A hydrangea’s roots can be burned if too much fertilizer is used, which will likely result in the plant dying, turning brown, and drooping.
As such, hydrangeas are not heavy feeders and do not require annual feeding in the same manner as roses do, and doing so can actually be detrimental.
Hydrangeas frequently develop and flower to their full potential if they are planted in healthy soil or the soil has been modified with compost prior to planting.
The hydrangea should flourish if a 1-inch-thick layer of mulch is applied around it to assist retain moisture and supply nutrients to the soil (compost and leaf mould are ideal options).
Only in the following circumstances should fertilizer be used:
- Planting the hydrangea in sandy soil (which is nutrient poor).
- The hydrangea is in a pot or other container where the roots have used up all the nutrients in the soil.
In these two situations, it is recommended to use an all-purpose fertilizer with equal parts nitrogen, phosphorus, and potassium (NPK) that is applied once in the spring and is generally well-balanced.
The roots of your hydrangea can be burned by well-rotted manure, especially if it is added to the soil after planting. However, if the manure is made from poultry manure, it may contain a lot of nitrogen.
To prevent issues, I advise putting compost to the soil as a soil amendment (fresh manure is particularly harmful, always allow it to rot for a year or so before using manure on your garden).
If your hydrangea is exhibiting indications of stress as a result of being recently planted in soil that has been altered with manure, move it to a location with soil and compost, and it should recover.
Reduce the amount of fertilizer used and remove any discolored leaves or blossoms. To assist the hydrangea recover, thoroughly water it in an effort to dilute the soil’s water-soluble nitrogen.
Key Takeaways:
- Most frequently, hydrangea deaths are caused by the soil’s lack of moisture. Because they need their soil to be continually moist, hydrangeas will droop or even die in a dry environment.
- Drought, transplant shock, frost damage, and too much sun can all cause hydrangeas to perish.
- If the pot base doesn’t have drainage holes, potted hydrangeas may succumb to root rot. Small containers may dry out too rapidly and limit root expansion.
- Water hydrangeas liberally, cover them with compost mulch, and keep them out of the sun and wind to help them recover. To encourage healthy growth, remove any growth that has been sunburned or damaged by frost.
Why are my hydrangeas that I just planted dying?
Hydrangeas wilt and die when there is insufficient moisture around the roots owing to lack of watering or rainfall, rapid soil drainage, excessive sun exposure, or strong winds that dry out the leaves. Inadequate fertilizer can cause hydrangea flowers to droop.
The hydrangea’s leaves may also begin to curl and turn brown if they are extremely drought-stressed.
The native habitat of hydrangeas is woodlands, where they thrive in rich, moisture-retentive soils made of leaf mold, where they are shielded from direct sunlight and strong winds and receive regular rainfall.
Because of their shallow, fibrous roots and sensitivity to drought, hydrangeas need a steady supply of moisture at the roots to keep their leaves from looking wilted.
When it’s hot outside and there isn’t much rain, hydrangeas can wilt. They can also wilt after being planted because it takes time for the roots to become established enough to be able to absorb moisture.
The following are the primary environmental factors that cause hydrangeas to wilt and die:
- If hydrangeas are planted in sandy or stony soil that dries out too rapidly, plants will wilt. Soil that has been amended with organic matter is necessary for hydrangeas because it helps the roots retain moisture.
- inadequate rainfall or underwatering. If they are in the correct soil and out of the sun, established, mature hydrangeas frequently do not require watering, but smaller hydrangeas or transplanted hydrangeas should be thoroughly watered as often as necessary to maintain the soil’s moisture.
- Always water with a good soak to assist the roots to grow to a greater depth into the soil to find moisture as they establish. Watering too lightly causes the roots to grow shallow, which increases the hydrangeas’ susceptibility to drought.
- Since hydrangeas are not well adapted to growing in full sun, they often lose more moisture from their leaves than they can pull up via their roots, which leads to the leaves wilting, turning scorch-brown, and eventually dying.
- A lot of wind dries up the leaves before the roots can absorb moisture. Hydrangeas require a lot of moisture, and excessive wind can quickly dry the leaves, leading them to droop and the hydrangea to succumb to dryness.
- Excessive nitrogen fertilizer makes hydrangeas droop because it encourages the growth of weaker, sappy foliage that sags under its own weight and gives the impression that the hydrangea is wilting.
- However, a dense tree canopy with an abundance of leaves can intercept rainfall and prevent rain from reaching the soil, generating dryer conditions. Hydrangeas are woodland plants that grow well beneath trees.
Increase the amount of soil moisture available at the roots as the top priority if you want to salvage a wilting and dying hydrangea by making some changes to its environment to aid in its recovery.
- As often as necessary, water the hydrangea to keep the soil regularly and uniformly moist. If your hydrangea is wilting, water it with a hose to keep the soil moist so the roots can absorb moisture. How frequently you need to water hydrangeas depends on your climate, soil type, weather, and how mature they are.
- Always use a deep, liberal soak as opposed to a quick rinse. The hydrangea’s tolerance to drought is increased by watering since it thoroughly soaks the soil surrounding the roots, promotes them to grow deeper into the soil, and helps them establish properly.
