Summer offers the ideal opportunity for gardeners to showcase a variety of Best Flowering Annuals for Summer as the days lengthen and the temperature rises. With their wide variety of colors and low maintenance requirements, flowering annuals have become a popular option among many gardeners.
In addition to adding a touch of beauty, these seasonal treasures fill the area with enticing scents, draw pollinators, and generally make it more active and inviting.
In this post we will discuss some of the best annual flowers that will flourish in the summer and turn your garden into a stunning haven of beauty.
Table of Contents
Why Flowering Annuals? The Benefits of Seasonal Color

Annual plants are a great option for adding brilliant colors to your flower gardens during the summer, whether you’re a beginner or expert gardener. Annual flowers are those whose life cycles are completed in a single growing season.
Within the course of one season, they emerge, develop, bloom, produce seeds, and finally perish. Biennials and perennials both have their charms, but annuals have a few special advantages, particularly in terms of seasonal color.
Instant Satisfaction
The satisfaction of seeing the fruits of your labor in the garden is one of its greatest pleasures. Annuals offer virtually immediate delight because they develop swiftly and blossom into lovely flowers.
You’ll be rewarded with vibrantly colored flowers that exude happiness and vitality within a few weeks of planting. That is not to say that I don’t also adore my perennial flowers; I most definitely do; however, they have a blooming cycle.
Additionally, unlike flowering annuals, they often don’t cover a complete season, depending on when and how long that bloom cycle lasts.
Low Maintenance and Easy Care Plants

Not everyone has the time or knowledge to keep up a complex garden with a wide range of plants. Best Flowering Annuals for Summer can help in that situation. The majority of annual flowers are low-maintenance and easy to care for, making them ideal for novices or people who lead busy lives.
It’s ideal to treat annuals with a slow-release fertilizer in the spring or early summer to make things even simpler for yourself. Depending on the brand of fertilizer you use, they can last anywhere between three and six months. I adore this one, and lately I’ve been using Proven Winners, one of my favorite growers.
Remember that if you actively keep up with snipping off spent blooms, annuals that love deadheading will produce significantly more flowers. Particularly if you grow some cut-and-come-again annual plants in a cut flower garden. Therefore, they will blossom more the more you cut.
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Flexible in Garden Design
Best Flowering Annuals may fit into any place, regardless of size, whether you have a large garden bed or a small balcony.
They may be directly inserted into flowerbeds, window boxes, hanging baskets, or other planting areas. Because of its adaptability, you can be imaginative and try out several kinds and color schemes to create the ideal look and feel.
28 Best Flowering Annuals for Summer Color
After discussing the advantages of annuals, let’s look at some of the greatest flowering annuals that will liven up your summer garden with color and joy.
Petunias

A traditional selection for summer annuals is petunias. There are numerous types that have a variety of hues and are renowned for their persistent blooming.
Petunias will unquestionably steal the show with their beauty, whether you favor muted hues or bold patterns. My gardens recently received several new plants, some of which are introductions from Proven Winners.
What I’m planting this year is listed below.
- Supertunia Vista Jazzberry
- Supertunia Latte
- Supertunia Vista Bubblegum
- Supertunia Vista Fuschia
- Supertunia Daybreak Charm
- Supertunia Mini Vista Indigo
- Supertunia Hoopla Vivid Orchid
- Supertunia Mini Vista Sweet Sangria
- Supertunia Saffron Finch
Best Flowering Annuals for Summer – Superbells

Superbells are a wonderful addition to any landscape because of their bell-shaped blossoms. These annuals make wonderful trailing plants and are ideal for garden borders or hanging baskets. Their abundance of blossoms will keep your garden alive and vibrant all summer long. I’m growing some brand new superbells from Proven Winners this year, and they are doing fantastic! I recently planted several in my pots. This year, I’m growing the following.
- Double Smitten Pink
- Superbells Prism Pink Lemonade
- Superbells Double Vintage Coral
- Superbells Double Redstone
- Superbells Double Chiffon
Best Flowering Annuals for Summer –Geraniums

