Are Hydrangeas Indoor Outdoor Plants? (Garden Advice)

Hydrangeas, with their stunning blossoms, have become a favorite among gardening enthusiasts. But do they belong indoors or outdoors? In this informative blog post, we’ll delve into the ideal environment for these showstoppers, providing you with all the necessary insights to grow them successfully.

While you’re here, you might also be interested in learning about other beautiful plants like mums and how to keep your outdoor plants safe from toxic threats to your dogs.

Key Takeaways
Hydrangeas are popular ornamental plants with large, showy blooms.
There are several different types of hydrangeas, including mophead, lacecap, and panicle.
Hydrangeas prefer partial shade or filtered sunlight, and need regular watering to thrive.
The color of hydrangea blooms can be influenced by the acidity of the soil.
Hydrangeas can be grown indoors in a bright, humid environment.
Prune hydrangeas at the appropriate time for the variety, either after blooming or in late winter/early spring.

Continue reading to broaden your gardening knowledge and cultivate a breathtaking array of plants in your home or garden.

Why is Good Hydrangea Care So Important?

Hydrangeas are beautiful, hardy plants that can be grown both indoors and out. But if you don’t take proper care of them, they’re susceptible to a number of ailments that can damage or even kill the plant.

That’s why it’s so important to learn how to properly care for your hydrangea so you can enjoy its beauty for years to come!

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Are Hydrangeas Indoor Outdoor Plants?

You may have heard that hydrangeas are indoor/outdoor plants, but this is not true. The truth is that hydrangeas can tolerate cold temperatures as long as they aren’t exposed to prolonged periods of frost or below freezing temperatures for long periods of time. 

If you live in a mild climate zone like zone 8 or above then it’s safe to say that your hydrangea will be able to thrive outdoors year-round without any problems.

The best way to ensure your plant grows healthily is by giving it enough water and sunlight so that the leaves don’t start turning brown. 

If they do turn brown, then it might be because there isn’t enough sunlight reaching them through windows inside buildings such as homes with thick walls made out of brick; also known as “brick walls.”

Should I Use Mulch Around My Hydrangeas?

If you are planting a hydrangea near your house, you should use mulch to help retain moisture. Mulch can also be used around other plants in the garden, but be careful not to put too much mulch around your plant’s roots because it can cause them to rot or become too wet. If there is already some mulch in your yard and you want to add more (you may find that it gets dirty over time), try putting down a layer of newspaper first before adding the new layer of organic material on top. 

This will prevent insects and weeds from growing between these two layers.

Mulch can also attract bugs such as ants and slugs, so if you have pets that like eating those things then keep this mind when using mulch around their plantings! Make sure not

to use any type–organic or otherwise–of chemical-based pesticides on top either; this could kill off any beneficial insects living underneath which would otherwise help keep pests away from our homes!

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Is It Safe To Plant Hydrangeas Near A Dog?

Hydrangeas are toxic to dogs and cats. If you have pets that like to eat plants, don’t plant any hydrangeas or other blue flowers near them. 

You may also want to consider keeping your pet indoors during the flowering season of your hydrangea bush so he doesn’t get tempted by the bright colors. 

Some homeowners choose not to grow hydrangeas because they worry about their pets getting into them (or other poisonous plants).

Do You Need To Water Hydrangeas After They’re Potted?

Hydrangeas are drought tolerant plants. This means that they will not need to be watered after they are planted in the ground. 

However, if you decide to plant them in pots or other containers, you will need to water them regularly until they become established in their new home. 

The best time to water your hydrangea is about once a month during the summer months and less often during the winter months when it gets cooler outside.

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How Do I Water Hydrangeas In The Winter?

There are two main things to consider when watering your shrub in the winter: the size of your plant and how much rain it has received. 

Hydrangeas grown in containers need regular water, while plants that have been planted in the ground can sometimes go a little longer without being watered.

If you have a small plant (less than 6 feet), you should try to water it every other week or so if possible. 

Bigger plants may need more frequent watering during periods of drought, so check on them daily or weekly depending on how well they look after being neglected for several days.

The amount of rainfall that your area receives also affects how much watering is needed for hydrangeas during this period of time because hydrangea bushes require more water than those which grow in containers due to their roots being exposed directly into the soil instead of being confined within a pot where their roots cannot spread out as far as they would like too do naturally.

How Do I Care For Hydrangeas In The Winter?

To keep your hydrangeas healthy and beautiful, you’ll want to make sure that they’re planted in the right type of soil. If you’re planting them in a container, be sure that it has good drainage holes in the bottom; otherwise, they can get waterlogged and rot. 

The plant should look like it’s planted just below ground level if the roots are too deep, they’ll have trouble getting enough oxygen. 

It should also be watered regularly during dry spells but not allowed to sit in water or stay wet for long periods; because these plants can lose their leaves easily when they get too dry or cold, overwatering can cause them to drop their flowers prematurely.

It’s also important not to fertilize your hydrangea during wintertime months the plants need time off from being fed so they don’t grow too quickly and become susceptible to disease or pest infestation later on down the line!

