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Full-Sun Perennials: Types and Where to Buy

May 21, 2024
6 min read

Full-Sun Perennials: Types and Where to Buy

The summer heat is approaching, and while most plants crave sunlight for their growth and survival, too much of a good thing can lead to major issues. Excessive sun exposure can make a once-green, blooming landscape look like a dryland, from dehydration and scorching of leaves to water stress that causes wilting and even plant death.

If you live in the Black Hills and your garden is exposed to at least 6 hours of direct sunlight daily, choosing full-sun perennials helps ensure your plants can bask in the heat and your landscape will thrive all season long. 

In this article, we'll share our top recommendations for full-sun perennials and provide tips on caring for them during the dog days of summer ahead.

Types of Sun Exposure

  1. Full sun means an area receives 6-8 hours of direct sunlight.
  2. Partial sun and partial shade refer to an area that receives around 4 to 6 hours of direct sunlight.
  3. Full-shade areas receive less than 4 hours of direct sunlight and are better suited for shade-loving plants.

Best Perennials for Full Sun

Yellow black eyed susan flower in bloom.

Black-Eyed Susans

Additionally, Black-Eyed Susans are drought-resistant, making them an excellent choice for gardens in sunny and arid regions like The Black Hills.

Outdoor garden of white yarrow flowers.


They’re also incredibly hardy, meaning they thrive in various sun exposures but generally prefer full sun. Like Black-Eyed Susans, they’re also considered drought-tolerant.

Daylily flower in the sun.


These sun-loving perennials can blossom in locations where they receive direct sunlight most of the day. Their resilience and adaptability make them a great choice for gardens and landscapes that experience intense sunlight during the summer months.

Outdoor field of catmint flowers.


Their benefits include being deer-resistant and low maintenance. Did you know Catmint can also deter pests such as aphids and mosquitoes? Due to its compact growth habit and long blooming period, it’s commonly used in herb gardens and as a border plant.

Which Plants Should Avoid Full Sun?

While some perennials love the sun, others prefer filtered sunlight and may struggle if exposed to prolonged periods of intense daylight. Therefore, consider the specific light requirements of your perennials before planning garden beds to ensure their optimal growth and health.

Here are a few to keep out of full sun:

  • Hostas
  • Astilbe
  • Goats beard
  • Lamium
  • Heuchera

How To Care for Full-Sun Perennials

Here are some tips for caring for full-sun perennials: 

You can see if your perennials need water by sticking your finger into the soil near the plants. If the soil feels dry to the touch, it's time to water. Also, look for signs of wilting or drooping leaves, indicating a need for water.

Keep in mind that full-sun perennials may need more frequent watering during hot, dry weather, so it's important to monitor soil moisture regularly.





Quality Soil

These care tips will help your full-sun perennials thrive and beautify your garden throughout the growing season.

Do Full-Sun Perennials Experience Water Stress?

Even the hardiest sun-loving perennials can experience water and heat stress (when plants are exposed to high temperatures that exceed their optimal range for growth) during prolonged exposure to high temperatures and intense sunlight. 

When this happens, try the following techniques:

  • Give the plant a deep, thorough watering to ensure the roots receive adequate moisture. Water slowly so you allow the soil to absorb the water without runoff.
  • Provide temporary shade for the plant during the hottest part of the day to reduce additional water loss.
  • Keep a close eye on the affected plants and continue to water as needed, adjusting the frequency based on the plant's response and the weather conditions.

A Final Thought

Shop Full-Sun Perennials at The Plant Shop

Have questions about plant selection? Our team is always happy to answer them and help you find the plants and supplies you need to create a healthy, vibrant garden.


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