How To Keep Hydrangeas Alive Indoors

“For Mother’s Day, my daughter handed me a lovely hydrangea. It has done so wonderfully that I’m curious if I should plant it outside or keep it within as a houseplant.”

Hydrangeas with foil encircling the pot, whether they were a gift or something you bought yourself, frequently differ from those bought at a nursery. The foil-wrapped hydrangea is often grown for a single, grand performance. The plant has been specifically fed to produce a lot of huge blooms quickly, frequently at the price of the plant’s long-term health.

The hydrangeas selected for this project are exclusively grown in greenhouses and might not be winter hardy where they are purchased.

If your locale isn’t warm enough to cultivate hydrangeas outdoors, you might wonder if you can grow them indoors as a houseplant.

A. There are a variety of reasons why growing hydrangeas inside in a home environment is not particularly successful. When hydrangeas may experience a period of dormancy brought on by chilly weather, they thrive. Hydrangeas rarely blossom indoors, attract insects, and lose their leaves unless they are in a greenhouse. They frequently dry out too rapidly and wilt, which makes them weaker.

However, some gift/florist-type hydrangeas may be grown extremely well in the landscape, as you can see from the images below.

Although growing hydrangeas indoors is not the optimal answer, it is conceivable if one lives in an apartment or in an area where they cannot survive:

1) Put the hydrangea in the coolest part of your house; ideally, an unheated room.

2) Position it close to a window so that it receives the most light possible.

The third and most crucial tip is to not overwater the plant by letting it sit in water or by watering it too frequently. It’s preferable to keep it dry during the winter, but it shouldn’t ever get too dry that it wilts.

Whenever possible, it is ideal to plant the potted hydrangea outside. It should only be planted outside in the early to mid-summer because it needs time to get used to the weather before winter.

In conclusion, unless it may be planted in the garden, foil-wrapped hydrangeas are best employed as a temporary plant in a person’s home.

Are hydrangeas able to survive inside?

Using Hydrangeas Indoors Hydrangeas, prized for their magnificent blossoms, have long been produced successfully as blooming indoor houseplants. Their blooms have a softball-like shape and size, measuring 5 to 6 inches in diameter. The explosion of color produced by the double-flowered variety is spectacular.

How are indoor potted hydrangeas maintained?

Remove any foil wrapping from the hydrangea if it was a gift. Remember that hydrangeas offered for sale around the holidays might not be hardy enough to endure indoors. If you’re serious about growing hydrangeas indoors, your chances of success may be higher if you buy them from a nursery or greenhouse.

Place the hydrangea in a sizable pot filled with superior potting soil. Put the plant in an area with lots of light. Hydrangeas planted outside can take some mild shadow, but interior plants require lots of light (but not intense, direct sunlight).

When the plant is blooming, give your potted hydrangea indoor plant periodic waterings, being cautious not to overwater. After blooming, reduce watering but never let the potting soil go completely dry. If at all feasible, use distilled water or rainwater to hydrate potted hydrangea houseplants because tap water frequently contains chlorine and other pollutants.

If the air inside is dry, use a humidifier or put the plant on a humidity tray. Particularly when flowering, hydrangea thrive in a cool environment with temperatures between 50 and 60 degrees F (10 and 16 degrees C). The environment is probably too warm if the leaves start to get brown and crunchy around the edges.

Keep heat sources and drafts away from the plant. While the plant is blooming, feed it once a week with a water-soluble fertilizer that has been diluted to half strength. After that, limit feedings to to one monthly.

It is advised to give hydrangeas a time of hibernation in the fall and winter when growing them as houseplants. Place the plant in a room that isn’t heated and is about 45 degrees Fahrenheit warmer (7 C.). To keep the plant from wilting, the potting mixture should be kept on the dry side but only lightly watered when necessary.

How frequently should a house hydrangea be watered?

To help maintain moisture when planting in a container outside, choose a light-colored ceramic pot. Dark colors heat up more quickly. Make sure a drainage hole is present! At least three times every week, the hydrangea needs to be thoroughly watered. Never simply water the plant in one spot; always water it all the way around the container. The pot’s bottom ought to leak water. Never leave it submerged in water because the roots will rot away.

Why is the hydrangea I have indoors dying?

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.

How long do hydrangeas bloom indoors?

Do hydrangeas thrive in containers? Given that potted hydrangeas received as gifts rarely survive longer than a few weeks, it’s a reasonable question. The good news is that they can, given the proper treatment. Growing hydrangeas in pots is a great idea because they can grow to be fairly large and have beautiful blossoms all summer long. Learn more about container-grown hydrangea plants and how to take care of hydrangea in pots by reading on.

Are hydrangeas grown indoors and outside different from one another?

Mophead hydrangeas can be cultivated outside wherever the wintertime temperature stays above -15oC because they are hardy (5oF). However, as they were grown in greenhouses and given fertilizer to induce early flowering, potted hydrangeas sold as houseplants may require some time to acclimate to life outside before being put out. Place them outside in their pots during the day and bring them inside at night to harden them off for one to two weeks before to planting. Hydrangeas that have been grown for outdoor planting can be planted immediately. Mid- to late April, when the soil has had time to warm up, is the ideal time to plant mophead hydrangeas outdoors.

The optimal conditions for hydrangeas are shade from the sweltering afternoon sun and moist, well-drained soil. They are therefore excellent alternatives for shady gardens, and in mid- and late-summer, their dramatic spherical flowerheads are absolutely gorgeous. Regularly water hydrangeas, especially during dry spells, and in the spring or fall, mulch with compost or other organic material.

