Square Foot Gardening Watering [5 Best Methods to Water]

Square foot gardening is a reliable method to produce abundant crops in a small space.

It’s simple to appreciate the compact design, but if you’ve ever considered the technique, you may have some questions about the logistics.

There are a few different methods available for watering square-foot gardens, and below is a detailed look at how you can set each up and their benefits.

Also Read: Square Foot Gardening for Swiss Chard

Watering Methods

Watering crops is one of the most crucial parts of proper plant care. It keeps them healthy by maintaining cell structure, facilitating photosynthesis, and regulating a plant’s temperature.

Depending on how much garden space you have, regular watering can be a hassle. Below are varying methods that can fit every situation.


Hand-watering plants are the most straightforward and traditional method. You’re likely familiar with a technique involving a watering can or another vessel.

However, these options can get the foliage of plants too wet. If the leaves can’t dry in crowded spaces, it can lead to multiple diseases.

Water should ideally go close to the roots and directly into the soil.

One possible way to work around this is to fill a large bucket of water and use a smaller cup or container to pour. This method allows for close and precise application of the water.

By filling a bucket first, you can regularly use a measured amount of water for your entire garden. A set portion can help keep the plants happy and conserves water usage.

When watering the square-foot garden by hand, you can monitor the water usage of each plant. It will be easy to adjust according to the individual need of the crop.

Plus, hand-watering can give you time to watch your plant’s health. It’s good practice to watch out for signs of pests or diseases during daily watering.

As you can imagine, this method takes the most time. It can be tedious and may not be practical for everyone’s schedule.

Of course, if preferred, hand-watering with a watering can is still an option. The only precaution is to avoid getting the leaves wet when possible.

Check out: Square Foot Gardening Rosemary [Growing Tips]


Next, many will be familiar with the traditional method of hose-watering. In the most basic form, take a standard garden hose to your garden to spray it down.

But indiscriminately spraying your garden can lead to the plants getting too wet. Wet leaves and foliage can lead to root and leaf diseases.

With a standard hose, you should be able to apply the water gently by using a low-flow setting. Try to aim at the base of plants and avoid any that don’t need the extra water.

Before watering the plants, test the temperature of the water. This step is crucial in the summer when water lying in the hoses can get hot.

This method can be a bit labor-intensive. To hose-water a square-foot garden, you’ll have to move the hose throughout the area. And you may have to bend down to avoid the leaves.

There are a few ways to help make hose watering easier. You can buy multiple different hose attachments.

First, you can purchase a hose wand to extend your hose. The wand allows more accurate watering without bending over.

Additionally, multiple types of hose heads can help. Try finding a spray pattern option that lets out a gentle flow of fine drops.

Hose water breakers are an ideal option and are often in gardening stores.

To help conserve water and regulate how much you give your plants, you may also invest in a hose meter.

Ultimately, hose-watering can be only slightly less time-consuming than hand-watering. It still requires you to carefully direct the water and carry a heavy load around your garden.

Have a look: Marigold Square Foot Gardening [3 Easy Steps to Plant]

Soaker Hoses

Soaker hoses are an intriguing option that doesn’t fit the irrigation or hose category. These hoses are a mix of each that many find ideal, and they can be relatively cheap for beginners.

Appearance-wise, a soaker hose will look similar to any other garden hose. However, the outer coating has many small holes.

Once the hose is attached to a water source, water will begin to seep from these holes.

This method is known as drip watering because a small, gentle amount of water is released directly into the soil.

All you need to do is run the hose around your plants where you like. Adjust the pressure by adjusting how far you open the spigot.

This method can be excellent because it delivers water directly to the soil and roots. The hose can only reach ground level, so you don’t have to worry about wet foliage.

It’s also super easy to set up and use.

One potential issue is that you can’t customize how much water each plant receives. This aspect can be vital if you have different types of plants to water in a square-foot garden.

The hose delivers a uniform amount of water along the entire length, so you’ll have to move it away from plants that don’t need water.

And while it isn’t spraying tons of water, it isn’t the most exact for saving water.

But you can still try the soaker hose method and may not find issues. If you have an old garden hose, you can easily attempt to create your soaker hose.

Just drill 1/4-inch holes along the hose and add a hose cap. It will spray slightly more water than a store-bought soaker hose, but adjust the pressure with the tap.

Either way, soaker hoses can be a fun option to try that is low-cost and convenient.

Check Post: Square Foot Gardening Kohlrabi [6 Tips to Grow]

Irrigation Systems

Irrigation systems are options that can allow for automatic watering. They can be significantly better than soaker hoses because they allow tailored watering.

There are a few different options for irrigation systems available.

Drip irrigation systems are similar to soaker hoses by allowing small holes to leak water into the soil. They’re usually on a rigid material, so you’ll lay it over the garden like a grid.

Again, your plants will benefit from water that is in the soil and doesn’t disturb the leaves.

You can also find micro-jet irrigation, which is closer to a sprinkler system. Small valves will spray water wherever you place them, and you can push them in to change the direction.

Micro-jet irrigation may lead to your plants getting wetter than drip irrigation systems, but some might find it a better fit.

