Can I Put My Potted Hydrangea Outside?

Hydrangeas are beautiful plants that can thrive both indoors and outdoors, depending on the type and the growing requirements. If you have a potted hydrangea, you might be wondering to put it outside. 

Well, yes you can! But there are a few things you need to consider before moving your plant outdoors.

Hydrangeas can survive outdoors in USDA zones 3-9, depending on the specific variety. It’s important to select a variety that is suitable for your climate to ensure its survival.

Firstly, not all hydrangea varieties are suitable for outdoor growing. Some varieties, such as the mophead hydrangea, are best grown in containers and kept indoors. 

Hydrangea plants are popular plants which are known for their beautiful, large blooms that come in a variety of colors.

These plants can be grown indoors and outdoors and are a favorite among gardeners. They are native to Asia and the Americas and can thrive in a range of climates and soil types.

When Can I Put My Potted Hydrangea Outside?

hydrangeas can survive outdoors

It’s best to wait until the weather is mild and stable before putting potted hydrangea outside. Late spring or early fall is the best time to move your potted hydrangea outdoors.

Before moving your plant outside, make sure the temperature outside is suited for your plant. Sudden temperature changes can shock the plant. Slowly expose your plant to outdoor conditions.

Moreover, plant changes when brought outside are a change in light exposure. When kept indoors, hydrangeas receive less direct sunlight than they do outdoors. 

As a result, they may need time to adjust to the increased sunlight exposure.

Finally, when moving your hydrangea plant outside, make sure it has appropriate drainage. Excess water can cause the plant’s roots to rot, which can be fatal. 

Make sure the pot has drainage holes and that water can easily drain away from the roots.

Ideal temperature to grow hydrangeas

Hydrangeas are generally hardy plants that can tolerate a wide range of temperatures. The ideal temperature range for growing hydrangeas is 50 to 60 degrees F. However, different varieties of hydrangeas may have slightly different temperature preferences.

If the temperature is too high then the hydrangeas can become wilt and struggle to grow. 

Also, Hydrangeas thrive in areas with moderate humidity. Dry air can cause the leaves and flowers to dry out, while excessively moist air can lead to fungal growth and other problems.

Sunlight requirements of hydrangeas

Like most plants require sunlight, hydrangeas require too. However, the requirement of sunlight for hydrangeas depends on the varieties and the suitable climate for them. 

Hydrangeas do best in areas where they receive morning sun and afternoon shade. That is because they need some sunlight to grow, but too much direct sunlight can affect your plant.

If you’re growing your hydrangea plant in a hot and dry climate then give them some shade to prevent the leaves from drying out. Also, if your hydrangea is grown in a cooler climate, then give them more sunlight to promote flower growth. 

In general, most hydrangea varieties need around 4-6 hours of sunlight per day.

If you’re growing hydrangeas indoors, place them in a spot that receives plenty of natural light. It’s recommended to place the plant near a window facing south.

When growing hydrangeas outdoors, keep in mind the changing sunlight throughout the day and season. As the sun moves across the sky, the amount and severity of sunlight on the plant will change. 

If you’re not sure about the ideal spot for your hydrangea then, by observing the amount of sunlight it receives throughout the day and make adjustments accordingly to it.

Watering Outdoor Hydrangea plants (In Summer & Winter)

In summer months, when temperatures are high and the sun is strong, hydrangeas need more water than they do in cooler months. 

Water them deeply and regularly, making sure the soil is consistently moist but not overwatered. You can make it by setting your watering schedule once in a week.

In winter, when the temperature is cooler and your plant is dormant, water them less as compared to summer watering. Once a month is ideal. Allow the soil to dry out slightly when watering it again. However, monitor your plant and make sure it doesn’t dry out completely.

Soil for growing outdoor hydrangea plant

When it comes to growing outdoor hydrangea plants, soil quality is the key. This flowering plant prefers well-draining soil that is rich in nutrients. This plant prefers a pH level between 5.5 and 6.5.

Hydrangeas grow best in soil that is rich in nutrients, well-draining, and moist.

In addition, to nutrient-rich soil, choose potting soil that can retain moisture for a longer period of time. This is because outdoor soil tends to dry out quickly due to exposure to sunlight and wind. 

Avoid using heavy, clay-like soil for your outdoor hydrangeas, as this type of soil can hold too much moisture and lead to water logging. Also, sandy soil may drain too quickly and not retain enough moisture for the plant to thrive.

(Check this out: Do Hydrangeas Like Clay Soil?)