Geraniums are valued for their colorful flowers and unusual foliage. These adaptable annuals are available in a variety of hues, including red, pink, white, and purple variations, enabling you to design eye-catching color schemes for your garden.
Geraniums are renowned for their protracted blooming period, which guarantees a summer punctuated by constant flashes of color. They are prized for their fragrant leaves as well, which release a pleasing scent when touched.
Geraniums are perfect for garden beds, borders, or containers because they grow well in sunny areas. They require well-draining soil and routine watering, but they don’t require much upkeep.
Geraniums are hardy plants that can resist dryness and heat, making them a dependable option for the sweltering summer months. Geraniums are certain to offer a touch of elegance and timeless beauty to your summer paradise, whether you decide to plant them in large numbers for a dramatic effect or scatter them throughout your garden for pops of color.
Marigolds

Best Flowering Annuals for Summer includes Marigolds. Marigolds are useful in addition to being lovely. Insects and pests are repelled by their cheery, vibrant blossoms, making them the perfect choice for companion planting in vegetable gardens.
Marigolds are robust annuals that do well in a variety of soil types and can survive high temperatures.
But what is the nicest feature of marigolds?
They look great when planted in the spring and continue to look fantastic through the first frost in the fall. Because you can use these flowers to create looks for late spring, early summer, and fall, they are excellent budget-friendly flowers.
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Impatiens
Best Flowering Annuals for Summer includes Impatiens. Impatiens are annual flowering plants that thrive in partial to complete shade and make a lovely addition to your garden’s gloomier areas. These low-maintenance plants come in a range of colors, from delicate pastels to bold hues.
Begonias

Begonias are adaptable annual shade plants that can do well in gardens with partial to complete shade. Their glossy leaves and colorful blossoms give any garden a touch of grandeur. Begonias can bloom all summer long and even into the fall if given the right care. Even in container gardens, they look fantastic! I’m cultivating these cultivars this year.
Nasturtiums (Tropaeolum majus)

Best Flowering Annuals for Summer includes Nasturtiums. Nasturtiums have vibrant, warm-colored blossoms that are not only beautiful to look at but also have a delicious, peppery flavor that is great in salads and other foods.
These simple-to-grow annuals do well in sunny, well-drained soil. Nasturtiums provide a whimsical touch to your garden by making fantastic ground covers, hanging basket decorations, or even cascading down walls.
Verbena

Best Flowering Annuals for Summer includes Verbena. The lovely annual flower verbena produces an abundance of colorful blossoms all summer long.
Verbena offers a splash of color and visual appeal to your garden beds, borders, or containers. It is available in a number of colors, including tones of purple, pink, red, and white.
Its clusters of tiny, delicate blooms lay down a carpet of beauty that entices butterflies and hummingbirds, giving your outdoor area life and movement.
The ability of verbena can withstand heat and thrive in direct sunlight is only one of its many advantages. These hardy annuals are a great option for gardens in warm locations because they can resist the intense summer heat.
Additionally, they have a lengthy flowering period, guaranteeing that your garden is brilliant and colorful all season long.
Because it only needs well-drained soil and routine watering, verbena is a comparatively low-maintenance plant. Deadheading wasted flowers will promote further flowering and aid in keeping the garden looking tidy.
Verbena is an excellent choice for both novice and professional gardeners wishing to add a dash of charm and color to their summer landscapes because of its adaptability and toughness.
- I’m raising Proven Winners ‘Superbena Pink Cashmere’ this year.
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Bacopa
Sutera, often referred to as Bacopa, is a great option for cascading down the sides of containers or hanging baskets.
These beautiful white, pink, or purple flowers give off a delicate appearance while softening the sharp edges of the rock borders and pots.
Bacopa is a heat-tolerant annual that needs little maintenance, making it ideal for time-constrained gardeners.
Several containers were filled with Proven Winners Snowstorm Giant Snowflake this year.
Cosmos

