Many gardeners assume that once July arrives, the best planting opportunities are behind them.
In reality, July can be an excellent time to add long-lasting perennials to your landscape.
Warm soil temperatures encourage rapid root growth, allowing many perennials to establish surprisingly well before cooler weather arrives. While they may not reach their full potential immediately, the plants you put in the ground now can reward you with years of flowers, foliage, pollinator activity, and low-maintenance beauty.
If you're looking to fill empty spaces, refresh tired beds, or plan ahead for next year's garden, these perennials are worth planting in July.
Why July Is a Great Time to Plant Perennials
Many gardeners focus exclusively on spring planting, but midsummer offers several advantages.
Warm Soil Encourages Root Growth
Roots often develop faster in warm soil than in cool spring conditions.
Garden Gaps Become Obvious
By July, it's easy to identify areas that need more color, texture, or structure.
Fall Establishment Gives Plants a Head Start
Perennials planted in July can spend the rest of the season developing strong root systems before winter arrives.
Better Selection at Garden Centers
Many nurseries discount perennials during summer, making it a great time to find bargains.
1. Coneflower (Echinacea)
Coneflowers are among the most dependable perennials you can grow.
Their daisy-like flowers attract butterflies, bees, and birds while providing months of color.
Why You'll Love It
- Drought tolerant
- Long blooming
- Pollinator magnet
- Excellent cut flower
Once established, coneflowers require very little maintenance.
2. Black-Eyed Susan
Few perennials brighten a garden like Black-Eyed Susans.
Their cheerful yellow blooms can light up borders from midsummer through fall.
Best Features
- Easy to grow
- Heat tolerant
- Long flowering period
- Great for pollinators
They pair beautifully with ornamental grasses and native plants.
3. Salvia
Salvia combines colorful flower spikes with exceptional durability.
Many varieties bloom repeatedly throughout the growing season.
Garden Benefits
- Attracts hummingbirds
- Deer resistant
- Heat tolerant
- Easy maintenance
A quick trim often encourages additional blooms.
4. Daylily
Daylilies have earned their reputation as one of the toughest perennials available.
Modern varieties offer a wide range of colors and bloom times.
Why They're Popular
- Adaptable
- Long-lived
- Drought tolerant
- Easy to divide
Many gardeners consider them nearly foolproof.
5. Coreopsis
Coreopsis provides bright, cheerful flowers over a remarkably long season.
Its compact growth habit works well in borders and pollinator gardens.
Advantages
- Extended bloom period
- Low maintenance
- Excellent pollinator plant
- Drought tolerant
Deadheading helps prolong flowering.
6. Russian Sage
Russian Sage delivers clouds of lavender-blue flowers and silvery foliage.
It thrives in hot, sunny conditions where many other plants struggle.
Why Plant It
- Heat resistant
- Drought tolerant
- Long blooming
- Deer resistant
Its airy appearance adds movement and texture to landscapes.
7. Sedum (Stonecrop)
Sedums are ideal for gardeners seeking beauty with minimal effort.
Their succulent foliage remains attractive throughout the season.
Standout Qualities
- Drought resistant
- Pollinator friendly
- Four-season interest
- Low maintenance
Late-season flowers attract butterflies and bees.
8. Bee Balm
Bee Balm brings vibrant color and pollinator activity to the garden.
Its unique flowers are irresistible to hummingbirds.
Why It's Worth Planting
- Supports pollinators
- Bold summer color
- Native plant appeal
- Easy to grow
Choose mildew-resistant varieties for best results.
9. Yarrow
Yarrow combines delicate-looking flowers with exceptional toughness.
It thrives in poor soils and hot conditions.
Benefits
- Drought tolerant
- Long flowering
- Pollinator favorite
- Excellent cut flower
Its flat flower clusters add architectural interest.
10. Hardy Geranium
Hardy geraniums are among the most versatile perennials available.
They produce attractive flowers while helping suppress weeds.
Reasons Gardeners Love Them
- Long bloom period
- Attractive foliage
- Easy care
- Ground-cover qualities
Many varieties bloom for months.
11. Astilbe
For partial shade, astilbe is hard to beat.
Its feathery flower plumes create elegant displays throughout summer.
Best Features
- Shade tolerant
- Attractive foliage
- Pollinator friendly
- Woodland garden favorite
Astilbe thrives in consistently moist soil.
How to Successfully Plant Perennials in July
Summer planting requires a little extra attention.
Water Deeply
New perennials need consistent moisture while establishing roots.
Mulch Generously
Mulch helps retain moisture and regulate soil temperatures.
Plant During Cooler Hours
Early morning or evening planting reduces transplant shock.
Monitor During Heat Waves
Provide supplemental water during extended periods of hot weather.
Best Perennials for Pollinators
If your goal is attracting beneficial insects and wildlife, prioritize:
- Coneflower
- Bee Balm
- Salvia
- Yarrow
- Coreopsis
- Black-Eyed Susan
These plants provide valuable nectar throughout the season.
Common July Planting Mistakes
Underwatering
Summer heat can stress newly planted perennials.
Planting in Extreme Heat
Avoid planting during the hottest part of the day.
Skipping Mulch
Mulch significantly improves establishment success.
Ignoring Mature Size
Give plants enough space to grow into their mature form.
Frequently Asked Questions
Is July too late to plant perennials?
No. Many perennials establish well when planted in July, especially with proper watering.
Will July-planted perennials survive winter?
Most will, provided they have enough time to establish roots before freezing weather arrives.
Which perennial grows fastest after planting?
Coneflowers, Black-Eyed Susans, and Coreopsis often establish quickly.
Should I fertilize newly planted perennials?
A light application of compost is usually sufficient. Avoid excessive fertilization.
How often should I water newly planted perennials?
Water deeply several times per week until plants become established.
Are perennials planted in July likely to bloom next year?
Yes. Many will provide impressive displays once fully established.
Final Thoughts
July may seem late in the gardening season, but it's actually an excellent opportunity to invest in your landscape's future.
The perennials you plant now can establish strong roots, survive winter more successfully, and return next season larger, healthier, and more beautiful than ever. Whether you choose pollinator favorites like coneflowers and bee balm or dependable performers like daylilies and sedums, these plants will reward your effort for years to come.
