11. Sweet Pea
  • 12. Marigold
  • 13. Flowering Stock
  • 14. Mealycup Sage
  • 15. English Primrose
  • 16. Pentas
  • 17. Calendula
  • 18. Petunia
  • 19. Nasturtium
  • 20. Annual Vinca
  • 21. Begonia
  • 22. Zinnia
  • 23. Cornflower
  • 24. Impatiens
  • 25. Pansy
  • 26. Poppy
  • 27. Calibrachoas
  • 28. Ageratum

1. Sweet Alyssum

purple and white alyssum flowers
Alyssum pairs well and also makes a nice border plant.
Scientific Name:Lobularia maritima
Other names:alyssum, carpet flowe
Geographic Origin:Europe
Plant Size:3-9” high and 6-12” width
Bloom Colors:purple, white, and pink
Bloom Time:fall and spring
Sun Exposure:full or partial
Hardiness Zone:5-9
Soil Type:moist and well-drained

Sweet Alyssum flowers are dainty florals easily paired with statement flowers to create bouquets. These flowers have a light fragrance that adds a delicate aroma to your flower bed or garden.

The flowers themselves are relatively small and grow in clusters. While lovely, these flowers are considered invasive in certain areas, like California. They are aggressive growers.

You can plant Alyssum in spring after the danger of late frosts is over. The flowers may fade in the summer heat but may bloom again in the fall. In areas where snow and frost are not a threat, Alyssum may be grown through the fall and winter.

2. Angelonia

Purple angelonia aka summer snapdragon
Angelonia make excellent container flowers.
Scientific Name:Angelonia angustifolia
Other names:summer snapdragon
Geographic Origin:Mexico to Argentina
Plant Size:12-24 inches high
Bloom Colors:pink, purple, and white
Bloom Time:late spring through fall
Sun Exposure:full sun
Hardiness Zone:8-11
Soil Type:well-drained

The Angelonia flower produces hundreds of flowers throughout a growing season and is a favorite of hummingbirds and butterflies. Sometimes called the "summer snapdragon," it's not related. These plants grow well in containers and thrive in hot and sunny locations. The flowers have a cascading habit and look attractive over the edge of a container or in hanging baskets.

3. African Daisy

Purple African daisies
African daisies have a lot to offer.
Scientific Name:Osteospermum
Other names:blue-eyed daisy
Geographic Origin:South Africa
Plant Size:12-36 inches high
Bloom Colors:red, light orange, darker orange, yellow, lavender, violet, and white
Bloom Time:late summer through early fall
Sun Exposure:full sun
Hardiness Zone:9-11
Soil Type:well-drained

The African daisy is a happy flower that blooms for an exceptionally long time. They add color to any bouquet and are beautiful standing alone.

4. Celosia

Celosia in multiple colors
Celosia are great to have for cut flower arrangements.
Scientific Name:Celosia argentea
Other names:red fox, wallflower
Geographic Origin:Africa and India
Plant Size:24-36 inches high
Bloom Colors:yellow, orange, red, and magenta
Bloom Time:late summer through fall
Sun Exposure:full sun
Hardiness Zone:2-9
Soil Type:well-drained

These wonderful annuals are easy to care for and come in many varieties, such as Century Mix and Dragon's Breath. Some varieties can grow quite large in the right climate, so they need places where there's room for them to expand. The flowers draw in many pollinators, especially bumblebees, and make excellent dried flowers.

5. Dianthus

close up of the favorite flower dianthus aka pinks
Fragrance is one of the many benefits of dianthus. There are annual, perennial, and biennial dianthus varieties.
Scientific Name:Dianthus caryophyllus
Other names:pinks
Geographic Origin:Europe and Asia
Plant Size:6-12 inches high
Bloom Colors:pink, magenta, or white
Bloom Time:spring to early summer
Sun Exposure:full sun/ partial shade
Hardiness Zone:3-9
Soil Type:well-drained

The Dianthus flowers are exceptionally fragrant and sport beautiful bluish-green foliage. Flower lovers everywhere lovingly refer to these flowers as "pinks."

