Growing flowers may look like an interesting and fun hobby, but in general, it is quite demanding, just like most other gardening activities.
If you want to grow a beautiful garden and enrich your living space with flowers of pink and blue color, then hydrangea is the right choice for you, and you will definitely find the perfect one among dozen of its species.
Best Soil for Hydrangeas
Hydrangeas are also known as hortensias, and they have more than 70 different species that differ in color, soil requirements, and location.
This is a beautiful plant that blooms during the spring and summer, and it is considered to be a shrub, so it doesn’t require special soil mixes like most other flowers.
They grow very quickly and can grow up to 15 feet high, and their flowers can last even during the fall, especially if it is grown indoors.
Even though there are plenty of differences in soil requirements among all these species, smooth hydrangeas require a good amount of water and great drainage in order to succeed, and that is something that stays the same for all of them.
Some species prefer alkaline soil, while other love an acidic one, and there are plenty of differences among different species of this plant, so you will really have to study each one with attention in order to create the perfect soil.
Hydrangea flowers of all these species are equally beautiful, but it seems like most people opt for growing bigleaf hydrangea and sun hydrangea.
Creating your own hydrangea mix can be exhausting because you need to create soil that will retain moisture, have enough organic ingredients, and find the perfect fertilizer.
For that reason, we recommend trying some of these pre-made potting mixes that are equally good as homemade one, and that will definitely provide you with amazing results.
QUICK OVERVIEW: Best Soil for Hydrangeas
Miracle-Gro Potting Mix
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Miracle-Gro Expand 'n Gro
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DaKine 420 Coco Coir Lite
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1. Miracle-Gro Potting Mix
As you probably know, Miracle-Gro is one of the most famous gardening companies, and their products will make any plant grow successfully, including your hydrangea plants.
This product is known to enhance your flowers’ growth and color, which is why so many gardeners use it to grow hydrangeas and provide them with spectacular colors and glow.
- Dimensions: 13 x 4 x 19 inches
- Weight: 9.26 pounds
What plants is it good for?
This potting mix is suitable for all types of planting, and you can plant hydrangeas of different species with it.
Since its main goal is to enhance the beauty of your flower, I recommend using it for vibrant species like blue hydrangeas, pink hydrangeas, french hydrangea, and other types that are known for their beautiful flowers.
It may look very simple, but this potting mix is great, and it is best to keep your plants in partial shade while using it because you don’t want too much sun to harm them.
By being exposed to bright indirect light for a few hours every day, they will get enough light and grow healthily without problems.
Even though this looks like one of the most simple potting mixes on the market, this Miracle-Gro is actually made for specific hydrangeas and helps them enhance the beauty of their flowers.
The product is pretty much organic, and it has regular ingredients like perlite, peat moss, vermiculite, and fir bark that will create a nutritive and stimulating environment for your plant.
It is known for light fertilizer application that makes up only 0.5% of the product but can still impact your flower color and provide you with beautiful blooms.
The mix also comes with a wetting agent that will provide the hydrangea with enough water, but still, make sure to get rid of the excess and create good drainage.
This is a great option if you want to plant hydrangea in late fall or late winter when there is no hot climate nor sun.
Since it has amazing ingredients and focuses on growing large flowers, this mix will create an almost ideal soil for your plant.
It can also feed the plant for up to 6 months, which makes it a worthy investment and eliminates the need for any fertilizer, especially if you keep it in partial sun.
However, the company also claims this product will make your plant grow at least 2 times faster than others, which is not really the case.
It gives amazing results, but you won’t see extremely fast growth, and that is completely fine because the most important thing is to grow a healthy hydrangea.
Unfortunately, many users have complained that their plants started dying after they have begun using this product, and even though there is no reasonable explanation for that, we can’t avoid the fact that it may be connected with this mix.
On the other hand, there are plenty of satisfied customers, which can definitely help your hydrangeas grow if used properly.