Once you install an irrigation system, you should be able to customize the sections to fit your garden. You can turn off areas for plants that need less water than others.

The irrigation method will also use a set amount of water, keeping costs low.

Plus, it’s easy to add a timer to an irrigation system. Timers can make the entire process of watering a square-foot garden pretty hands-off.

Ensure you still watch for signs of over or underwatering from your plants. While plants appreciate a regular water schedule, the timer can easily cause issues if left unchecked.

Read: Square Foot Gardening Herbs [Best Tips to Grow]

Homemade Grid Systems

Finally, you can create a homemade grid irrigation system for watering a square foot garden.

This method will create something similar to a drip irrigation system and can be simple at home.

To create this at home, you’ll need:

  • A drill
  • 1/4-inch drill bits
  • 3/4-inch Schedule 40 PVC pipe
  • Various PVC fittings
  • PVC corner fitting for hose

Then, measure out your square foot garden. Imagine your plants are inside of it within a grid. Measure out these lines and cut the PVC pipe to size.

Next, figure out where you’ll be adding the PVC fittings. You’ll need couplings, end plugs, elbows, and three-sided tees to assemble the grid.

Once you know where the pipes will attach, estimate where you’ll need to drill the holes. Drill these out carefully and try to remove excess plastic shavings.

Finally, assemble the entire grid and try adding water. One end of your system should have a fitting that allows a garden hose to connect directly.

Adjust the water pressure by opening or closing your spigot.

Creating your irrigation system can be a rewarding project, and it allows for the ideal form of drip watering close to the roots.

You can further customize the system by adding things like valves or timers. These upgrades allow you to turn off sections to limit overwatering or be more hands-off with your garden.

Overall, this project is easy for most beginners to construct.

How Often Should You Water a Square Foot Garden?

How often to water a square foot garden depends on local conditions and the type of plant. But there are a few general recommendations.

For instance, the time of day you water your plants can significantly impact their health. What time of day you choose can also influence the method of watering.

Watering in the morning is typically ideal. When you water in the morning, this allows ample time for any wet foliage to dry.

Morning watering makes hose and hand-watering options much more practical. You don’t have to be as concerned about getting some water on the plants, but still, try to avoid soaking them.

Avoid night watering if you usually get the foliage wet. Everything will stay damp throughout the night and leading to a high disease risk.

If you prefer irrigation systems that are low to the ground and don’t want to risk wetting the leaves, you can water them at any time of day.

Generally, it’s recommended not to water at midday, no matter the method. The high temperatures and winds can lead to the water evaporating before the plant can fully absorb it.

In addition to the time of day you choose to water, how often you water your plants depends on local conditions. Let’s take California and Florida, for example.

People living in dry California will likely need to water their plants daily. In contrast, someone in Florida may only need to water once weekly.

You can pay attention to your local weather conditions and prepare for humidity and the strength of sunlight to impact your garden’s water needs.

Read Post: Square Foot Gardening Ginger [Most 5 Benefits]

How Much Water Do Your Plants Need?

There isn’t an exact answer for how much to water a square foot garden because it depends on the individual plant.

Different plants can have vastly different water needs. Some may need it daily, while others can go multiple weeks between waterings.

Spend time researching your plants before choosing them. Then, you can plan your garden bed to position those with similar needs near each other.

One very general rule is to emulate an inch of rain per week. To do so, calculate the surface area of your garden and multiply it by 0.623 gallons.

Here’s an example of how to calculate your garden’s watering requirements:

Garden Surface AreaWater Per Square FootTotal Water Requirement
1 sq. ft.0.623 gallons0.623 gallons
5 sq. ft.0.623 gallons3.115 gallons
10 sq. ft.0.623 gallons6.23 gallons

This method can give you a rough estimate of how much water you’ll need weekly. But conditions may cause this to fluctuate throughout the year.

The most reliable method is to watch for signs from your plants.

Generally, the first inch or so of soil should be dry before you try to add water. Watering less frequently but in large amounts allows your plants to grow deep root systems.

Some potential signs of underwatering:

  • Dry soil
  • Yellowing leaves
  • Slow growth
  • Dry or brown lower leaves
  • Drooping leaves

Whereas some signs of overwatering include:

  • Wet soil
  • New growths falling
  • Limp leaves or branches
  • Slimy or musty-smelling roots
  • Bland fruit

Other Watering Tips

A few additional watering tips can help keep your garden in prime condition.

First, it’s good to know that new plants need more water than established plants. If you repot a plant, you should always thoroughly soak it.

The plant is still growing and needs plenty of water to create an extensive root system.

If you’re unsure if you’re meeting watering needs, you can try to check your plants around one to two hours after you water them.

Probing the area with a finger, spade, or towel will let you know how deeply water goes. This check can help determine if your watering method reaches the roots sufficiently.

Square Foot Gardening Watering
Square Foot Gardening Watering

Furthermore, you may like some more gardening articles:

Final Thoughts

Watering a square-foot garden doesn’t have to be a hassle, as multiple methods are available to fit everyone’s preferences.

Keep your garden happy and healthy by watering close to the roots and regularly watching for signs of distress from the plants.