10 Heat-Tolerant Annuals for Hanging Baskets: Summer-Proof Beauties

As the temperatures soar and summer thrives, you may find yourself wanting to showcase your green thumb while also keeping your plants alive and healthy.

Hanging baskets are an excellent way to add color and life to your outdoor spaces but finding suitable annuals that can withstand the heat can be a challenge.

Fret not, for we’ve compiled a list of ten heat-tolerant annuals perfect for your hanging baskets.

These vibrant and beautiful plants not only have the tenacity to survive high temperatures but also add a refreshing touch to your patio, deck, or porch. Worried about constant watering?

Many of these annuals have low water requirements, making them perfect for a low-maintenance, heat-loving garden oasis. Keep in mind the essential care tips—ample sunlight, water, and proper soil—for these annuals, and you’ll have thriving, captivating hanging baskets all summer long.

Ready to transform your outdoor space into a verdant paradise? Here are ten heat-tolerant annuals that can make your hanging baskets bloom with pride throughout the hot summer months.

What Are Heat-Tolerant Annuals?

Heat-tolerant annuals are plants that thrive in high temperatures and can withstand the heat of summer without wilting or losing their vibrant colors. They are perfect for adding a pop of color to your garden, especially in hanging baskets.

Heat-tolerant annuals are not only beautiful additions to your outdoor space but also low maintenance, as they require less frequent watering than plants that are more susceptible to heat stress. This can save you time and effort, and makes them a great choice for busy gardeners or those who live in areas prone to drought.

When selecting heat-tolerant annuals for your hanging baskets, consider factors like sunlight exposure, humidity levels, and the aesthetic you want to achieve with your outdoor space. There are many stunning options to choose from, each offering different colors, textures, and shapes to suit your garden’s style.

In addition to being eye-catching and practical, heat-tolerant annuals are also beneficial for pollinators like bees and butterflies. Their bright, fragrant blooms often attract these essential insects, helping maintain the health and biodiversity of your garden and the surrounding area.

10 Popular Heat-Tolerant Annuals


Lantana is a fantastic choice for your hanging baskets due to its heat and drought tolerance. With clusters of small, brightly colored flowers, it will surely brighten up your outdoor space. Lantana thrives in full sun and well-draining soil, making it an easy-to-maintain option.


Also known as Moss Rose, Portulaca is a low-maintenance, succulent-like annual that thrives in hot, sunny conditions. Its vibrant flowers come in shades of yellow, orange, pink, and red, adding a pop of color to your hanging baskets. Portulaca prefers sandy, well-draining soil and requires minimal watering.

Sweet Potato Vine

Sweet Potato Vine is a fast-growing, heat-tolerant plant with heart-shaped leaves that come in shades of green, purple, and bronze. This vine is an excellent choice for adding a burst of foliage to your hanging baskets. Plant it in well-draining soil and provide it with plenty of sun for the best growth.


Geraniums are classic, heat-tolerant flowers that add a touch of elegance to hanging baskets. With their vibrant colors and variety of shapes, they can be a stunning addition to your display. Geraniums grow best in full sun and well-draining soil and require regular watering to thrive.


Begonias are versatile and heat-tolerant flowers that can thrive in both full sun and partial shade. Their large, showy blooms create a stunning focal point in hanging baskets. Begonias prefer well-draining soil, and it’s essential to avoid overwatering to prevent root rot.

Million Bells

Million Bells, or Calibrachoa, resemble small petunias and produce an abundance of bell-shaped flowers throughout the season. These sun-loving, heat-tolerant plants create a lush, cascading effect in hanging baskets. Plant them in well-draining soil and provide regular watering for the best results.

Mexican Heather

Mexican Heather is a heat-tolerant annual with tiny, lavender flowers and glossy green foliage. This plant is perfect for adding texture to your hanging baskets. It thrives in full sun and well-draining soil, and requires occasional watering to keep it looking its best.


Scaevola, or Fan Flower, is a unique, heat-tolerant plant with fan-shaped flowers that come in shades of blue, pink, and white. This trailing plant is an excellent choice for hanging baskets, as it creates a waterfall-like effect. Scaevola prefers well-draining soil and full sun for optimal growth.


Euphorbia, also known as Diamond Frost, is a heat and drought-tolerant plant with a cloud-like appearance. Its delicate, white flowers and airy foliage make it an excellent filler for hanging baskets. Plant Euphorbia in well-draining soil and full sun to part shade for the best results.

Remember to keep an eye on watering requirements, as hanging baskets can dry out quickly in hot weather. Regularly feed your plants with a balanced fertilizer to ensure they remain healthy and vibrant throughout the season.

Hanging Baskets Care Tips


When it comes to watering your heat-tolerant annuals in hanging baskets, make sure to provide them with a consistent and adequate supply of water. Due to their elevated position, hanging baskets often dry out more quickly than ground-level plants. Check your baskets daily and water them when the top inch of the soil feels dry. Water your plants until you see excess water draining out of the bottom of the basket – this ensures proper saturation.


To keep your heat-tolerant annuals growing strong and healthy, regularly provide them with the necessary nutrients. Use a balanced, water-soluble fertilizer approximately once every two weeks. Follow the package instructions for proper dilution rates and application methods. Fertilizing ensures that your plants have the nutrients necessary to keep producing blooms throughout the growing season.


Pruning can help maintain the beautiful shape of your plants and also encourage more blooms. Regularly deadhead spent blooms to encourage new flower growth. You should also trim off any dead or damaged foliage, as well as any branches that become too long or unruly. This way, your plants will focus their energy on producing healthy new growth.


In order to ensure that all sides of your hanging basket receive equal sunlight, rotate your basket on a regular basis. This can be done easily by giving your basket a quarter turn once a week. This practice will help prevent uneven growth and ensure that your plants receive the necessary amount of sunlight to thrive.