The ideal periods to plant Endless Summer Hydrangeas are in the fall or early spring. Prior to the beginning of the blooming season, you should give them time to develop a strong root system.
Pick a protected planting location that, ideally, receives sun in the mornings and shade in the afternoons.
Choose the hue of the Endless Summer Hydrangea blossoms before planting. You can adjust your soil with sulfur to get bluer flowers. Lime can be added if you’re more interested in bright pinks.
Make a hole that is nearly twice as wide as your Endless Summer root ball. Your plant should be just a hair higher than the surrounding soil level.
Start backfilling the hole with dirt. Pour water into the hole until it reaches the top, then stop halfway through. Completely filling in the remaining soil once it has drained away.
Place your Endless Summer hydrangeas eight feet apart from one another if you’re using them as foundation plants. They should be placed four feet apart to form a garden border.
How close together should hydrangeas be planted?
Hydrangeas have huge bloom heads and exude an old-fashioned elegance. How to plant and take care of beautiful floral bushes is explained in our hydrangea growing guide. Additionally, learn the answers to frequently asked questions like “why aren’t my hydrangeas blossoming this year?”
About Hydrangeas
These elegant plants are simple to grow, withstand nearly any sort of soil, and produce an abundance of blossoms that are unmatched in the world of shrubs for their stunning flowers. Clear blue, vivid pink, frosty white, lavender, and rose blossoms sometimes grow on the same plant, enticing us with their colors.
From container gardens to shrub borders to group plantings, hydrangeas are great for a variety of garden locations. Breeders seem to give us more possibilities every year, and gardeners have countless expectations for bloom size and color. Varieties abound. Pay attention to the species listed below to get an idea of how your hydrangea will develop as some require different maintenance. The joys you experience will be enhanced when you know what to expect.
Enjoy this tribute to hydrangea beauty and read our guide below to discover how to grow hydrangeas.
Where to Plant Hydrangeas
- The majority of hydrangeas like fertile, moisture-rich soils that drain well. Compost can help improve bad soil.
- Hydrangeas typically prefer some sun. In an ideal world, they would receive full sun in the morning and then some afternoon shade to avoid the intense midday sun. The Bigleaf Hydrangea (H. macrophylla), with its huge, prone-to-wilting leaves, is a prime example of this. Some kinds can withstand more direct sunlight.
- Depending on the kind, place hydrangeas anywhere between 3 and 10 feet apart. Plants should always be spaced according to their anticipated mature size!
When to Plant Hydrangeas
- The optimum season to plant hydrangeas is in the fall, followed by spring. The cooler shoulder seasons are the ideal times to plant shrubs because they will have plenty of time to build a strong root system before the intense heat of summer or the bitter cold of winter.
- In the early morning or late afternoon, plant the shrubs. The plant is less prone to experience heat stress from direct sunshine because it is typically cooler.
How to Plant Hydrangeas
- Gently remove the hydrangea from its container and examine the root ball. Snip off any rotten or dead sections, and if the plant is very root-bound, pry the roots free.
- Make a hole that is two to three times as big and as deep as the root ball. The top of the planting hole should be level with the base of the plant, which is where the stem joins the earth.
- After placing the plant in the hole, add enough soil to fill it halfway. generously hydrate. Fill the remaining space in the hole with soil once the water has been absorbed.
- once more, thoroughly rinse.
How to Grow Hydrangeas from Cuttings
Cuttings of hydrangeas can be easily grown. They easily take root, and the process is a wonderful teaching tool for propagation. This is how you do it:
Watering
- Make sure hydrangeas get enough water for the first year or two after planting and throughout any droughts.
- Over the course of the growing season, water at a rate of 1 inch per week. Three times a week of heavy watering is preferable to shallow watering. Root growth is promoted by this.
- All varieties of hydrangeas benefit from constant moisture, but bigleaf and smooth hydrangeas need more water.
- If the soil is too dry, the leaves will wilt, and there won’t be enough moisture for the flowers to bloom.
- To water thoroughly while keeping moisture off the flowers and leaves, use a soaker hose.
- The best time to water hydrangeas is in the morning to protect them from disease and get them ready for the heat of the day.
- Under your hydrangeas, spread organic mulch to help keep the soil cool and moist, gradually add nutrients, and enhance soil texture.
Fertilizing
You might not need to fertilize hydrangeas if your soil is rich. When fertilizer is applied in excess, blossoms are sacrificed in favor of green growth. A soil test is the most effective tool for determining your fertility requirements.
Apply fertilizer according to the type of hydrangeas you have. Every variety has varied requirements and will profit from applying fertilizer at various times.
- Several mild fertilizer applications in March, May, and June are beneficial for bigleaf hydrangeas.
- Two applications in April and June work best for oakleaf and panicle hydrangeas.
- The only time smooth hydrangea plants require fertilizing is in the late winter.
Winter Protection
- Cover plants with bark mulch, leaves, pine needles, or straw in the fall, at least 18 inches deep. If at all feasible, create cages out of chicken wire or snow fencing and cover the entire plant, including the tip, with the cages. (Avoid using maple leaves; they have a tendency to mat after becoming wet and may suffocate the plant.)
How to Prune a Hydrangea
Many of the queries from readers concern hydrangea trimming. It makes sense that it’s unclear because it relies on the hydrangea kind. Fortunately, identifying which type you have makes determining the best pruning strategy simple. Discover the fundamentals below, then read more about pruning different varieties of hydrangea here.
Pruning Common Hydrangeas
The Bigleaf cultivar of Hydrangea macrophylla is the most popular garden hydrangea shrub. (For more, see below.)