6. Garden Cosmos

Large pink and white cosmos flowers
Big and stately, lovely in cut flower bouquets, cosmos are easy to grow.
Scientific Name:Cosmos bipinnatus
Other names:Mexican aster
Geographic Origin:Mexico, Guatemala, Costa Rica
Plant Size:24-48 inches high
Bloom Colors:pink, magenta, or white
Bloom Time:midsummer until the first frost
Sun Exposure:full sun
Hardiness Zone:2-11
Soil Type:well-drained

These flowers are easy to grow from seed. You plant them in late spring. The "Sensation mix" and "Heirloom" variety have bright flower clusters.

7. Snapdragon

multicolored mix of snapdragons in bloom
Snapdragons are an annual favorite for many reasons.
Scientific Name:Antirrhinum majus
Other names:lions-snap, lions mouth
Geographic Origin:Spain and Italy
Plant Size:12-36 inches high
Bloom Colors:red, light orange, orange, yellow, purple, violet, and white
Bloom Time:spring to fall
Sun Exposure:full sun
Hardiness Zone:7-11
Soil Type:well-drained

The blooms of the Snapdragon come in a wide variety of colors and shapes that make them ideal for adding to any type of bouquet. Snapdragons have a strong fragrance and exhibit mouth-like petals.

8. Geranium

purple geranium flowers
Easy care is the hallmark of geraniums. Some varieties are insect repelling, too.
Scientific Name:Geraniaceae
Other names:cranesbill
Geographic Origin:South Africa
Plant Size:12-28 inches high
Bloom Colors:yellow, white, orange, pink, and red, and sometimes a reddish yellow
Bloom Time:early to late spring through mid-summer
Sun Exposure:full sun
Hardiness Zone:9-12
Soil Type:well-drained

Geraniums flower through dry spells, heat, and even neglect. They can even persevere through long hot summers. You want to fertilize these flowers with an all-purpose fertilizer in time frames from 2 to 4 weeks.

9. Flowering Kale

white and purple varieties of flowering kale
Flowering kale gives a nice ornamental look late in the season.
Scientific Name:Brassica oleracea
Other names:ornamental cabbage
Geographic Origin:Mediterranean, Asia
Plant Size:12-15 inches high
Bloom Colors:purple, green, and white
Bloom Time:spring to fall
Sun Exposure:full sun/ partial shade
Hardiness Zone:2-11
Soil Type:well-drained

Flowering kale is not edible, and it doesn't taste good, but it has relatively large and beautiful leaves. This flower has the best color and flourishes in cooler weather conditions.

10. Latana

multicolored lantana flowers
Hummingbirds and butterflies will flock to Lantanas.
Scientific Name:Lantana camera
Other names:shrub verbenas, latanas
Geographic Origin:America and Africa
Plant Size:12-18 inches high
Bloom Colors:orange, white, red, yellow, and pink
Bloom Time:early summer up to the first frost
Sun Exposure:full sun
Hardiness Zone:9-11
Soil Type:well-drained

This flower has nectar-rich clusters and is a hummingbird and butterfly magnet. Latana are heat tolerant and drought resistant. In warmer winter climates, this flower acts as a shrubby perennial plant.

11. Sweet Pea

Pink sweet peas in bloom
There is nothing quite as wonderfully fragrant as sweet pea flowers.
Scientific Name:Lathyrus odoratus
Other names:bird of paradise, alfalfa
Geographic Origin:Italy
Plant Size:2-10 feet high
Bloom Colors:white, pink, and reddish-violet
Bloom Time:spring and summer
Sun Exposure:full sun
Hardiness Zone:7-10
Soil Type:well-drained

The flowers from the Sweet Pea are ingredients in the manufacture of perfume because of their delicate and sweet scent.

12. Marigold

Yellow marigold flowers up close
Marigolds just keep going all season long and help deter pests, too!
Scientific Name:Tagetes erecta
Other names:candytuft
Geographic Origin:Mexico, Guatemala
Plant Size:6-24 inches high
Bloom Colors:orange, yellow, and red
Bloom Time:early summer until late frost
Sun Exposure:full sun
Hardiness Zone:2-11
Soil Type:well-drained

The marigold is easy to start from seed and is a cinch to find as transplants in garden centers. These flowers produce cheery and sunny pom-pom-shaped flowers. These hardy flowers have excellent humidity and heat tolerance and are resistant to deer.