Best Flowering Annuals for Summer includes Cosmos. Cosmos are well-liked annual flowers with daisy-like blooms and fluffy leaves.
They can be found in different pink, white, and purple hues, and they give your yard a whimsical touch. Cosmos are not only attractive, but they also draw bees and butterflies, resulting in a vibrant ecology in your outdoor area.
They are frequently cultivated in gardens for cut flowers as well. What I’m planting this year is listed here! And I started each one from scratch.
- Apricot Lemonade from Cosmos
- Pink Cosmos Double Click
- White Cosmos Double Click
Calendula
One of my favorite best Flowering Annuals for Summer flowers is calendula, commonly referred to as pot marigold, and it has blossoms that are bright orange, yellow, and creamy white.
Calendula has medical qualities and is frequently employed in natural medicines in addition to its attractive beauty.
Calendula provides beauty and practicality to your garden beds and containers.
But because they draw pollinators and deter pests from plants, they also make excellent companion plantings for food gardens.
A total of 36 plants that I raised from seed and planted last year were completely destroyed by the neighborhood rabbits. You must therefore safeguard your yard if rabbits are an issue there.
What I’m growing this year is listed here.
- ‘Ivory Princess’ Calendula
- ‘Orange Flash’ calendula
Border Dahlias

When it comes to choose the best Flowering Annuals for Summer blooms, border dahlias are a show-stopper. These gorgeous blooms are a favorite among gardeners since they come in a variety of vibrant colors.
When summer flowering annuals begin to arrive, you may frequently find them at garden centers and nurseries.
They look great planted in the front of borders, where I’ve been growing them for several years.
You will receive an abundance of flowers from spring through October if you keep them well-fed and deadhead them during the growing season.
These should not be confused with tall flowers called dahlias. Contrarily, border dahlias are more compact and diminutive. This year, I purchased a few from the nursery for the zen garden.
I’m growing the following, both of which are from Proven Winners.
- Cancun’s Dahlia Dalina Grande
- Dahlia Grande Dalina Mendoza
Portulaca (Portulaca grandiflora)
Best Flowering Annuals for Summer includes Portulaca. Portulaca, often referred to as moss rose or sun rose, is an annual that can withstand drought and has succulent-looking leaves that come in a variety of vibrant hues.
These low-growing plants are ideal for rock gardens, borders, and spilling over the sides of containers since they thrive in hot, arid climates. Their blooms create an ever-changing display of beauty when they open in the day and close at night.
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Scaevola

The lovely and best Flowering Annuals for Summer includes scaevola, commonly known as fan flower, has a bloom that has a characteristic fan form.
A beautiful flash of color is added to your yard by its cascading clusters of delicate blooms, which come in colours of blue, lavender, pink, and white.
Scaevola’s trailing tendency gives a wonderful trailing look, making it particularly well-suited for hanging baskets, pots, or as a ground cover.
Scaevola stands out for its capacity to flourish in hot, dry conditions, making it a superb option for summer gardens.
It is a low-maintenance plant that only needs well-draining soil and routine watering, though it can withstand dry spells. Butterflies are known to be drawn to the flowers of scaevola, and as they flit around your garden, they will give a magical touch.
Last year, I used purple scaevola flowers to decorate my porch planters and hanging baskets. They did pretty well there and recovered quickly if occasionally submerged. They are more durable than other flowering annuals, however I still don’t advise submerging them.
However, I added Proven Winners ‘Whirlwind Pink’ to a few of the zen garden’s containers this year.
Whether you’re looking for a ground cover to cover bare spots or a trailing beauty for your containers, Scaevola is guaranteed to enchant with its unusual fan-shaped blossoms.
Euphorbia
A great option for adding texture and interest to your landscape is euphorbia, like ‘Diamond Frost’.
It has lovely little white flowers that are encircled by exquisite, lacy foliage.
Euphorbia is a robust and low-maintenance annual that fills in the spaces and weaves around other simple annual flowers since it is drought-tolerant and thrives in sunny locations.
Angelonia
Heat-loving annual angelonia, commonly known as summer snapdragon, thrives in hot regions.
Its upright spikes are covered in colorful blooms in purple, pink, and white hues. Angelonia is a lovely addition to your summer garden because it is not only beautiful but also draws butterflies.
I’m planting it this year in both my porch planters and my hanging pots. It becomes a little taller and drapes over the sides to soften the edges, making it one of the greatest container plants.
What I’m growing this year is listed below:
- ‘Angelface Cascade Blue’ is a tried-and-true winner.
- ‘Angelface Cascade Pink’ is a tried-and-true winner.
Snapdragons