Hydrangeas with large leaves, such as Bigleaf (H. macrophylla), Oakleaf (H. quercifolia), Mountain (H. serrata), and Climbing (H. anomala subsp. petiolaris), are pruned AFTER the summer blooms have passed. On stems from the previous season, these kinds bloom (“old wood).
- Avoid pruning after August 1 since flower buds actually grow in the late summer and bloom the next season.
- Dead wood should only be removed in the fall or very early spring.
- To stimulate branching and fullness, trim one or two of the oldest stems by cutting them all the way to the ground.
- Pruning the stems all the way to the base is necessary if the plant is old, neglected, or injured. For the following season, you’ll lose the flowers, but you’ll also revive the plant for subsequent ones.
- The huge Mopheads should not be deadheaded (faded flowers removed); instead, you should leave them over the winter and trim them back in the early spring (to the first healthy pair of buds). Deadheading Lacecaps is OK; simply trim down to the second set of leaves below the bloom head.
- Avoid pruning unless it is absolutely required while growing H. macrophylla (and H. serrata) cultivars in Zones 4 and 5, and then only after blooming. If not, merely remove dead stems in the spring.
Pruning Other Hydrangeas
Hydrangeas called Panicle (H. paniculata) and Smooth (H. arborescens) are clipped BEFORE flower buds develop. On stems from the current season, these kinds blossom (“new wood).
- When the plant is dormant in the late winter, prune. The plant will therefore grow new buds in the spring that will result in blossoms even if the winter kills the buds.
- In general, avoid pruning to “shape the bush” and just remove dead branches.
How much time does it take Endless Summer hydrangeas to reach full maturity?
The most crucial naturally existing component for growing plants, after climate, is soil. Your total plant health and flower production will be greatly impacted by how well your soil has been prepared. You must first identify the sort of soil you have. Ask the nursery in your area for a soil test kit. The “Jar Test” is a different at-home test. 4. Dig down and take out 1/4 cup of soil. Put that soil, 2 cups of water, a few drops of dish soap, and a clear plastic bottle in a container. Shake the jar for for a minute, then wait about 24 hours for the contents to settle. Sand is the first layer to separate, followed by silt and clay at the top, which may appear as yellow-brown, red, or tan water.
- Sand: If your jar contains more than half sand, you have sandy soil.
- Silt: If your soil contains more than half silt and very little clay, you have heavy silt.
- Clay: Clay soil is defined as having 1/4 clay and a significant proportion of silt.
- Loam: Loam soil will consist primarily of sand, silt, and a thin coating of clay.
You can better prepare the soil for your hydrangea macrophylla once you know what kind of soil you have. Loam is the best kind of soil for these plants. Gypsum can be added to thick clay soil to help break up the clay and promote drainage. Apply 515 pounds of gypsum per 100 square feet as a general guideline. Peat moss can assist in absorbing rainwater in sandy soil. A good soil should also contain at least 5% organic matter, often known as humus or compost. This needs to cover the entire bed in a layer 26 inches thick. Typically, hydrangeas thrive on soil that has more organic matter. Organic matter, especially in clay soil, provides air pockets that significantly aid in water drainage.
After preparing the soil, arrange the plants according to your chosen design. Make sure to consider the plants’ full mature size to ensure that, when they reach maturity, they will hardly touch. This will give your landscape a full appearance while still allowing for airflow Before planting your hydrangea macrophylla, prepare the planting hole by digging it slightly larger than the pot size and filling it with any fertilizer (see below), organic matter, or nutrients required to enrich the soil mix. Before planting the hydrangea macrophylla, gently remove any tightly packed roots with your fingers to promote root development and spread once the plant is in the ground. Make sure the plant’s crown—where the soil meets the base of the stems—is level with the surrounding terrain. The hydrangea can quickly dry out if it is positioned too high. When hydrangeas are planted, if the crown is set too low, it may prevent them from blooming and even cause them to rot. Fill the hole back up with earth and pack it tightly around the crown of the newly planted hydrangea to form a water dam. Water should be added to the dam, let it drain, and then be refilled.
When fertilizers are utilized successfully in the spring or early summer, hydrangeas perform very well. We advise utilizing a slow-release, granular fertilizer with a high phosphorus content (the middle number in the NPK ratio). The element that promotes the formation of blooms is phosphorus. When applying fertilizer, be sure to follow the directions on the container and avoid using too much. Hydrangeas can develop large, lush green leaves from over fertilization, but their ability to blossom is hampered.
Hydrangeas prefer moist, well-drained soil that is not damp since over watering can reduce blossom production in hydrangea macrophylla. You will need to modify how much and how frequently you water based on the type of soil you have. Because it doesn’t allow as much water to sink in as a sandy soil that is looser, clay soil holds more water than sandy or loam soil types and produces more runoff. When the earth is particularly dry, we advise hand watering the bushes, utilizing a drip irrigation system, or using a soaker hose. If your hydrangeas are located in a hot climate, they could show signs of wilting in the afternoon, but they will recover as the temperature drops. By watering in the morning or evening when the wind is calmer and the sun is less intense, you can help with this. Another excellent method for preserving water and keeping the ground cool is to use mulch. Plants with mulch often need less watering more frequently than plants without mulch.
To ensure stunning blossoms from both old and young wood in the spring, do not remove the mulch too soon; rather, wait until all threat of frost has passed before uncovering. Early-season color will be provided by “old wood buds, while flowers that form on growth from the current season will normally appear around six weeks later and last through the end of the season. Follow the same procedures as if your hydrangeas were planted in the ground, but instead bring the entire pot inside your garage or a cool basement for the winter. Even though they won’t need as much mulch because they won’t be getting moisture from snow and rain, container plants should still be lightly watered all winter long.