Because of the soil’s pH (acidity or alkalinity), pink and blue mophead hydrangea blossoms have the unusual ability to change color. The blossoms will be a deeper shade of blue the more acidic the environment is. Flowers turn a gorgeous pink on alkaline soil. The color of white mophead hydrangeas doesn’t alter.

After a potted hydrangea blooms, what should you do with it?

Hydrangeas produce beautiful, vividly colored blossoms on globe-shaped flower heads, and they are frequently presented as gifts during the spring holidays. The United States National Arboretum claims that Hydrangea macrophylla is the most widely cultivated species in the country. Hydrangeas make excellent indoor plants and may be grown outdoors in U.S. Department of Agriculture zones 6 through 8. If you received a potted hydrangea as a present, it was probably already in bloom. After the petals first fade, many people throw away their hydrangeas, but with the right care, the plant will bloom once more.

What do I do with my hydrangea in a pot over the winter?

Bring potted plants indoors before the first frost for the greatest hydrangea winter protection. They can stay outside and be protected by covering the entire pot and plant if they are too heavy to transport. Foam insulation is one way to safeguard your potted plants.

Do hydrangeas survive in containers?

Selecting the appropriate-sized planter for your hydrangea is the first step in planting. Because their roots are vigorous and quickly fill smaller containers, hydrangeas do not grow well in smaller containers. Additionally, smaller containers dry out far too quickly for hydrangeas. Generally speaking, we advise purchasing a medium to big planter that is at least 2 feet wide.

Make sure there are drainage holes at the bottom of the planter once you’ve chosen it. It is necessary for hydrangeas to be grown in pots because they will decay if the soil lacks adequate drainage. To aid in drainage, we also like to add a layer of rocks at the bottom. The most important stage for healthy plants is proper drainage.

You must then purchase soil made especially for planters. In containers, topsoil can occasionally fail to drain properly. Compost can be applied to the soil to provide additional nutrients.

Plant the hydrangea at the same depth in the soil as it was in the pot it was previously growing in when putting it in the pot. To water the planter without the water washing out the top, leave at least 2 inches between the top of the soil and the top of the planter. To assist the plant stay firmly in the pot, gently press down on the dirt around it to remove any air pockets.

Should hydrangeas be misted?

You’ll need to conduct some detective work to find out why your hydrangea is drooping. Reviving your plant should be simple if the damage’s origin has been determined.

Apply mulch three to five inches deep

In the spring, mulch hydrangea. Mulching can help your plant stay warm throughout the bitterly cold winter months in addition to keeping your soil moist throughout the summer. Pine straw, chopped leaves, or wood mulch are all suggested mulching materials for hydrangeas. Around hydrangeas, pile mulch three to five inches high.

Reduce the need to water by mulching at least once a year. Mulching should maintain soil moisture and stop potential drooping brought on by dry soil and underwatering.

Enrich the soil with organic matter

The prevention of plant drooping depends on healthy soil. In rich, well-drained loam soils, hydrangeas grow nicely. To increase the amount of beneficial microorganisms in the soil, you should add organic compost or aged manure. If the soil in your yard is clay, add gypsum and give it a good stir before planting hydrangeas. A fertile soil does not need more fertilizer.

Grow hydrangea in dappled light

Hydrangeas need between four and six hours in direct sunlight each day. However, keep in mind that the plant’s leaves and flowers will suffer from exposure to direct sunshine. Growing hydrangeas in partial or full shade will prevent the plant from burning or withering.

Hydrangea will remain healthy for a very long time if you can place the plant where it receives full morning sunshine and protection from the midday sun. When your

Mist the leaves and flowers

If the leaves and blooms of your hydrangeas are wilting, you can try to solve the issue by spraying the petals once each day. In addition to their roots, hydrangeas also take up water through their stems and blossoms. If your plant is growing in an environment that is hot and dry, misting is very important.

Additionally, spraying cut hydrangeas in a bouquet will maintain their health as the leaves and flowers take in the water and restore their turgidity.

Deeply water hydrangeas three times a week

If the top one or two cm of the soil feel dry, or if the leaves start to droop, hydrangeas need water. If you see these symptoms, water the plant well three times a week, either in the morning or in the evening. Despite the fact that they prefer moist soil, be careful not to overwater and cause damp soil.

Even in hot, dry summers, regular watering will help keep the large hydrangea blossoms in place.

Apply a low release nitrogen fertilizer

If your soil lacks sufficient organic nutrients, Clemson Cooperative Extension advises using a slow-releasing fertilizer for hydrangeas. Per 100 square feet, the experts advise using two cups of a 10-10-10 fertilizer. Hydrangeas require fertilizer in March, May, and July. But a soil test must be carried out first.

Use a fertilizer with additional phosphorus and potassium if your soil is high in nitrogen to balance the soil and prevent excessive blooms and droopy leaves.

Grow in a pot of about 12 to 16 inches in diameter

Because the water evaporates so quickly in small pots, I do not advise growing hydrangea there. Perhaps the reason your hydrangea plant is withering is because you have a small pot for it. The plant can be kept strong and healthy in a sizable container with a diameter of 12 to 16 inches.

Most crucial, the pot needs drainage holes at the bottom to allow air to reach the soil and the roots of the hydrangea. Keep the plant out of standing water.

General Hydrangea Care, Oregon State University Extension, 2022.