Classic annuals such as snapdragons provide your garden beds vertical interest. The cottage gardens that feature these lovely blooms are stunning. come in a variety of hues and blossom in profusion all through the late spring, summer, and fall.
Because of their adaptability, snapdragons can either be left to beautify your landscape or used as cut flowers.
Keep them well-hydrated during the warmer months to keep them looking wonderful.
The summer of previous year was exceptionally hot and dry. My snapdragons thrived on rich, well-drained soil in a garden with irrigation that kept them well-hydrated three days a week, and they never faltered!
This year, I also started several different types from seed. I’m growing the following.
- Bronze and white Madame Butterfly
- Pink Madame Butterfly Rose of the Potomac
- Wedding Pink
- Light pink Costa Apricot Legend
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Hibiscus

With its big, flamboyant, and vibrant blossoms, tropical hibiscus is a real show stopper.
These annuals have flowers in vivid red, pink, orange, and yellow hues, which give your yard a hint of the exotic.
Tropical hibiscus needs plenty of sunlight and well-drained soil to grow properly in warm areas.
The hummingbirds adore them, and they are simple to grow!
Lantana
Lantana is a hardy annual that blossoms profusely in hot, sunny weather. Its little flower clusters come in a variety of hues, such as orange, pink, and purple tones.
Your garden will have more life and movement thanks to lantana, which draws butterflies and hummingbirds.
- I’m cultivating Proven Winners’ Luscious Royale Cosmo this year, and I LOVE IT!
The flower clusters range in color from pink to yellow to orange. The flowers are incredibly lovely!
Celosia
The unusual annual celosia, commonly known as cockscomb, has eye-catching, velvety flower heads that resemble flames or brains.
These vivacious flowers come in deep red, orange, and yellow hues. Celosia is a great option for summer displays because it tolerates drought and grows well in sunny areas.
In addition to looking fantastic in the outdoors, they also look fantastic in cut flower arrangements.
I had a number of self-seeders from the previous owner’s garden the previous year. They were a welcome surprise, and I hope they come back this year as well!
- This year, I didn’t start any from seed, but I’m hoping they’ll come back from last year. Let’s see!
Zinnias

For gardeners looking for summer flowers that are brilliant and durable, zinnias are a popular option.
These cheery flowers are available in a number of hues, such as red, orange, yellow, pink, and purple.
Once established, zinnias are simple to grow from seeds and require little maintenance. They make wonderful cut flowers for bouquets and are adored by butterflies.
One of my favorite flowers to grow is this one. What I’m growing this year is listed below:
- Giant Wine by Benary
- The Lime Queen
- Queen Senorita Lime Blush
- Benary’s Big Guy Carmen Rose Outrageous
Strawflowers
Everlasting flowers, commonly referred to as strawflowers, are a distinctive and attractive annual.
The papery petals of these flowers are highly coveted because they keep their color and shape even after drying. They come in many hues of white, pink, orange, and yellow, and they give your garden texture and intrigue.
Strawflowers are an excellent choice for summer displays and dried flower arrangements since they can withstand drought and thrive in sunny environments.
Gomphrena
Best Flowering Annuals for Summer includes Gomphrena. Globe amaranth, commonly known as gomphrena, is a lovely and resilient annual flower that does well in the summer heat.
Vibrant hues of purple, scarlet, white, and pink blossoms are among the many hues of its distinctive globe-shaped blooms.
Gomphrena is a fantastic option for borders, containers, or cut flower arrangements due to its compact growth habit and long-lasting blossoms.
This hardy annual is a great beauty in the summer garden because it can tolerate hot and dry weather.
With the addition of gomphrena to your collection of flowering annuals, you’ll have yet another low-maintenance, heat-loving plant to improve the attractiveness of your garden and give a whimsical touch to your outdoor environment.
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Coleus