- Mulch should be applied to the soil’s surface surrounding the hydrangea in a 2 inch depth. Mulch options that can retain moisture in the soil after irrigation include leaf mold, compost, and well-rotted manure. In order to keep the roots cool and lower soil evaporation, mulch on top of the soil also blocks the sun from directly beaming onto the soil around the hydrangea.
- You can move the hydrangea to a sheltered area if it is in a sunny or windy location, or you can build a shelter with other trees and shrubs. I advise moving the hydrangea to a more protected area if it is still young and not well-established in the soil (under the protection of a tree if possible).
- Alternatively, you can put a tall plant, like bamboo or a tree, next to your hydrangea to help screen it from direct sunlight and drying winds (hydrangea grow best in morning sun followed by afternoon shade or dappled light throughout the day).
- Reduce the amount of fertilizer you use while the hydrangea is wilting. Hydrangeas can droop from too much nitrogen, which can come from fertilizer sprayed to the plant or runoff from fertilizer used on the grass. Use a good set of pruners to remove any drooping growth brought on by fertilizer use since it is more prone to pests, disease, and frost damage.
I advise digging up the hydrangea temporarily and amending the soil with lots of organic matter (compost, leaf mold, or well-rotted manure) to mimic the hydrangea’s moist soil conditions in its native habitat if your garden soil is particularly sandy or stony and the plant is wilting and dying right after planting.
The greatest long-term solution to the issue of wilting hydrangeas may be to prepare the soil so that it retains more moisture.
The best time to replant a hydrangea is in the spring or fall when the weather is milder. Replanting during the hotter summer months might make the problem worse, and since the plant is dormant in the winter, doing so runs the danger of root rot.
Over the following weeks, the hydrangea can recover from its withering appearance with sufficient hydration around the roots and shelter from wind or sun.
Why is my newly transplanted hydrangea wilting?
Due to transplant shock, which results from a contrast between the growing circumstances in the garden center or nursery where the hydrangea was originally cultivated and the particular conditions in your garden, hydrangeas frequently wilt after planting.
The hydrangea is susceptible to drooping during this period as it loses more water through transpiration from the leaves than the roots can absorb from the fresh soil. The roots of your hydrangeas can take some time to establish to the soil.
How often should you water a hydrangea that has just been planted?
Although the hydrangea’s leaves and flowers seem delicate, little careful care is actually needed for them. Everything you need to know about caring for hydrangeas is provided in these recommendations.
- Over the course of the growing season, water at a rate of 1 inch per week. To promote root growth, deeply water three times each week. All varieties of hydrangeas benefit from constant moisture, but bigleaf and smooth hydrangeas need more water. To water thoroughly while keeping moisture off the flowers and leaves, use a soaker hose. Hydrangeas won’t wilt as much if they are watered early in the day on hot days.
- To keep the soil around your hydrangeas cool and moist, add mulch. Over time, an organic mulch decomposes, supplying nutrients and enhancing soil texture.
- Apply fertilizer according to the type of hydrangeas you have. Every variety has varied requirements and will profit from applying fertilizer at various times. A soil test is the most effective tool for determining your fertility requirements.
- In March, May, and June, bigleaf hydrangeas require numerous mild fertilizer applications.
- 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.
- By selecting cultivars with resistant characteristics, you can avoid pests and diseases. Hydrangeas can have leaf spots, bight, wilt, and powdery mildew. Although they are uncommon on hydrangeas, pests might arise when the plants are under stress. Aphids, leaf tiers, and red spider mites are examples of potential pests. Your best line of defense is to properly care for hydrangeas.
Trick No. 1: Give Them a Soak
At Ardelia Farm & Co. in Irasburg, Vermont, Bailey Hale, co-owner and manager of floral operations, was our source. His suggestion to revive faded hydrangea blooms? He advises to soak the blossoms in warm to warmish water for 30 to 40 minutes.
Why? According to Hale, hydrangeas absorb water through both the stems and the flower petals. Your cut hydrangea will receive plenty of water and have an opportunity to rehydrate by being submerged.
Trick No. 2: Cut the Stems
Hale also suggests trimming the stems. Many people are aware that giving flower stems a fresh trim will prolong the life of bouquets, but Hale claims there is more to it than that: “It is more difficult for water to reach the blooms on stems that are longer.
To further aid the stem’s ability to absorb water, shorten the stems and then cut a crisscross pattern into them. In contrast to what is commonly advised for flowers with woodier stems, such as lilacs, he does not advise breaking the stems. “If the stems are broken, the vascular tissues that absorb water would be harmed, he claims.
Trick No. 3: Use Boiling Water
When hydrangeas are clipped, a sort of sap is produced on the severed stems, which can stop the water from reaching the flowers and make them droop. Water should be heated in a kettle and brought to a boil. Fill the container with the boiled water. Your arrangement should be emptied of the wilting hydrangeas, and the stems should be recut at a 45-degree angle. The stem should be held erect in the boiling water for around 60 seconds after being incisionally made with a vertical slit. The hydrangeas should bloom again in about an hour if you put them back in your floral arrangement.