Hydrangeas are popular flowering shrubs that are widely grown in America for their beautiful blooms and ornamental value. They belong to the Hydrangeaceae family and are native to Asia and the Americas. Here’s some information about hydrangea growing in America:
- Climate and Hardiness: Hydrangeas can be grown in various regions across the United States, but their specific requirements may vary depending on the species and cultivar. Most hydrangeas prefer temperate climates with mild winters and moderate summers. They thrive in USDA hardiness zones 3 to 9, although certain varieties are more suited to specific zones.
- Soil Requirements: Hydrangeas prefer well-draining, fertile soil that is rich in organic matter. The soil pH also plays a crucial role in determining flower color. Acidic soils (pH below 7) produce blue flowers, while alkaline soils (pH above 7) yield pink flowers. Soil pH can be adjusted using amendments such as aluminum sulfate for blue flowers or lime for pink flowers.
- Sunlight: Hydrangeas generally prefer partial shade or filtered sunlight, especially in hotter regions. Morning sun and afternoon shade are ideal for most varieties. However, some hydrangeas can tolerate more sun, while others thrive in shadier conditions. It’s essential to select the right variety based on the available sunlight in your garden.
- Watering: Hydrangeas require regular watering, especially during the summer months, to maintain adequate soil moisture. They prefer evenly moist but not waterlogged soil. Mulching around the base of the plants helps retain moisture and suppress weed growth. Avoid overhead watering as it can lead to leaf diseases; instead, water the base of the plant.
- Pruning: Pruning hydrangeas is essential to maintain their shape, promote healthy growth, and control their size. The timing and method of pruning depend on the type of hydrangea. Some hydrangeas bloom on old wood (last year’s growth), while others bloom on new wood (current season’s growth). It’s crucial to know the specific pruning requirements for your hydrangea variety to avoid inadvertently removing flower buds.
- Common Hydrangea Varieties: Several hydrangea species and cultivars are popular in American gardens. Some common varieties include:
- Hydrangea macrophylla (Bigleaf Hydrangea): Known for its large, rounded flower clusters and the ability to change color based on soil pH.
- Hydrangea arborescens (Smooth Hydrangea): Includes the popular ‘Annabelle’ cultivar with large white flower heads.
- Hydrangea paniculata (Panicled Hydrangea): Features cone-shaped flower clusters that often start white and age to pink or bronze.
- Hydrangea quercifolia (Oakleaf Hydrangea): Known for its distinctive oak-shaped leaves and cone-shaped flower clusters.
- Hydrangea serrata (Mountain Hydrangea): Similar to H. macrophylla but generally more cold-hardy.
Remember, specific care requirements may vary depending on the variety and local climate. It’s always a good idea to consult local gardening resources, nurseries, or cooperative extension services for more precise information tailored to your region.
Hydrangea flower in America Hydrángea is a shrub belonging to the flowering plant genus of the Hydrangea family. There are about 80 species, most commonly found in the southern and eastern regions of Asia and America. In the natural environment it can grow up to 3 m tall. Hydrangea has large, oval leaves with a sharp point on the top and serrated edges. It blooms in large inflorescences, the colour of the flowers depending on the pH of the soil: pink and mauve for alkaline soils, blue for acidic soils, white and cream for neutral soils. The flowering period lasts from spring until frost. Flowering lasts from spring to early frosts. The fruit is usually 2-5 chambered capsule with small seeds inside. Hydrangea flowers grow naturally in America. It grows naturally especially in the Appalachian Mountains of the USA. Hydrangeas It also grows naturally in Asia, North America and South America.
What kind of plant are hydrangea flowers? Hydrangea flower characteristics
Hydrangea flowers in natural conditions can be shrubs up to 3 m tall, small trees and vines that can reach heights up to 30 m up through tree trunks. Depending on the species, they can also be either evergreen or deciduous, and in our climate, florists prefer the deciduous ones. Hydrangea leaves are usually large, opposite, oval with a sharp apex, often with serrated edges and prominent veining. Hydrangea blooms from spring to the winter with large, spherical, corymbose or paniculate flowers, which are divided into two types: small, fertile (fruiting) flowers, usually found in the centre of the inflorescence, and large sterile (sterile) flowers, usually blooming at the edges. Hydrangea Flowers of America >> There is nothing complicated about growing hydrangeas; they are unpretentious and adapt quickly to the environment. There are, however, some details that need to be taken into account. The most important rule is to ensure sufficient watering, as it is a very water-loving plant. The next most important thing is timely pruning.
How to care for hydrangea flowers?
To regulate the number and size of inflorescences, the mature plant requires annual pruning. With tree hydrangeas, cut off ¾ of the shoot height in spring, leaving two pairs of buds. This encourages the development for larger, more vivid blossoms. Also remove any weak, frosty branches. In the autumn, cut off all of the inflorescences to protect the shrub from injury in winter, when the branches break under the weight of the snow.
To form a neat tree, leave one main shoot on a two-year-old plant, remove the rest. Prune before the start of the growing season, in spring. Every year, the crown is cleaned of weak shoots, leaving 4-5 of the strongest to branch out. All types of hydrangea respond well to pruning, but be careful with the garden hydrangea, it is sufficient to prune the damaged branches, if they are cut out completely, you will get a lush green bush, but no flowering.
How to water hydrangea in America?
It is preferable to use rainwater. If you water with tap water, use only filtered or distilled water. Pour 2-3 buckets of water under each bush each week. Water in the early morning or evening when the sun’s activity is reduced.
Does the hydrangea in America like the light?
All hydrangeas like plenty of natural light, but the panicle hydrangea is the most light-loving – it prefers bright sunlight, but with sufficient humidity. If the air is dry, however, it is better to allow at least some sunlight to disperse, otherwise the foliage loses some of its ornamental qualities.
How to prepare hydrangea soil?
The soil for planting hydrangeas should be fertile. Poor, sandy soils are not suitable; fertile, friable loam with a mixture of leafy soil, sod and peat is ideal.
Should hydrangea soil be moist?
Hydrangeas prefer an average humidity of around 50-60%. In winter, it is quite dry at home, so when the heating season begins, pots of hydrangeas should be placed on a wide tray with water or moist expanded clay material. Outside the heating season, they do not need to be sprayed.
Does the hydrangea flower like the heat?
Hydrangeas like a cool and humid environment with relatively small seasonal and diurnal temperature variations. The optimum temperature for growing the plant is 18 – 29 ℃ and it should be at least -1 ℃ in winter.
How to reproduce hydrangea flower?
It can be propagated by seeds, cuttings and division. The most convenient method is cuttings. To do this, the cuttings are cut in the first half of the season and planted in a container. The submergence into the ground should be about 3 cm, the soil is suitable peat- sand. The soil should be kept moist. After successful rooting, the plants can be planted in a permanent location. Are there hydrangea flowers in America?
What are hydrangea flower pests?
Hydrangeas can develop chlorosis from a high lime content in the soil and the first sign will be a lightening of the leaves. The plant should be given iron supplements, watered only with rainwater and sprayed with Agricole or Antichlorosis.
Spider mite causes leaves to shrivel and fall off. To help Hydrangeas, clean the leaves with mineral oil or soap. The fungal disease powdery mildew is caused by overwatering in the soil. The leaves turn brown and fall off and the young shoots become deformed, weak and do not survive the winter.