A Beginner’s Guide to Knowing When to Harvest Potatoes

Potatoes are one of those garden staples that can turn any backyard into a source of fresh, delicious food. If you’re new to growing your own veggies, you might be wondering: when is the best time to harvest potatoes? Knowing this crucial moment can make the difference between a bountiful crop and a disappointing one. Don’t worry; I’m here to break it all down for you! This guide will cover everything you need to know about when to harvest potatoes, so you can enjoy your homegrown spuds at their peak.

Understanding the Potato Growth Cycle

Before we dive into the specifics of harvesting, let’s talk about the growth cycle of potatoes. Understanding this will help you identify the right time to dig up those tubers.

How Potatoes Grow

Potatoes start from seed tubers or seed potatoes, which are small, whole potatoes or pieces of larger potatoes that have “eyes” (the spots from which sprouts emerge). When you plant these, they develop into plants with leafy tops and roots. The real magic happens underground, where the tubers—what we call potatoes—form and grow.

Key Phases of Potato Growth

  1. Sprouting: After planting, the eyes of the seed potatoes sprout and grow into shoots. This is when your potato plants are starting to establish themselves.

  2. Flowering: Once the plants reach a certain height, they start to flower. This is a sign that they are maturing, but it’s not quite time to harvest just yet.

  3. Maturation: After flowering, the plants will start to die back. This is the most significant indicator that your potatoes might be ready for harvest.

When to Harvest Potatoes: Signs to Look For

So, how do you know it’s time to dig up those potatoes? Here are some key signs to look for:

1. The Plants Have Died Back

One of the most reliable indicators that your potatoes are ready to harvest is when the plants begin to die back. The leaves will turn yellow and start to wither. This usually happens a few weeks after the plants flower. Don’t rush to harvest right away; it’s essential to wait until the plant’s foliage is completely dead.

2. The Tubers Have Reached a Good Size

Another sign that it’s time to harvest is when the tubers are of a good size. You can test this by gently digging around one or two plants to check the size of the potatoes. If they’re about the size you want, it’s time to start harvesting.

3. The Skin of the Potatoes is Firm

You can check if the potatoes are ready by rubbing them gently. If the skin feels firm and doesn’t come off easily, the potatoes are ready. If the skin is still thin and easily scrapes off, give them more time.

4. The Weather is Right

Timing is also influenced by the weather. Ideally, you should harvest potatoes when the soil is dry and not too muddy. Wet soil can make harvesting more challenging and might damage your potatoes.

How to Harvest Potatoes

Now that you know when to harvest, let’s go over how to do it correctly to ensure you get the best yield from your plants.

1. Prepare Your Tools

You’ll need a few tools for harvesting potatoes: a garden fork or shovel, a garden rake, and a container for collecting the potatoes. A garden fork is often better than a shovel, as it’s less likely to pierce the potatoes.

2. Gently Dig Around the Plants

Carefully dig around the plants, starting about 6 inches from the base of the plant. You want to avoid damaging the tubers, so take your time and be gentle. If you’re using a garden fork, gently lift the soil and tubers from underneath.

3. Collect the Potatoes

Once you’ve lifted the potatoes out of the ground, sort through them and remove any that are damaged or diseased. You can leave the good ones in the container for now.

4. Clean and Cure the Potatoes

After harvesting, gently brush off any excess dirt but don’t wash the potatoes. Place them in a cool, dark, and well-ventilated area to cure for about two weeks. Curing helps to toughen the skins and improves the flavor of the potatoes.

Different Types of Potatoes and Their Harvest Times

It’s also helpful to know that not all potatoes are the same, and different varieties have different harvest times.

1. Early-Season Potatoes

These potatoes mature quickly, typically within 60-90 days. You can start harvesting them as soon as the plants begin to flower. These are usually smaller and tender.

2. Mid-Season Potatoes

Mid-season varieties take about 90-120 days to mature. Wait until the plants die back before harvesting. These potatoes are generally larger and have a longer storage life.

3. Late-Season Potatoes

Late-season varieties require the most time, around 120-150 days. You’ll want to wait until the foliage has completely died back before harvesting. These potatoes are great for long-term storage.

Storing Your Harvest

After you’ve harvested and cured your potatoes, it’s important to store them properly to keep them fresh.

1. Choose the Right Storage Environment

Store your cured potatoes in a cool, dark, and dry place. A basement, cellar, or a cool pantry works well. Avoid storing them in the refrigerator, as the cold can convert the starches into sugars.

2. Keep Them in a Breathable Container

Use a breathable container like a burlap sack or a cardboard box with ventilation holes. This helps prevent moisture buildup and rotting.

3. Check Regularly

Periodically check your stored potatoes for any signs of spoilage. Remove any potatoes that are starting to rot to prevent the spread of decay to the others.

Common Mistakes to Avoid When Harvesting Potatoes

Even seasoned gardeners can make mistakes. Here are a few common pitfalls to avoid:

1. Harvesting Too Early

One of the biggest mistakes is harvesting too early. Patience is key to getting a good crop. Make sure you follow the signs mentioned earlier to ensure the tubers are fully matured.

2. Using the Wrong Tools

Using a shovel instead of a garden fork can damage the potatoes. Always opt for tools that are designed for delicate digging.

3. Overwatering Before Harvest

Watering the plants heavily right before harvesting can make the soil muddy and difficult to work with. Make sure the soil is dry to make the harvest easier.

Conclusion

And there you have it—a complete beginner’s guide to knowing when to harvest potatoes! By paying attention to the signs of maturity, understanding the growth cycle, and following the proper harvesting and storage techniques, you’ll be well on your way to a successful potato harvest. Remember, growing potatoes is as much about patience as it is about gardening skills. With a little practice and care, you’ll be able to enjoy the fruits of your labor, or in this case, the tubers of your labor!

 

Happy harvesting, and may your garden yield plenty of tasty potatoes!