Mulching – why it is important for outdoor plants

Mulching is an important step in caring for outdoor plants, including hydrangeas. It involves spread a layer of organic or inorganic material over the growing soil around this flowering plant. It provides a variety of benefits to the plant.

The main benefit of mulching is that it helps keep moisture in the soil. Also, mulch stops water from evaporating too fast from the soil, which can help keep the soil moist and hydrated. This is especially for plants like hydrangeas that require consistent moisture to grow and thrive.

Another benefit of mulching is that it helps regulate soil temperature. In the summer season, mulch can help keep the soil cooler by blocking the sunrays. Whereas in the winter, it can help insulate the soil and keep it warmer. This can help protect the roots of the plant and keep it healthy and thriving throughout the year.

Mulching also helps suppress weeds by blocking their access to sunlight and preventing them from growing.

Lastly, as the organic mulch breaks down, it releases nutrients into the soil, which can help fertilize the plant naturally. This can help reduce the need for additional fertilizers and promote healthy growth and blooming.

(Also read: Are Eggshells Good for Hydrangeas?)

What is the lowest temperature for potted hydrangeas?

Hydrangeas can tolerate temperatures as low as 32°F, but temperatures below this can damage your plant. If the temperature drops too low, your plant can suffer from frost damage.

Protect your potted hydrangeas from low temperatures by bringing them inside during the winter months. If you live in an area with mild winters, you can keep them outside. Be careful of your temperature changes.

Where is the best place to plant hydrangeas outside?

The best place to plant hydrangeas is in an area that receives morning sun and afternoon shade. That will allow your plant to get enough sunlight to thrive without getting scorched by direct afternoon sun. 

If you live in a hotter climate, plant your hydrangeas in a shadier location to protect them from direct sunlight and heat.

Moreover, choose a location that is protected from strong winds. Hydrangeas have delicate stems and can be easily damaged by strong gusts of wind. Plant them in a suitable place.

Can hydrangea survive frost?

Hydrangeas are hardy plants that can survive in a range of temperatures, but they have their limits. While they can tolerate some cold temperatures but they can’t go well with extreme cold or frost.

However, it can depend on the varieties of hydrangea. If you have selected a hydrangea variety that is suitable for the hardiness zone you are growing in, then the plant has a good chance of surviving a cold winter.

Moreover, if your outdoor hydrangeas are exposed to frost, it can damage the plant’s leaves and flowers, causing them to turn black or brown and wilt. 

Can my hydrangeas stay outside in winter?

To know hydrangeas can stay outside in winter can depend on several aspects such as the specific variety of hydrangeas you have and the climate of your area.

Some hydrangea varieties, such as the panicle hydrangea, are more cold-hardy and can survive winter temperatures with little to no damage. 

Can hydrangeas survive in hot weather?

Yes, hydrangeas survive in hot weather. While hydrangeas thrive in moderate temperatures, they can also survive in hot weather with proper care and attention.

Hydrangeas are sensitive to direct sunlight and can wilt easily when exposed to excessive heat. Therefore, it’s important to plant hydrangeas in areas that receive partial shade, especially during the hottest parts of the day. Providing a bit of shelter can help protect the plant from intense heat and sun.

Another aspect to consider is watering. Hydrangeas require consistent watering during hot weather to prevent them from drying out. 

Important tips while Growing hydrangeas Outdoors

Here are some important tips to keep in mind while growing hydrangeas outdoors – 

  • Choose the right location – Hydrangeas prefer partially shaded areas with well-draining soil. Planting them in direct sunlight can cause the leaves to wilt and the flowers to fade.
  • Provide water – Hydrangeas require consistent watering, especially during hot weather. Keep the soil moist and make sure to water deeply to encourage deep root growth.
  • Fertilize – Hydrangeas benefit from regular fertilization, especially during the growing season. Choose a fertilizer that is high in phosphorus to encourage flower growth. (Read on this article: Is Bone Meal Good for Hydrangeas?)
  • Prune as needed – Pruning hydrangeas can help control their size and shape, as well as promote healthy growth. The ideal time for pruning is in early spring, before new growth starts.
  • Protect from frost – Protect your hydrangeas from frost in the winter season. Covering the plants with a frost cloth can help prevent damage.

(Read this article: How to grow sweet peas in hanging baskets?)


Hydrangeas are beautiful and versatile flowering plants that can thrive outdoors with the right care and attention.

By considering factors such as sunlight, soil, water, and temperature, as well as following important tips for growing and maintaining outdoor hydrangeas, you can enjoy vibrant blooms and healthy plants in your garden.

With attention, you can easily take care of your hydrangeas in hot and cold temperatures.