Coleus are a common best Flowering Annuals for Summer, it is recognized for their magnificent foliage, which comes in a broad variety of colors, patterns, and textures, even though they aren’t as well known for their blooms.
Coleus leaves are incredibly fascinating, with their vivid hues of green, red, purple, and yellow, as well as their intricate patterns of stripes and speckling.
Coleus is an intriguing plant that can be placed anywhere in your yard because it can survive in both the sun and the shade.
These low-maintenance plants are ideal for sprucing up garden beds, borders, or containers with a pop of color.
Additionally, coleus can be utilized as a centerpiece or in striking combinations with other annual flowering plants. Additionally, some coleus species only have tiny, insignificant flowers, while others are kept for their foliage.
The coleus’ capacity to adjust to various lighting situations is one of its advantages. Others may handle partial shade or even grow in full shade, while some types need full sun. As a result, coleus is a great choice for locations that receive different amounts of sunshine throughout the day.
Coleus needs well-draining soil and routine watering to thrive. The plant’s growing tips can be pinched back to promote bushier growth and keep it from becoming lanky.
I’m cultivating the following Proven Winners types this year.
- A Strawberry Drop Colorblaze
- Bold Colors El Brighto
- Black Colorblaze New
The coleus plant will undoubtedly add a colorful and dynamic aspect to your summer garden with its exceptional leaves and flexibility.
Sweet Alyssum

An elegant and fragrant, best Flowering Annuals for Summer that grows well in the summer heat is sweet alyssum.
Sweet alyssum offers a sense of elegance and beauty to any garden setting with its clusters of tiny, fragile flowers.
The flowers’ delicate, romantic ambiance is accentuated by their variety of white, pink, and purple hues.
Sweet alyssum is a joy for the senses since it not only creates a beautiful show but also fills the air with its delicious aroma.
This low-growing annual is ideal for ground cover, rock gardens, and boundary borders. It can survive the heat with ease and needs little maintenance, making it a great option for both inexperienced and seasoned gardeners.
Sweet alyssum will provide a delicate touch and a delightful aroma to your summer garden, captivating both you and your guests.
Sunflowers

Sunflowers, with their brilliant yellow petals and imposing presence, are a genuine symbol of summer. These yearly giants never fail to make us grin and cheer up any garden.
Sunflowers are available in a range of sizes, from little types ideal for pots to towering individuals that can grow to remarkable heights.
Sunflowers are not only visually appealing, but their plentiful nectar and seeds also draw pollinators and birds.
They flourish in direct sunlight, soaking up the rays and illuminating our outdoor areas with a vibrant explosion of color.
Sunflowers are a cheerful way to honor the warmth and beauty of summer by planting them in your garden beds or planters. Their assertive presence and upbeat personalities will bring an unquestionable sense of joy and excitement to your garden.
Sunflowers should be sown in multiple types and planted one after the other to prolong their bloom period.
This implies that even if you only cultivate one variety of sunflower, you would start them one week, wait a week before sowing them again, and then start them again the following week.
Because many sunflower varieties are one-and-done, succession sowing will prolong their garden bloom.
- I plant Sunflower ‘Royal Hybrid’ this year.
Tithonia

