Heat Tolerant Flowers

17 Heat Tolerant Flowers that Thrive in Full Sun

Before hitting your favorite store and transforming your garden into a little paradise, it’s important to brace yourself with knowledge on the flowers you want to invest in.

Online stores are filled with millions of beautiful flowers that might leave you confused and spoilt for choices and end up with the wrong decisions.

To avoid all these, you need to equip yourself with the right information on what flowers are best for your garden.

Remember, flowers behave differently depending on the season, sun exposure, and type of soil. We have flowers that thrive well in full sun, while others will only work well in shades or just light. Others will do well in winter than they will in summer.

Additionally, it’s important to note that some flowers have a longer lifespan than others. For instance, perennial flowers can stay up to two years with lesser costs. These types of flowers will not only help you save cost but also attract butterflies, bees, and hummingbirds with their stunning blooms.

Consequently, I have come up with a detailed list of heat-tolerant flowers that thrive in full sun for our focus. This implies that these flowers will need about 6-8 hours of direct sun to thrive. They will bloom and give life to your garden so long as the sun is shining. So let’s go!

1. Beardtongue Flower (Penstemon)

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Penstemon is a perennial plant with lance-shaped foliage and tubular flowers arranged on long stalks.

These flowers bloom in different colors of pink, red, purple, white, and yellow. It can grow up to 6ft tall and will thrive perfectly in early summer.

This herbaceous plant is short-lived and grows right from seed. But these seeds undergo a period of dormancy in which it adapts the ecological condition and natural habitat of the plant.

Therefore, for better results, you need to sow these seeds during autumn to allow all these transformations to take place.

Additionally, make sure your soil is well-drained and has some little compost for better flourishing.

2. Wax Begonia

Wax Begonia

This flower can be grown from either the plant cutting or from seeding. The seed is tiny, so be sure to give it enough lighting for proper germination.

If you decide to use the cuttings, then cut about 3-4 inches of a mature plant and struck 2 inches deep in the soil.

Wax begonia can grow 6-8 inches depending on the species. Ensure the plant is in a well-drained soil prepared with enough organics or compost.

The varietal blooms of red, white, pink, and yellow will warm your heart with its beauty.

3. Lantana


If you are looking for a colorful garden through summer that will attract butterflies and hummingbirds, then lantana will be a great choice for you.

These flowers bloom in colors of purple, orange, red, white, and yellow. Often a single flower can be mixed with either of these colors, creating a double color effect.

The shrubs of lantana can grow up to 6-8 feet tall. It is drought tolerant, and a parent plant can be grown from a cutting.


4. Pentas

Pentas Live Plant

Pentas can be started from a softwood cutting or grown from seed. The cutting ends can be dipped in rooting hormone during spring and then plunged into well moist soil.

Growing it from seeds is another way of getting little plants, but this method might take a longer time to bloom.

The flowers bloom in colors of pink, red, or white. If you love hummingbirds and butterflies, then you got a great catch with pentas.

5. Plumbago (Sky Flower)

Plumbago Flower

Plumbago flower is classified as a shrub and can grow up to 6-10 feet in its natural habitat. Apart from being drought resistant, the plant will grow as evergreen given enough space for foundation.

It requires a minimal amount of care, yet its sky blue flowers can bloom throughout the year..

6. Zahara Zinnia

Zahara Zinnia

Zinnia flowers are very easy to grow and can bring beautiful life to your garden with their massive bloom.

These plants are planted directed to the garden as they cannot thrive if transplanted. The flowers bloom in yellow, pink, white, or red.

Categorically there are three types of zinnia flowers. The single-flowered, double and semi doubled zinnia flowers. The division solely depends on the number of rows of petals and the visibility of its center..

7. Lisianthus


Lisianthus can be grown from seeds but take a long time to mature; therefore, the best option will be to take seedlings or plants with buds and plants.

The stem can bloom several flowers in colors of pink and purple, although it may appear in other cool tones..

8. Summer Snapdragon

Summer Snapdragon

The plant can thrive easily if grown from seed or cuttings. The blooming colors of pink, blue, purple, red, and white can be a great catch for the butterflies, adding more life and beauty to your garden..

8. Violas

Viola Flowers

Violas will thrive and flourish well if grown from seed. Mature seeds may also splash your garden with numerous plants of violas and color your view with blooms of white, yellow, pink, red, orange, and black...

.9. Moonflower


Moonflowers are known for their beautiful fragrance and can be ideal if planted near your bedroom or living area. The trumpet-shaped flower resembles the morning glory and can grow up to 3-6 inches wide.

As morning glory unfurls in the morning, moonflower gets its excitement in the evening, opening to a beautiful cone shape as it sweetens the air with its fragrance. This spectacular plant can bloom all year round..

10. Hibiscus


Hibiscus flowers are also trumpet-shaped with large, showy flowers. The plant can grow up to 6 inches wide and blooms in myriads of colors like white, yellow, red, or peach.

The flowers last for a few days, but luckily the plant quickly replaces them with new blooms...

11. Dahlia


Dahlia flowers can be a gorgeous addition to your garden with their beautiful rainbow of colors. Coming from the species as zinnia, dahlias can grow to about 4-5 feet tall.

You need to plant tubers of mature dahlia in your garden during spring to get a whole new youthful plant in the later seasons. These flowers will bloom from mid-summer through autumn, outshining the rest.

12. Salvia

Salvia Flowers

Some people refer to it as sage because they are closely related. The plant can be planted from seeds or cuttings, but one thing is for sure, they got dense foliage and grow big. For this reason, you need to give the plant enough space for broadening.

The flowers bloom in a variety of colors, including; purple, red, pink, blue, yellow, and white. This range of colors and the fragrance that sometimes comes with it will mostly attract hummingbirds, butterflies, and other pollinators..


13. Peonies.

Peonies Flowers

Peonies flowers are big, fluffy with fragrance. This fragrance may differ depending on the cultivar.

The flower blooms in late spring with a range of colors including white, pink, maroon, yellow, and red.

The plant is popular for its outstanding beauty and fragrance.


14. Marigold

Marigold Flower for the Sun

Marigold plant will cheer you through summer with its beautiful blooms. The seed can be sowed during spring when the ground is a bit warmer.

The seeds take a shorter time to germinate, while blooming will take about 8weeks. But you can be sure to enjoy the golden sunshine of these flowers by the end of spring through summer.

The available shades include yellow and orange with highlights of gold, copper, red, and brass.

..15. Petunia

Petunia Flower for the Sun

This flower can be grown from seed or directly transplanted to the garden, most preferably during spring when the soil is warm. They grow between 6-24 inches with a spread of 3 feet.

The flowers will bloom from late spring through summer to fall. The blooms come in different colors of pink, purple, red, white, and yellow.


16. Moss Rose

Moss Rose

You can start moss rose from planting a seed. The seeds are tiny and take about two weeks to mature if given enough light. The plant can grow up to 3-8 inches tall with a spread of 12-24 inches wide.

The flowers are either semi doubled or fully doubled, which resemble the miniature roses. They bloom in summer in a variety of colors, which include; orange, red, yellow, cream, bright pink, white, among others..


17. Floss Flower

Floss Flower

This whimsy pompom-shaped flower will attract butterflies, hummingbirds, and insects to your beautiful garden. It comes mostly in the shade of blue but has other variegated colors, including white, pink, lavender, and red.

The plant can grow to about 4-36 inches tall with a wide spread of 6-18 inches.

In Conclusion

There are numerous types of flowers that can be grown and thrive in full sun. By now, you must be well informed, and all braced for shopping in your favorite store.

If you have any questions, feel free to ask me in the comment section below.