13. Flowering Stock

pink purple and white flowering stock
Another excellent cut flower is flowering stock.
Scientific Name:Matthiola incana
Other names:gillyflowers
Geographic Origin:Eurasia, Southern Africa
Plant Size:12-24 inches high
Bloom Colors:red, yellow, light blue, white, purple, and pink
Bloom Time:late spring
Sun Exposure:full sun
Hardiness Zone:2-10
Soil Type:moist and well-drained

The Flowering Stock has a clove-like aroma, making it ideal for bouquets or lining specific areas of your garden or lawn.

14. Mealycup Sage

Purple spikes of mealy sage flowers
Trimming the first round of flowers after blooming will force a second mealy sage flush of blooms.
Scientific Name:Salvia farinacea
Other names:mealy sage, blue sage
Geographic Origin:America, Mexico
Plant Size:12-24 inches high
Bloom Colors:purple
Bloom Time:early summer to late frost
Sun Exposure:full sun to partial shade
Hardiness Zone:7-10
Soil Type:moist, well-drained

The easiest way to plant Mealycup Sage is from transplants purchased at garden centers. This flower is an excellent vertical accent for gardens and will grow fast. If you snip off the flowers in July, the plant will quickly produce another round of flower spikes.

15. English Primrose

White primrose flowers with yellow centers
Primrose can be annual or perennial.
Scientific Name:Primula vulgaris
Other names:evening star, sundrop
Geographic Origin:Europe, Africa, Asia
Plant Size:6-20 inches high
Bloom Colors:red, white, orange, yellow, light blue, purple, pink, and white
Bloom Time:late winter, early spring, late spring, depending on the type
Sun Exposure:partial shade
Hardiness Zone:4-8
Soil Type:well-drained

The most popular variety of annual is the English Primrose. However, this late-blooming winter favorite usually has a short lifespan. This wonderful flower comes in brilliant colors that brighten any environment during the gloomy winter season.

16. Pentas

bright pink star flower clusters
Pollinators love star flowers.
Scientific Name:Pentas lanceolata
Other names:Egyptian stars, starflower
Geographic Origin:Southern Africa, Comoros, Madagascar, the Arabian peninsula
Plant Size:12-24 inches high
Bloom Colors:pink, red, and white
Bloom Time:summer
Sun Exposure:full sun
Hardiness Zone:10-11
Soil Type:moist and well-drained

This annual flower has large clusters of star-shaped flowers. These flowers are very popular with pollinators, and they have a lot of nectar.

The Pentas tolerates heat and humidity very well and works well as filler in containers or grouped with several other plants together in garden beds for splashes of color.

17. Calendula

Yellow calendula flowers
Calendulas are edible flowers--and beautiful!
Scientific Name:Calendula offiicinalis
Other names:pot marigold
Geographic Origin:Eurasia, Southern Africa
Plant Size:12-24 inches high
Bloom Colors:early summer until the first frost
Bloom Time:spring to early fall
Sun Exposure:full sun/ partial shade
Hardiness Zone:2-11
Soil Type:well-drained

This flower is a tasty treat as it is edible and is popular in soups and salads. Other uses for Calendula include essential oils to help hydrate and heal the skin.

18. Petunia

purple trumpet shaped petunia flowers
There are many ways to enjoy petunias in the ground or in containers and hangers.
Scientific Name:Petunia atkinsania
Other names:petal, posy
Geographic Origin:South America
Plant Size:10-12 inches high
Bloom Colors:pink, purple, white, red, or yellow
Bloom Time:early summer until the first frost
Sun Exposure:full sun
Hardiness Zone:9-11
Soil Type:well-drained

You can use petunias to make a carpet of blooms in garden beds or hanging, cascading over the edges of containers or hanging baskets. The blossoms of the Petunia are trumpet-shaped.

19. Nasturtium

Orange nasturtium flowers up close
Edible nasturtiums are beneficial companion plants, too.
Scientific Name:Trapaelum majus
Other names:indian cress, capucine
Geographic Origin:Mexico, Central America, South America
Plant Size:1 to 10 feet high
Bloom Colors:red, white, light orange, orange, yellow, purple, violet, and white
Bloom Time:spring to fall
Sun Exposure:full sun
Hardiness Zone:9-11
Soil Type:well-drained

The Nasturtium flower makes a perfect gift in bouquets and other arrangements for the home or office and is a very popular plant.

