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Tips for Growing Summer Flowers

Bright, cheerful summer flowers can bring life and color to your garden during the warmest months of the year.  With the perfect summer flower gardening plan and effort, you can create an overflowing bounty of beautiful blooms that will light up your outdoor space from June through September. This blog post provides some helpful flower garden tips, from choosing the right flowers to plant to caring for them throughout the season. 

Plan According to Summer Flower Needs

Summer Flower

Different types of flowers have different requirements for thriving in the heat of summer. Consider the following:


These have a shorter lifespan and flower throughout the summer. Good options include cosmos, marigolds, zinnias, and petunias.


These return year after year and often bloom in late spring through summer. Choose from lilies, daisies, asters, and Phlox.


Plant summer flower bulbs like cannas, gladiolas, dahlias, and calla lilies in spring for summer flowers.


Make sure your summer flower choices will do well in your garden’s amount of sunlight, soil type, and exposure.

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Pick the Right Summer Flower Varieties

There are many varieties of summer flowers for your garden, depending on your climate, garden size, and desired colors. Some of the best options include:


With its tall stems and daisy-like flowers in colors from white to pink to red, cosmos are a classic summer favorite.


These cheerful and the best flowers for summer come in yellow, orange, and bicolored varieties. They have a long blooming period and are very heat and drought-tolerant.

Marigold Flower Delivery


Available in many colors including orange, pink, red, and purple, zinnias grow quickly and reseed themselves.


Fast-growing and easy to care for, sunflowers make quite a statement in the garden. Choose dwarf varieties for smaller spaces. They can also make great summer flower bouquets.

Sunflower Delivery


These heat-loving perennials feature clusters of small flowers in almost any color. They attract butterflies and hummingbirds.

Get The Soil Ready

  • Before planting your summer flowers, add compost or organic matter to the soil. This will improve drainage, aeration, and nutrient levels. Consider using raised beds if your soil quality is poor.
  • Amend the soil with either bagged compost or organic matter like well-rotted manure. Mix around 4 inches of compost into the top 6 to 8 inches of soil.
  • Add fertilizer specifically for flowers and water it into the soil before planting. Use a slow-release fertilizer that will provide nutrients throughout the growing season.
  • Loosen the soil to a depth of 8 to 12 inches. This allows good root penetration and aeration. Rake the soil smooth and level before planting.

Planting and Care Tips

Follow these basics to help your summer flowers thrive once they’re in the ground:

Summer Flowers

Plant at the Right Time

In most areas, mid to late spring allows flowers enough time to establish before the hot weather.

Water Deeply and Infrequently

Most summer flowers prefer to dry out slightly between waterings to encourage deep root growth. Monitor soil moisture closely.

Mulch the Plants Thickly

Mulch helps conserve moisture, suppress weeds, and keep the soil temperature even. Organic mulches like shredded bark or leaves work best.

Summer Flower Plants

Provide Support

Tall flowers like cosmos, larkspur, and sunflowers need sturdy stakes as they grow. Place stakes as you plant and tie your summer flower plants to stakes as they grow.

Also Read: How To Care For Indoor Plants?

Pinch Back on Annuals Occasionally

Pinching off the tender shoot tips of plants like marigolds and zinnias encourages bushier growth and more blooms.

Pick up Dead Flowers

This triggers many flowering plants to produce more blooms throughout summer.

Watch Out for Pests

Summer is a peak time for insect and disease issues. Check plants regularly and address problems promptly.

With these basic practices and flower gardening tips, you’re sure to have an abundance of colorful flowers all summer long. The most important thing is simply getting started – experiment, have fun and see what works best for your space!

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