Welcome to our monthly plant spotlight series, where we highlight a different plant each month and provide you with all the information you need to successfully care for it. In this edition, we’ll go over growing Hydrangeas, a beautiful and versatile plant that thrives in Middle Tennessee gardens. Known for its stunning clusters of flowers and vibrant foliage, Hydrangea is a favorite around Nashville for residential and commercial accounts. Let’s dive in and learn more about how to grow and maintain this charming plant!
Plant Overview
Common Names: Hydrangea
Native to Middle Tennessee: No
Perennial in Middle TN
Deer Tolerant: No
Drought Tolerant: Somewhat
Moderate Maintenance
Plant Care
Hydrangea is a deciduous shrub known for its large, showy flower heads that come in various colors, including blue, pink, white, and purple. These plants are perfect for adding a splash of color to your garden, especially in shady spots. Growing hydrangeas won’t be overwhelming when you follow these care tips.
Light Requirements
Hydrangeas prefer partial shade, particularly in the afternoon when the sun is strongest. However, some varieties, like the Panicle Hydrangea, can tolerate more sun if kept well-watered.
Watering
Hydrangeas require regular watering, especially during dry periods. The soil should be kept consistently moist but not waterlogged. This plant is not drought resistant and will wilt quickly if not adequately watered.
Soil type
Hydrangeas thrive in well-drained, loamy soil rich in organic matter. Incorporate compost or leaf mold into the soil to improve its fertility and moisture retention.
Fertilization
Apply a balanced, slow-release fertilizer during the spring and again in early summer. Be cautious not to over-fertilize, as this can lead to excessive leaf growth at the expense of flowers.
Pruning
Pruning depends on the type of Hydrangea. For example, Mophead and Lacecap Hydrangeas should be pruned immediately after flowering, while Panicle and Smooth Hydrangeas can be pruned in late winter or early spring before new growth begins. Regular pruning helps maintain shape, promotes bushier growth, and removes dead or damaged part
Common Problems
Pests
Hydrangeas may be prone to pests such as aphids, spider mites, and scale insects. Monitor the plant regularly and take appropriate measures, such as using organic insecticidal soap or introducing beneficial insects like ladybugs to control pest populations.
Disease
Common diseases that affect Hydrangeas include powdery mildew, leaf spot, and root rot. Ensure proper air circulation around the plant by implementing proper pruning techniques, avoid overhead watering, and practice good garden hygiene to prevent disease occurrence.
Environmental Stress
Hydrangeas may suffer from heat stress and drought, particularly during the hot Tennessee summers. Mulching around the base of the plant can help retain soil moisture and regulate soil temperature. In extreme conditions, consider providing shade or watering more frequently.
Project Spotlight: Using Hydrangea on a Trellis for a Garden Entry
If you’re looking to make a stunning first impression in your garden, consider using Hydrangeas on a trellis to create a welcoming entryway. This project not only adds vertical interest but also makes your garden feel like a lush, enchanted space. You can check out our gardening page for other interesting features or build this one yourself:
Choosing the Right Hydrangea Variety: For a trellis, opt for a Climbing Hydrangea (Hydrangea anomala subsp. petiolaris). This variety is perfect for vertical spaces as it naturally climbs and clings to structures like trellises, walls, or arbors. It produces beautiful, fragrant white flowers in late spring to early summer and has lush, green foliage that turns a golden yellow in fall.
Selecting the Trellis: Choose a sturdy trellis that can support the weight of a mature climbing Hydrangea. Wood or metal trellises work well and should be securely anchored in the ground or attached to a wall.
Planting: Plant the Hydrangea at the base of the trellis, ensuring it’s placed in well-drained, loamy soil with good organic content. Space the plants about 3 to 5 feet apart if using multiple plants for a broader entryway. Ensure the site gets partial to full shade for optimal growth.
Training the Hydrangea: As the Hydrangea grows, gently guide the shoots onto the trellis, securing them with garden ties if needed. Over time, the plant will naturally begin to cling to the structure. Regularly prune and train the shoots to cover the trellis evenly and maintain the desired shape.
Maintenance: Water regularly to keep the soil moist, especially during dry periods. Fertilize in spring and early summer to promote healthy growth and abundant blooms. Prune after flowering to remove spent blooms and shape the plant as needed.
Creating a Garden Entry: Once established, your Hydrangea-covered trellis will create a breathtaking entryway into your garden. The lush greenery and cascading blooms will frame your garden space, offering a warm and inviting entrance that’s sure to impress visitors.
Why We Love it
Versatile Bloom Colors: One of the most captivating features of Hydrangeas is their ability to change bloom color based on soil pH. Acidic soils produce blue flowers, while alkaline soils produce pink blooms. This unique trait allows gardeners to experiment with different colors in their landscapes.
Seasonal Interest: Hydrangeas offer year-round appeal. In spring and summer, their vibrant flowers are a focal point in the garden. In fall, the leaves turn beautiful shades of red and orange. Even in winter, the dried flower heads provide visual interest.
Wildlife Attraction: Hydrangeas attract a variety of pollinators, including bees and butterflies, making them an excellent choice for supporting local wildlife in your garden.
Conclusion
Now that you have all the information needed for growing Hydrangeas plus a creative project to enhance your garden, it’s time to bring this stunning plant into your outdoor space. Whether you’re a seasoned gardener or just starting out, Hydrangeas will add beauty and interest to your landscape. Stay tuned for our next monthly plant spotlight and happy gardening!
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