What Flower Bushes Have Thorns?

Everybody has come across a flower bush with thorns before, and there are plenty of benefits to planting these flower types in your garden.

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Everybody has come across a flower bush with thorns before, and there are plenty of benefits to planting these flower types in your garden.

There are tons of different plants that use thorns and these are categorized as defense plants. They work in a way to protect both your home and garden from intruders. Some of the most popular flower bushes that have thorns are bougainvillea, roses, flowering quince, and firethorn plants.

Flower bushes with thorns or defense bushes are quite common to find but you can plant your desired plants with ease too. However, all flower bushes are not a great match for your garden because of the way they grow. You should avoid bushes with thorns if you have pets or kids who play in the area often too.

Spending time in the garden allows you to learn more about the plants around you and this includes flower bushes that have thorns. Keep reading to learn more about these plants and how you can include them in your garden.    

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What Flower Bushes Have Thorns?

It may sound crazy, but plants can serve as home security. And this is possible because of flower bushes that have thorns. They make it more difficult to climb over fences or sneak through gardens and yards.

There are many different types of bushes to consider. They tend to grow with vines that include spikes or thorns on them, and we have included some of the most common ones below.

Flower bushes can come in a wide range of shapes and sizes. Some bushes are covered with thorns, while other plants may only have a few prickly leaves. We all know that we should avoid contact with the thorns to avoid injury, but what are the plants to look out for?


The Bougainvillea plant is a thorny bush with a long vine that grows beautiful leaves that sprout into colorful flowers. Typically, you will see a bloom of white flowers but the colors vary greatly and could also be blue, purple, or pink too.

This plant can grow up to 40 feet long and it is an evergreen bush if you live in an area with yearly rainfall. If your region experiences a dry season, they will experience the fall and winter by losing their leaves.


Roses are one of the most well-known and popular flowers in the world. This is a perennial flowering bush with thousands of different species that bloom around the world, with nearly all of them growing with a thorny stem or vine.

The roses have evolved with these thorns to help keep themselves safe from predators. It is also believed that they may have evolved in this way because of all the insects in the flower's natural habitat which would try and steal their pollen.

Flowering Quince

The flowering quince bush is a thorny shrub that produces flowers in late winter or early spring, but only if the conditions are just right. It will have thorns that are about an inch long. The leaves can bloom to a variety of colors based on the many different species that exist.  

It can grow between 6-10 feet long and it is known to bloom in early to mid-spring depending on the conditions. They have also become much more popular in North America recently as a popular option for people to grow in their garden.  


Firethorn bushes are thorny bushes that grow in various parts of the world, including North America. The plant has sharp thorns that protect the berry-like buds when blooming that grow during late spring or at the start of summer.

The bloom of these bushes is a pyracantha fruit known as a pome. They can be either red, orange, or yellow and they are mildly poisonous and not safe for human consumption. However, the growth is extremely pleasant and provides a nice aesthetic look to any home garden.  

Where To Place Flower Bushes That Have Thorns

The best place to put your flower bushes with thorns is in your garden area where you can allow them to grow properly. However, they are versatile and can be placed in different areas assuming you allow 2-8 feet of space for them to grow.

You should also be sure that the area you put these bushes in gets plenty of exposure to sunlight. The plants we have discussed all need exposure to sunlight to grow properly and reach full bloom.

You will also need to think about the soil. It should be healthy and moist to allow proper watering. It should be an area that is not easily flooded too, because without proper drainage too much water could ruin your flower bush growth.

For safety, try to avoid planting flowering bushes in your front yard if you have small children. The thorns can injure them and also make it difficult for them to play. This also includes pets too. It is best to find an area where they never visit you to avoid injuries.

Benefits of Thorny Flower Bushes in Your Garden

There are many benefits of thorny bushes in your garden. They can be used for privacy and fences and can be colorful and lively too. We will take a look at the various benefits of thorny bushes in your garden.

1. Provide a Protective Barrier

The first benefit is that they are great for privacy. When you use thorny bushes as a fence, they will keep people from peering into the yard or property that is behind them. This is very important in places where you need to keep some things private such as your house or business.

They can protect your home from intruders. If you have an intruder that is trying to enter your property, there is a chance that they will get cut by the thorns. They are also known for providing privacy. They tend to grow larger and block the view of people on the other side of your property which provides some privacy for you and your family.

2. Keeps Unwanted Animals Out of Your Garden

Thorny bushes also make good fences because they create a barrier so animals cannot go through them, which also helps with privacy when people do not want animals to come inside their yard or property either.

They are very good at keeping these pesky animals out of the garden. A lot of common household pests such as rabbits, deer, and raccoons will avoid the bush because they know how sharp the thorns are.

These plants are beneficial because they provide a sanctuary for a variety of wildlife and keep your garden free from unwanted pests.

3. Attractive Appearance

Thorny plants are beneficial because they have an attractive appearance. They give off an aroma that attracts pollinating insects, which in turn helps with the reproduction of other flowers.

These plants provide an excellent natural form of protection for homes and gardens by acting as a barrier to keep rodents and other pests away from gardens and homes. Just by looking at some of the plants listed, you can imagine the beauty of a rose bush or a Bougainvillea plant near your home.

Should You Plant a Flower Bush With Thorns?

With all the benefits of having a flower bush with thorns, the decision on whether to plant one is not as easy as it seems. It depends on how much maintenance you are willing to do for your garden.

You also need to consider the location of a flower bush with thorns. It should not be in an area where children or pets will be playing in your garden often. If you do not have a location like this, then planting a flower bush with thorns is not recommended because it could be dangerous for them.

However, if you have issues with intruders into your garden then it might be beneficial to include flower bushes with thorns. They will keep animals away and stop them from eating your growing plants.

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