Tithonia, also referred to as the Mexican sunflower, is a remarkable best Flowering Annuals for Summer, that does well in the summer heat.
Tithonia stands out in any garden because to its tall, spreading stems and big, intensely colored orange or red blossoms.
In addition to adding a vibrant flash of color, these beautiful blossoms also draw a wide variety of pollinators, such as butterflies and bees.
Tithonia is a popular choice for gardens in areas with hot summers because of its hardiness and capacity to withstand dry, hot weather.
Tithonia is certain to make a spectacular statement and create a paradise for pollinators whether it is used as a focal point in your landscape or is planted in borders.
Planting Annuals in Garden Beds and Containers
After looking at some of the best summer flowering annuals, let’s talk about how to plant them in garden beds and containers:
Garden Beds
- With a garden fork or tiller, remove weeds and loosen the soil to prepare it.
- Create a hole that is just a little bit bigger than the annual flower’s root ball.
- Make sure the root ball’s top is level with the soil before inserting the plant into the hole.
- Put garden soil on top.
- Add a fertilizer with a delayed release.
- Water thoroughly and continue to do so as needed.
Containers
- To avoid soil that has been saturated, choose containers with drainage holes.
- A well-draining potting mix should be added to the container, giving room for the root ball of your annual flower.
- The plant should be carefully taken out of its nursery container, being careful not to harm the roots.
- Making sure the plant is at the same depth as it was in the nursery container, center it in the container and fill the empty space with potting soil.
- Add a fertilizer with a delayed release.
- After planting, water thoroughly and continue frequent watering as necessary. This can entail daily irrigation during the summer.
- When determining where to put each annual flower in your garden or container, keep in mind that they all need sunlight to grow.
- Best Flowering Annuals for Summer Needs at least six hours of direct sunlight each day to survive, according to the plant tag.
- Some annuals, such as impatiens and begonias, require partial to full shade, which translates to 4 hours or less of direct sunlight.
- Keep an eye on the soil moisture as the summer goes on and water your annuals as necessary. For the flowers to continue to bloom, fertilizing is essential. I like to use a slow-release fertilizer, such as this or this, to assist encourage strong growth and lots of flowers.
- Your garden beds and containers will burst with brilliant colors all summer long if you choose the finest plants for you and your growing conditions.
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Conclusion
With the addition of these top flowering annuals, a well-designed summer garden may become a spectacular tapestry of hues, textures, and scents.
The wide variety of annuals described above can help you build a beautiful and flourishing outdoor hideaway, whether you’re searching for cascading blossoms, brilliant hues, or animal appeal.
By embracing the joy of gardening and experimenting with these gorgeous annuals, you can create a summer hideaway that will fascinate both you and your guests all season long.
Happy gardening!
FAQ
Which flowers bloom all summer?
1. Blanket flower (Gaillardia)
2. Hardy geraniums (Geranium)
3. Yarrow (Achillea)
4. Sea holly (Eryngium)
5. Bluestar (Amsonia)
6. Globe thistles (Echinops)
7. Coneflower (Echinacea)
8. Anise hyssop (Agas
tache)
What is the best flower to grow in the summer?
1. Purple Coneflower.
2. Zinnia. …
3. Blanket Flower. …
4. Verbena. …
5. Lantana. …
6. Globe Amaranth. …
7. Hibiscus
8. Aster. …
Birds and butterflies will be drawn to your garden by this gorgeous flower because of how quickly i
t grows.
Which flowers bloom in summer UK?
1. Aglaia
2. Leucanthemum x superbum
3. Papaver orientale ‘Karine’
4. Phlox paniculata ‘Windsor’
5. Salvia nemorosa ‘Amethyst’
6. Geranium ‘Orion’
7. Iris ‘Titan’s Glory’
8. Kniphofia ‘Bees’ Sunset’
9. Dianthus ‘Cranmere Pool’
What is a popular summer flower?
The signature summer flower is the hydrangea. The ball-shaped perennial comes in a wide variety, but this one is unquestionably the best. It can withstand both full sun and partial shade, and you can get it to blossom either blue or pink depending on how acidic or alkaline the soil is.
What is the longest flowering plant?
Anthurium, is the world’s longest blooming plant. Although they are a bit more expensive than the majority of houseplants, anthuriums make fantastic presents, and some of us have loved them for years because they are the ideal choice for centerpieces and tabletops. They thrive everywhere and blossom all year long.
Which flower is best for all season?
1. Black-Eyed Susans.
2. Alpine Violet.
3. Ajuga or Bugleweed.
4. African Violet.
5. Anise Hyssop.
6. Alyssum or Sweet Alyssum.
7. Begonia.
8. Annual vs. Perennial.
What is the longest flowering plant in the UK?
1) Spiderwort.2) Yarrow.3) Dahlias.4) Catmint.5) Daylily.6) English Lavender.7) Hardy Geran
iums.
Can I plant flowers in summer?
Yes, definitely you can plant flowers in summer.When selecting and planting summer flowers, whether in flower beds or containers, gardeners have a wide range of alternatives. Most summer blooming plants can be divided into two categories: Annual flowers have a single season to complete their whole life cycle.
What is the Queen of summer flowers?
Sunflower, The sunflower, or Helianthus, is dubbed the “queen of summer flowers” for good reason. The bloom not only resembles the sun. In fact, it appears to have absorbed the sun’s energy. It is brimming over with solar power!
Is there a flower that blooms all year round?
Alyssum. Alyssum can bloom all year round in climates like California because it is a warm zone perennial plant. It thrives in full sun and has tiny, fragrant white, pink, or purple blooms.
Is it good to plant in summer?
Yes, Trees that have been balled and burlap ped or cultivated in containers can both be planted in the summer. The quick response is that yes, you can plant most plants in the summer even if it’s not the best season to do so. As I’ll explain in a moment, vigilant watering is the key.