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A Complete Guide On Flower Bed Drainage

Adding a flower bed in your yard is the best thing ever! But it’s not an easy thing to do. Because it also needs a good drainage system to function properly. Without good planning, it’s almost impossible to make a good drainage system. 

How to install a flower bed drainage?

Start by locating all the areas where water is standing still. When done, choose a spot where the water will go. The area has to be lower than the flower bed area. Check the underground for pipes and start digging a trench. You’ve to install a pop-up emitter afterward. Route the flower bed if necessary in the end. 

Anyways, that was just a short answer to this problem. This can be a super lengthy and complex task. That’s why we’ve further elaborated on this. 

Keep reading if you want to know more about drainage systems and it’s installations!

3 Reasons Why Flower Beds Need Drainage

A drainage system is always beneficial and comes with a lot of pros. Flower bed drains solve water overflowing just like overflow drain of a bathtub. They hardly have any downsides.

That’s why we’ve discussed the pros of the drainage system in short. This will surely boost your morale! 

Reason 1: Soil Erosion 

During heavy rain, the garden soil can easily get eroded. When there’s excess water, it can take away the nutrients from the soil. 

This results in poorer health of the flowers and the plants. 

Reason 2: Weaker Roots

Water standing in the garden for a long time can cause stress on the roots. The roots start suffocating and dying. 

It also stops the growth of any sort of fungus around the plant. But with the drainage system, you can easily get rid of the water. 

Reason 3: Mosquito Outbreak 

If there’s standing water in the flower bed, it’s a palace for mosquitos. Among all variants, Dengue mosquitoes like to lay eggs on standing water. 

By installing a drain, you can reduce the total rate of growth to almost 0%. 

Improving soil drainage can solve these problems to an extent. But for a better result, you must have a drainage system built. 

How to Set Up a Flower Drainage System: 7 Steps

There are several steps to build a drainage system. Some of them may have several phases. Just remember to take your time and complete each step at a time. 

To start the process, you’re going to require these tools- 

  • A shovel
  • Drainpipe
  • Pipe locator
  • Ruler 
  • Flat spade blade
  • Trowel
  • Weed guard fabric
  • Pop-up Emitter

Manage these tools as soon as possible and you can get started! 

Step 1: Identify the Water Pools 

When the water can’t go somewhere else, it creates a water pool. It can either be huge or small. These pools are mostly found in the low areas. 

Carefully go through the entire flower bed or garden area to mark them.

Step 2: Choose an Ideal Spot

You now have to select an area where you can route the water. The spot has to be lower than the flower bed. 

On top of that, it also has to be far away from the garden. Take your time deciding the spot because the next steps will depend on this. 

Step 3: Look for Underground Pipes

After choosing the area, you can’t just start digging. Because there can be pipes underneath the area! 

Your best choice is to get help from 811. It’s the underground service alert and the call is totally free. Give a call and the servicemen will inspect the area. 

Another option is to get a pipe locator from somewhere. Order it online or try to borrow it from nearby gardening services. 

Step 4: Dig a Trench

If the area is marked safe, you can start digging. Get a shovel and tuck your sleeves. Because it’s going to be a lot of work. 

The ideal size of the trench is 4 inches deep and 6 inches wide. Well, that’s only for the area around the garden. 

The trench has to be slightly diagonal to make sure water can go downwards. Because of that, make the trench deeper as you dig further away. 

For every foot you’re digging, add 1 inch to its depth. Use a ruler to achieve precision. 

This may seem like a lot of work for you. In that case, don’t hesitate to hire a service. 

Step 5: Place the Drain Pipes

An underground pipe can ensure even a better flow. They aren’t that expensive and super easy to set up. 

But before you place the drain pipes, you’ve to put something in between. Because If you leave the pipe in the trench unprotected, it can get cracked. 

This creates the possibility of getting dirt and debris inside. This is also how humidifier drain lines get clogged. 

You can generally use any sheets to place underneath. But weed guard fabrics are the best solution for this. 

Luckily, they are cheap and affordable. Getting one will keep your pipes healthy and protected! 

Here are some of the best weed guard fabric sheets that you can get:

Weed guard fabric 1
Weed guard fabric 2 

This will let you choose easily and save you a lot of time.

After putting the fabric in, you can now place the underground pipes safely. You’ve already made the trench diagonal. For that reason, adjusting the pipes will be easy. 

Get an appropriate size of a drain based on your total trench size. The pipes will easily sit on the sheet. 

Here are some of our top picks regarding underground pipes:

Corrugated drain pipe 1
Corrugated drain pipe 2

You can now easily select whichever you like and get started! 

Some people may consider putting putty on the drains. But it’s more of a cure than prevention. It’s not a good cure either. 

Step 6: Setting Up a Pop-Up Emitter

In this step, you’re going to focus on how water will leave the pipes. An open pipe can get clogged easily. 

To prevent that, you’ve to use a pop-up emitter. When there’s enough water pressure, it’ll pop up and let the excess water out. 

Otherwise, it stays shut and nothing can get inside. This is a great option for keeping the drain unclogged for a long time. 

These are some of the best pop-up emitters that you can get:

Pop-up Emitter 1
Pop-up Emitter  2

Choose whichever you like more and get that installed!

And with that, your drainage system is complete. Don’t forget to pat yourself on the back. But if these steps seem complex to you, don’t hesitate to call the services. 

In case you are planning to bread dusty miller. You can do so easily because they do not require special care and they contribute to the aesthetics.


Question: What do you mix with soil to improve drainage?

Answer: Adding compost or manure can improve drainage. They’re one of the most useful additions when it comes to soil drainage. You can also raise beds and provide amendments. 

Question: Is sand good for drainage?

Answer: Sand is a good option for soil drainage. It has a hard texture. Because of that, water can move freely inside the soil. This can solve many landscape problems including water pools. 

Question: What soil has poor drainage?

Answer: Out of all types of soil, clay soils are the worst. It’s super dense and has a very strong bond. These are also extremely watertight and therefore, it’s difficult for the water to move. 

Take Away

That was everything we could provide on flower bed drainage. Hopefully, you’ve found your answers and the method seems clear. 

Last but not least, best of luck and happy gardening!