This is also a very cheap potting mix, so I recommend buying it and switching for another if you don’t see too much success with it.
- Enhances the color of plants
- Contains a natural fertilizer
- Very cheap
- Plenty of negative reviews
2. Miracle-Gro Expand ‘n Gro
This is one of the most famous Miracle-Gro products that will help your plant literally come back to life and thrive.
It is an extremely concentrated gardening soil that is very popular among gardeners because it helps the plant thrive almost instantly and develop flower heads faster than any other potting mix.
If you really want to see fast results and make your hydrangeas thrive and develop colorful blooms, this is the product you should start using right now.
- Weight: 5.09 pounds
- Dimensions: 15.5 x 11.5 x 3.5
- Contains compressed coir
What plants is it good for?
This Miracle-Gro potting soil is a great option for plants that are grown indoors, and it will do wonders for hydrangeas that are grown as houseplants and get little to no light.
Even though some people tend to use it for outdoor growing, this is definitely not made for outdoor conditions, and your plant can be seriously harmed if exposed to full sun, especially in early summer.
It is known to give amazing and very fast results, and feeding hydrangeas will become a lot easier once you start using it.
The mix can be used for different types of this flower, including hydrangea macrophylla, oakleaf hydrangeas, and mophead hydrangea.
However, you will have to control the soil all the time and make sure the soil is moist, and soil pH is adequate; otherwise, you might have some problems with your plant.
It will give you amazing results outside of the growing season, so you can be sure you will always be able to grow a healthy plant with it.
When using concentrated soil like this one, you will really have to control the acidity and the moisture all the time because just one small mistake can completely ruin your plant.
The potting mix is 100% organic, and it consists of peat moss, coarse sand, and pine bark fines that will create the perfect organic environment your hydrangeas need.
You will have to mix this potting soil with a very organic mix and make sure the proportion is right so the hydrangea doesn’t feel overwhelmed with chemicals found in it.
It is best to use this potting mix in early spring because it will help the flower buds develop the best and prepare the surrounding soil for great growth.
Miracle-Gro suggests watering this mixture at least twice a day at the beginning, which can be a very dangerous thing and can lead to things like overwatering.
It holds up 50% more water than other mixes, attracting different types of fungi, bacteria, red spider mites, aphids, and other pests.
If you want to make sure your hydrangea will grow well in this soil, make sure to mix it with 100% organic soil and get rid of the dead wood that may appear in it.
When using this mix, it is best to try to maintain a stimulating environment for your hydrangeas by controlling the soil and making sure it has a neutral pH at all times.
- Helps the plant grow faster
- Better water retention capabilities
- Feeds the plant for more than 6 months
- Prone to fungus and other bacteria
- Needs to be controlled all the time
3. DaKine 420 Coco Coir Lite
This DaKine Coco Coir mix is a soilless mix that is actually made for growing vegetables and fruits, but it seems to be working great on flowers like hydrangea too.
Even though this is not a very popular company among gardeners, their products are amazing, and they will give you very fast results and make hydrangea care a lot easier.
All of their products are have a special formula that promotes root growth and enhances the beauty of your flowers, and it will definitely work for most hydrangeas.
- Dimensions: 26.4 x 17.4 x 5.4 inches
- Weight: 14.37 pounds
- 1.5 cubic feet
- Special aeration formula
What plants is it good for?
This coco coir-based product is mainly aimed at fruits and vegetables, but gardeners claim they were able to see amazing results with their hydrangeas too.
It is great for indoor and outdoor planting, and it will definitely make a great choice for hydrangeas planted inside because it will provide them with enough nutrients.
This product can work for different types of this flower, including panicle hydrangeas, oakleaf hydrangea, bigleaf hydrangeas, macrophylla hydrangeas, hydrangea paniculata.
When using it, you can keep the plant indoors and expose it to afternoon shade from time to time because you will grow pink flowers and blue flowers without problems, even if it is not exposed to too much sun.
