Can You Still Grow Sunflowers In Late Summer?

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Sunflowers Late summer sunflowers growing in Skagit County… Flickr

Can You Still Grow Sunflowers in Late Summer?


Summer is the perfect time to enjoy the vibrant blooms of sunflowers. These beautiful flowers are known for their tall stalks and large, yellow petals that resemble the sun. However, if you missed the opportunity to plant sunflowers earlier in the season, you may be wondering if it’s still possible to grow them in late summer. In this article, we will answer some frequently asked questions about growing sunflowers in late summer.

1. Can Sunflowers Be Planted in Late Summer?

Yes, you can still grow sunflowers in late summer. While it’s ideal to plant them earlier in the season, sunflowers are hardy plants that can be planted up until mid-summer and still produce beautiful blooms.

2. What Varieties of Sunflowers Are Best for Late Summer Planting?

When choosing sunflower varieties for late summer planting, it’s important to select ones that have a shorter growing period. Look for dwarf or semi-dwarf varieties that reach maturity in around 60-70 days. Some excellent choices include ‘Sunspot’, ‘Teddy Bear’, and ‘Fantasia’.

3. How Should I Prepare the Soil for Late Summer Planting?

Before planting sunflowers in late summer, it’s crucial to prepare the soil properly. Start by removing any weeds or debris from the planting area. Loosen the soil using a garden fork or tiller, and incorporate organic matter such as compost or well-rotted manure to improve drainage and fertility.

4. What Is the Best Location for Late Summer Sunflowers?

Sunflowers thrive in full sun, so choose a location that receives at least six hours of direct sunlight per day. Ensure that the area has well-draining soil to prevent waterlogging, as sunflowers don’t tolerate excessive moisture.

5. How Often Should I Water Late Summer Sunflowers?

While sunflowers are relatively drought-tolerant, they still require regular watering, especially during the hot summer months. Water deeply once or twice a week, providing enough moisture to reach the plant’s roots. Avoid overwatering, as this can lead to root rot.

6. Should I Fertilize Late Summer Sunflowers?

Applying a balanced fertilizer, such as a 10-10-10 formula, before planting can provide sunflowers with the nutrients they need to grow and bloom. However, if you have prepared the soil with organic matter, additional fertilization may not be necessary.

7. How Can I Protect Late Summer Sunflowers from Pests and Diseases?

Keep an eye out for common sunflower pests such as aphids, slugs, and caterpillars. You can use organic pest control methods like neem oil or insecticidal soap to deter these pests. To prevent diseases, ensure proper air circulation by spacing the sunflowers adequately and avoid overhead watering.

8. When Can I Expect Late Summer Sunflowers to Bloom?

Late summer-planted sunflowers typically take around 60-70 days to bloom. This means that you can expect to see their vibrant flowers in early fall. Enjoy their beauty and consider harvesting the seeds for a tasty and nutritious snack!

9. Can I Save Seeds from Late Summer Sunflowers?

Absolutely! Sunflowers produce large seed heads filled with edible seeds. Allow the sunflower heads to dry on the stalk, and then harvest the seeds by rubbing them off with your hands. Store the seeds in a cool, dry place for future planting or use them in various culinary creations.

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