20. Annual Vinca

White vinca flowers with bright pink centers
Vinca is a lovely trailing accent flower.
Scientific Name:Catharanthus
Other names:Madagascar periwinkle
Geographic Origin:Europe, Northern Africa
Plant Size:12 to 18 inches high
Bloom Colors:lavender, red, pink, and white
Bloom Time:early summer to the first frost
Sun Exposure:full sun/ partial shade
Hardiness Zone:10
Soil Type:well-drained

The Vinca sports glossy green foliage that accents its pinwheel-shaped flowers. There are upright growing varieties and trailing varieties of Vinca. This plant grows best in full sun to partial shade in well-drained soil conditions and grows from 1 ft tall to 1 to 2 ft wide.

21. Begonia

pink begonia in bloom
Begonias are favored for their long-lasting rose-like blooms.
Scientific Name:Begonia
Other names:hebes, gladiola
Geographic Origin:Brazil, Mexico
Plant Size:8 inches to 3 feet high
Bloom Colors:scarlet, light orange, pink, medium orange, violet, and white
Bloom Time:summer, fall
Sun Exposure:full sun/partial shade
Hardiness Zone:8-10
Soil Type:well-drained

Many people favor Begonia, thanks to its big blooms. The Begonia also comes in many colors and pairs well in bouquets or gardens.

22. Zinnia

red pompom shaped zinnia flowers
For lovely color and cut flowers all season long, plant zinnias!
Scientific Name:Zinnia elegans
Other names:zeezee, nini
Geographic Origin:Mexico, Central America
Plant Size:2-6 inches high
Bloom Colors:pink, red, yellow, orange, purple, white, lavender, green
Bloom Time:midsummer to fall
Sun Exposure:full sun
Hardiness Zone:2-8
Soil Type:well-drained

This annual flower starts easily from seeds, and it will yield copious amounts of daisy-like flower blooms from midsummer until fall. You should plant Zinnia flowers in your garden as soon as the frost passes.

23. Cornflower

periwinkle blue bachelor button flowers
In some locations bachelor buttons may come back as perennials.
Scientific Name:Centaurea cyanus
Other names:bachelor’s button
Geographic Origin:Europe
Plant Size:1-3 inches high
Bloom Colors:blue, purplish red, violet, and white
Bloom Time:spring to summer
Sun Exposure:full sun
Hardiness Zone:2-11
Soil Type:well-drained

The Cornflower has blooms that go by the name of bachelor's buttons and are a traditional blue color, usually. Cornflower flowers have a clove-like taste, and you can eat them as a garnish for meals.

24. Impatiens

pink and salmon colored impatiens
Impatiens are a favorite annual for their easy care and ability to bloom in shade.
Scientific Name:Impatiens walleriana
Other names:busy Lizzie, patient Lucy
Geographic Origin:Asia
Plant Size:10-16 inches high
Bloom Colors:red, orange, yellow, light blue, purple, pink, and white
Bloom Time:spring, summer
Sun Exposure:partial to full shade
Hardiness Zone:8-10
Soil Type:well-drained

The Impatiens flower make excellent container plants, and many know them to be easy to grow. They are also called "busy Lizzy's" in England, and people in the US call them "patient Lucy."

25. Pansy

Pansies in a variety of colors
Pansies are one of the first flowers of the season and one of the longest lasting.
Scientific Name:Hortensis
Other names:faces under the hood, heartsease
Geographic Origin:England
Plant Size:6-9 inches high
Bloom Colors:myriad colors (red, black, white, and yellow, to name a few)
Bloom Time:spring to summer
Sun Exposure:full sun
Hardiness Zone:7-10
Soil Type:well-drained

Pansies are the most popular flower, hands down. These plants are perfect for beginning gardeners, as they offer simple rewards and offer a long season of colorful blooms. You can choose a white pansy for winter, a black pansy for drama, a red pansy for autumn, or a yellow pansy for fragrance.