This is a great organic mix that will allow you to plant hydrangeas indoors without any problems and make hydrangeas bloom faster than most other potting mixes.
It is rich in organic perlite, shredded leaves, fir bark, and coarse sand that will create the perfect acidic soil and make growing hydrangeas a lot easier.
The mix is also rich in biominerals that will control the soil and make sure the hydrangeas are provided with enough moisture and air, preventing root rot and other problems that may appear.
Their unique formula will provide you with perfectly moist soil, and it will help the hydrangea root ball develop even in extremely cold or hot climates.
While you should follow the plant tag and all the instructions that come with it, you should still make sure you don’t mix this potting mix with any other you can find on the market because the results will not be that good.
When using this mix, you will create the perfect base of the plant, and it probably won’t need light fertilizer applications that are crucial for most hydrangeas.
Propagating is also a lot easier with this mix, and you will be able to prune hydrangeas with ease, even if you don’t have too much experience with it.
Smooth hydrangea plants usually need a lot of nutrients, and this is something you can count on with this mix because it is rich with the best organic ingredients you can find on the market.
Unfortunately, many people claim they had plenty of problems controlling the soil pH when using this potting mix, so you might need to go through reviews and see whether it is really a good option for your hydrangeas or not.
Since this product is a lot more expensive than other potting mixes you can find on Amazon, I believe you should do deep research before you decide to make a purchase.
- Special formula
- Good aeration
- Organic material
- Easy propagation
- Problems with pH levels
- More expensive than other mixes
4. Miracle-Gro Indoor Potting Mix
As you have already seen, Miracle-Gro has hundreds of different potting mixes literally, and this is just one more of them.
All of their potting mixes are known for helping your plants thrive and creating the perfect planting zone for basically any plant you can think of.
This is also one of their amazing products, and I highly recommend checking out this mix if you want to grow smooth hydrangeas.
- Dimensions: 16 x 10 x 5 inches
- Weight: 7.63 pounds
- Feed up to 6 months
What plants is it good for?
This indoor potting mix is a blend of many different container plants, and it works great for hydrangeas that are grown as houseplants.
It creates a great base for the plant, and even though it doesn’t provide you with very fast results, it will definitely help you grow a healthy flower.
I would recommend using it during the growing season ad exposing it to some morning sun from time to time if you want to make sure your hydrangea is getting all it needs.
This Miracle Grow potting mix is a blend of different container plants, and it is aimed at houseplants, so it does a great job with hydrangeas grown indoors.
Even though it is not organic, this product contains coconut coir which provides it with amazing water retention capabilities and helps retain the needed moisture in the soil.
There is also not a single bit of bark or compost, which means your plant should be completely free from fungus, gnats, and other species that tend to attack plants.
However, since it needs to be watered pretty often, you have to be very careful and make sure you don’t overwater the soil; otherwise, problems like this can still appear.
That tends to create many problems for beginner gardeners who never had to deal with problems like this, but it is really something that can easily be solved after some time and practice.
This potting mix will be able to feed your plant for up to 6 months, maybe even a month more, which usually eliminates the need for fertilizer and allows the plant to grow healthy without any chemicals.
Overall, users have nothing but good words about this product, and they claim they were able to see the results very fast, even though this product doesn’t claim that.
It is also very affordable and actually one of the most affordable Miracle-Gro potting mixes, so I believe it is a great investment and that it can work for many different plants you may have at home.
- Feeds the plant for more than 6 months
- Great growth-rate
- Suitable for different plants
- Can create problems with fungus
- Not the best option for beginner gardeners
5. Miracle-Gro Shake ‘N Feed Flowering Trees and Shrubs
You are probably not surprised to see one more of Miracle-Gro products on this list, and in this case, we are talking about their special mix for flowering trees and shrubs.
It works amazing for different flowers, including hydrangeas, and it can imitate their native soil almost perfectly.
- Dimensions: 4.25 x 13.5 x 7 inches
- Weight: 8.31 pounds
What plants is it good for?