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How Long Does It Take To Grow Hydrangeas From Cuttings?

You can grow hydrangeas from cuttings, which is a great way to create more plants if you have limited space. The process takes about three months from planting time to harvest. 

Some hydrangeas have been known to be grown from seed, but the majority of the varieties need hardwood cuttings in order to produce blooms the first year. 

There are three main types of hydrangea: mophead (with large flowers), lacecap (with smaller blossoms on top and bottom), and oakleaf (which has leaves that resemble oak leaves). 

To ensure success with your cutting project, select healthy specimens as donor plants; look for those that are free of diseases or insect infestations.

How Deep Should I Set My Hydrangea Roots In Soil?

For optimum results, you should use a sharp spade or shovel to dig a hole about two times deeper than the size of your root ball. Make sure to remove any rocks or debris that might interfere with the growth of your new plant. 

When you’re finished digging, fill in some topsoil and then add some compost below this layer to help maintain moisture levels throughout the season. 

Be sure not to compact any soil around the roots; as it settles, it will form an air pocket between them and help promote nutrient absorption.

How Do I Prune My Hydrangea Bush?

Prune your hydrangea in early spring, after the threat of frost has passed but before new growth begins.

Cut back about one-third of the plant’s stems to a few inches above their base. You want to leave an eye the place where leaves emerge on each stem that you cut back so that it can grow into a new bush.

When you prune your hydrangea, make sure that each branch is cut back at least three feet from any other branches or stems coming off its trunk or main stem (or whatever structure is being used as its trunk). 

This will allow enough space for air circulation and sunlight penetration, which are key requirements for good growth and flowering.

Since this process causes damage at the base of each pruned piece, don’t do it until after all danger of frost has passed for your area; this will give new rootlets time to form before winter arrives.

Work on one part at a time so that you won’t get lost among all those branches!

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How Can I Keep My Hydrangea Bushes Colorful All Summer Long?

  • Keep the soil moist. Hydrangeas require moist soil to grow well, so make sure to water regularly as needed.
  • Water in the morning. If you water your hydrangeas at night, you may attract mosquitoes and other pests.
  • Don’t over-water! Too much moisture can rot roots and cause fungal diseases in the plant’s leaves, stems, or buds (the flower parts).
  • Don’t let the soil dry out completely; this will cause wilting and yellowing leaves. However, don’t keep them too wet either! If everything is soggy for too long this can also cause root rot issues with your plants so don’t overwater them unless absolutely necessary (and even then just slightly).

What Are The Best Ways To Get Rid Of Moles In My Yard Or Garden?

Moles are pests that can cause damage to your yard and garden. They make tunnels underground, which can damage the roots of plants and trees, making them more susceptible to drought and disease. 

Moles also eat earthworms, insects, and grubs animals that are good for your garden! To get rid of these pesky rodents:

  • Apply repellent to keep them away from certain areas
  • Use traps or poisons if necessary

What Is The Average Lifespan Of A Hydrangea Tree In Northern Climates?

Hydrangea trees are not actually trees, but rather shrubs. A hydrangea tree with healthy roots can grow up to 50 feet tall and wide. 

Hydrangeas can be grown indoors or outdoors as long as they are in a well-lit area that receives sunlight from at least six hours per day. 

If you want your hydrangea plant to stay small, prune off any new growth every year after the plant blooms once it has reached its desired size by pinching off all buds except one flower bud on each stem.


Hydrangeas are one of the most popular flowering shrubs for good reason. They’re easy to grow, long-lived and beautiful, but they do require some special care to keep them in top condition. 

If you have any questions about hydrangeas or other plants in your garden, please leave a comment below! We’d love to help.

Further Reading

Here are some additional resources to learn more about hydrangeas and gardening:

Garden Plant of the Moment: Hydrangea – Learn about the different types of hydrangeas and how to care for them in your garden.

How to Grow Hydrangeas Indoors – Discover tips for growing beautiful hydrangeas as indoor plants.


Can hydrangeas be grown indoors?

Yes, hydrangeas can be grown indoors in a bright, humid environment. Choose a suitable container and potting mix, and keep the plant well-watered and fertilized.

Do hydrangeas prefer sun or shade?

Hydrangeas prefer partial shade or filtered sunlight, especially during the hottest parts of the day. However, some varieties can tolerate more sun exposure than others.

How often should I water my hydrangea plant?

Hydrangeas need regular watering to thrive, especially in hot and dry weather. Water deeply once or twice a week, depending on the weather and soil moisture level.

When is the best time to prune hydrangeas?

The best time to prune hydrangeas depends on the variety. For most hydrangeas, the ideal time is after they have finished blooming in late summer or early fall. However, some types should be pruned in late winter or early spring.

How do I change the color of my hydrangea blooms?

The color of hydrangea blooms can be influenced by the acidity of the soil. To change the color from pink to blue, add aluminum sulfate to the soil. To change the color from blue to pink, add lime to the soil.