26. Poppy

Common red poppies in bloom
Choosing multiple varieties of poppies will keep the blooms coming.
Scientific Name:Papaver rhoeas
Other names:Flanders poppy, field poppy, common poppy
Geographic Origin:Asia, Europe, North Africa
Plant Size:9-18 inches high
Bloom Colors:red, orange, white, pink, yellow, and purple
Bloom Time:summer to early fall
Sun Exposure:full sun
Hardiness Zone:3-10
Soil Type:moist loamy

Poppies are very popular, and there are a lot of different species. Here we are considering just the common poppy. Still, you may also be familiar with P. somniferum, the opium poppy, P. orientalis, aka the Oriental poppy, and E. californica, aka the California poppy.

Keep an eye on blooming times before purchasing either seeds or potted plants because some poppies have different blooming seasons. Poppies are an excellent choice if you have containers you want to fill in your balcony or yard, as they grow well in pots.

27. Calibrachoas

Small purple and yellow Calibrachoas flowers
Calibrachoas is nice in a garden but is highly useful in containers and hanging baskets, too.
Scientific Name:Calibrachoas parviflora
Other names:cabaret, colorburst, can-can
Geographic Origin:America, Mexico, South América
Plant Size:8-10 inches high
Bloom Colors:purple, orange, blue, red, white, pink, or yellow
Bloom Time:spring to fall
Sun Exposure:full sun/ partial shade
Hardiness Zone:9-11
Soil Type:fast-draining

People often use this plant to show off their gardening skills. They work well in the garden bed or hanging baskets, planters, or window boxes. The flowers look like miniature petunias, and you can also choose a striped hybrid if you want to get creative. You can plant these flowers in small patches for ground cover.

28. Ageratum

Ageratum flowers look like little blue pom poms
Ageratums are attractive and pollinator-friendly.
Scientific Name:Ageratum houstonianum
Other names:pussyfoot, blueweed
Geographic Origin:Mexico, South America
Plant Size:4-26 inches high
Bloom Colors:white, violet, blue, or pink
Bloom Time:late spring through fall
Sun Exposure:full sun/ light shade
Hardiness Zone:7-10
Soil Type:well-drained

Ageratums are often used as bedding plants, and the pom-pom shaped blossoms are a rarity in the gardening world. They mainly come in shades of blue, though you may find colors ranging from pink to lavender, or even red.

The flowers attract pollinators such as bees, hummingbirds, and butterflies, making them a beautiful addition and pollinator-friendly option in your garden.

More Flowers

  • A gardener is planting pansies in a planter.
    Top 20 Cold Hardy Annuals for Super Early Spring Containers
  • Pericallis ‘Senetti Blue Spoon’flowers
    23 Trendiest Annuals to Plant in 2025 (With Photos)
  • Adorable mouse in the garden under a green leaf.
    10 Deer and Rodent Resistant Bulbs You Should Plant to Overwinter
  • Vibrant red flowers of English Primrose
    24 Best Winter Flowers That Bloom in the Cold

Sharing is caring!

79.3K shares
  • 78.2K

Reader Interactions

Comments

  1. Dillye

    May 10, 2023 at 3:43 pm

    How about annuals-million bells?

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Gardening site avatar

Hi, Fellow Gardeners! Welcome to the world of gardening. Enjoy the growing guides and growing tips our team of professional gardeners carefully selected.

April Gardening:

  • A gardener is plating a tomato seedling.
    6 Step Blueprint for New Vegetable Gardeners: Where to Start!
  • A basket full of freshly harvested Snow Peas.
    What’s the Difference Between Different Types of Peas?
  • Pea brush supporting young pea plants.
    Pea Brush: The Free and Easy Way to Support Pea Plants!
  • A gardener with a basket full of freshly harvested peas.
    6+ Easy to Grow Short Pea Varieties

Recent

  • Pea brush is used as support for peonies.
    Using “Pea Brush” to Support Perennials -- Easy and Free Flower Support!
  • Frost damaged rhubarb plant in the spring.
    Can You Eat Rhubarb That Gets Hit By Spring Frost?
  • Different types of vegetable transplants hardening off before planting.
    Does Hardening Off Make Garden Transplants Frost Hardy?
  • A glass jar of picked beets on a table.
    18 Best Fruits and Vegetables to Grow for Canning and Preserving

gardening.org is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate, we earn from qualifying purchases.

Footer

About

  • Privacy Policy

Contact

  • [email protected]

As an Amazon Associate, I earn from qualifying purchases.

Copyright © 2023 Gardening LLC.