This amazing potting mix is created for outdoor planting and flowers that need specific conditions in order to thrive, which makes it a perfect choice for hydrangeas.
It can be used for all flowering trees and shrubs, and since it is made specifically for these plants, it may be a bit too harsh for your hydrangea, but there’s nothing you can’t solve.
You can plant your hydrangeas outdoors even in the late frost, and they will still be able to grow well, which is a big advantage to this product.
It can be used both for plants that are grown in-ground and those that are grown in containers outside of your home.
This Miracle-Gro potting mix is known for having an amazing, organic ingredient list and providing its users with extremely fast results, no matter what plant they try to use it for.
It is a unique plant food mix enriched with completely natural ingredients and soil microbes that will be able to imitate the native soil of your hydrangea perfectly.
The mix is rich in kelp meal, earthworm castings, feather meal, and bone meal, and it is able to create a very nutritive organic environment that will satisfy the needs of most plants.
It is known for being able to grow flowers very fast and help them get their vibrant and beautiful color, even outside the growing season.
Soil microbes guarantee that they will be able to break down all the organic ingredients and take up all the nutrients from them and transport them to the roots of your plant.
Users claim that this product helps them grow even the tropical plants that would rarely succeed in their regions but also vegetables like tomatoes or avocados.
Its amazing formula will be able to keep your hydrangea fed for 3 months, which is a pretty good amount of time for a potting mix like this.
However, it is a very expensive product, so you really need to reconsider your budget if you decide to purchase it because you will need to buy it frequently.
- Natural and organic
- Contains soil microbes
- Works for various different plants
- Feeds the plant for 3 months
Things to Consider When Buying Best Soil for Hydrangeas?
No matter how good your soil or potting mix may look, all hydrangeas need several light fertilizer applications throughout the year.
This is something you should always keep in mind and make sure you fertilize it every time it needs; otherwise, it may start to die or rot.
I would recommend choosing some of the best nutritive fertilizers you can find because this is usually the only thing your hydrangea will need, and make sure its ingredients are compatible with the ingredients that can be found in the soil of your flower.
Different species of hydrangea require different pH levels, and while some are very easy to maintain, others need 100% alkaline soil or very acidic soil in order to succeed, so you will really have to take care of it.
I recommend controlling the pH levels of your hydrangea once or twice a week, and the moment you think there is a problem or that the soil is not performing well, repot it or add other organic ingredients that may better the situation and save the plant.
In general, hydrangeas prefer partial sun, and they can even be kept in the shade during their whole life and still be able to grow well.
However, it would help if you never exposed them to the full sun because it can seriously harm their flowers and dry the soil so much you will need to repot the plant into another one.
Related: 8 Best Fertilizers for Hydrangeas
What do I add to the soil when planting hydrangeas?
Hydrangea love growing in an organic environment, so you can add plenty of different organic ingredients and be sure the flower will grow successfully.
I recommend using compost, especially if you have your own homemade compost, and you can also add some composted manure for better soil texture.
What type of potting soil is best for hydrangeas?
As we have already mentioned, the key to growing beautiful hydrangeas is creating organic soil that will be made of ingredients of the highest quality.
It also needs to be very well-drained, and it would definitely be great if it had some Myco-Tone that will help stimulate the growth of the plant.
Which compost for hydrangeas in pots?
Even though there are many different pre-made compost mixes you can buy for your plant, I would always recommend creating your own one at home.
Hydrangeas need organic and natural soil, so the best compost you can use is the one you get from other plants or herbs you have in your garden.
However, if you really don’t have enough time for that, you can always opt for some of the pre-made ones you can find on Amazon or in your local garden center.
Can I use multi-purpose compost for hydrangeas?
This usually depends on the type of hydrangea plant you are trying to grow because there are quite a few sensitive species of this flower.
However, most of them will work just fine in multi-purpose soil, and you will be able to use the one you have used for the rest of your garden.