How to Grow Pomegranate Trees in Pots and Containers

Have you ever thought of growing a pomegranate at home? While these unique, aril-filled fruits may seem impossible to produce at home, they’re actually quite easy to grow. However, gardeners in cold climates often remove pomegranates from their plant wish list when they realize they can’t survive cold temperatures.

However, before you assume below-zero temperatures mean you can’t grow these plants at home, note that you can grow them in containers! Planting the trees in pots allows you to move them indoors during the winter to protect them from cold. Plus, containers make moving your pomegranate from one home to the next easy.

Much of the care for potted plants is similar to in-ground pomegranates. However, you also need to be aware of factors like the ideal container size and potting soil, as well as differences in water requirements. Following these steps will help you grow a healthy pomegranate tree in a container.

Select a Large Container

Although pomegranate trees can happily grow in pots, they won’t grow well in small containers. The plants may survive for a year or two, but they’ll experience stunted growth and a lack of flowers. Therefore, it’s important to select a pot that gives the roots room to expand and flourish.

While you may be tempted to choose a smaller container and repot your plant as it grows, it’s better to start with a big container. Repotting is an inherently stressful process, so it’s best to avoid it if you can. Plus, why purchase three different sizes of pots when you can get away with buying just one?

Look for a container that’s at least 10 gallons. The container material isn’t too important, and plastic, terra cotta, and glazed ceramic can all work well. However, before you select a container, make sure the bottom contains drainage holes.

If you live in hardiness zone 7 and below, you should plan on moving your pomegranate to a protected area during the winter. However, this is often easier than it sounds! When you start with a 50-pound ceramic container and fill it with potting mix, your potted pomegranate can easily weigh over a hundred pounds! Choosing a lighter container or placing the pot on wheels can make moving your plant more manageable.

Fill With a Well-Draining Potting Mix

After you’ve found a suitable container, it’s time to fill it with soil. You shouldn’t use native soil since this can lead to issues with drainage. However, you should also stay away from seed-starting mixes and those designed for vegetative houseplants.

Instead, look for a specially formulated potting mix designed for trees and shrubs. These mixes are similar to those that work well for raised beds. Good mixes often contain nutrient-rich compost, peat moss or coco coir, and drainage materials like perlite, sand, or pine bark fines.

Once you have a suitable mix, I recommend pouring it out into a large container and thoroughly mixing it with a shovel or your hands. Store-bought mixes often contain large clumps of peat moss or compost, and a good stir ensures a homogeneous mixture. Slowly add water as you mix until it is slightly moist but not damp.

Add Your Plant to the Container

Fill your container about two-thirds of the way with the potting mix. Remove your pomegranate tree from its current container and gently shake off any loose soil from the plant’s roots. You should also inspect the roots and remove any rotten or discolored portions.

Place the plant in the new container so the top of the plant’s root ball is even with the soil line. Avoid burying it too deep since this can lead to problems with rot and growth.

Once the plant is in the right place, add more fresh potting soil to fill in the remaining empty spaces. Gently compact the soil with your hands to remove any air pockets. Finally, slowly add water until it is moist. If the soil lowers after you add water, add more to ensure there’s an even layer in the container.

Place in a Suitable Location

After your pomegranate tree is tucked into its container, it’s time to place it in a location where it receives the proper amount of light. These plants require at least six hours of daily light, but they prefer much more. If they don’t receive enough light, they may become weak and stunted and/or fail to produce flowers and fruit.

If your plant is outdoors, choose an open area with full sun. Alternatively, you can place the container on the south-facing side of a building, hedge, or fence.

Indoor plants should also receive at least six hours of light, so choose a bright area. Typically, the area next to a south-facing window works well. However, you can also place the potted plant in a sunroom or other room with lots of windows. If you don’t have a bright enough area, use a grow light to provide supplemental lighting.

Water Regularly

You may have heard that pomegranates trees are drought-tolerant, and while this is true, they can’t survive long periods in a container without water. The best way to keep these plants happy is to allow the soil to dry out slightly, but not all the way, between waterings.

When irrigating, it’s important to remember the difference in water needs between potted and in-ground plants. Since the sides of the container are exposed to the air, the soil heats up quicker, and water evaporates faster. Therefore, you’ll need to water your potted plants more often than those growing in the ground.

The frequency you need to water your plants depends on factors including sun exposure, temperature, soil type, and container material. However, a good starting point is to water your potted pomegranate one to two times per week. Checking the soil with your fingers is a good way to determine whether or not you should water your plant more often. When the top three to four inches of soil is dry, you should water again.

When you irrigate, water slowly to thoroughly soak all of the soil. You can water by hand with a hose or watering can, or you can set up drippers on a timer. Try to keep the foliage dry to prevent fungal diseases.

Fertilize Regularly But Sparingly

Pomegranate trees aren’t heavy feeders, so you don’t have to supply them with a large dose of fertilizer to keep them happy in a container. However, if you skip fertilizing entirely, the plants will begin to show signs of nutrient deficiencies. This is especially true with potted plants.

If you use a nutrient-rich potting mix, you shouldn’t have to fertilize your plant in the first year. However, plan to start adding a balanced fertilizer in year two. An appropriate fertilizer will have an equal amount of nitrogen, phosphorus, and potassium, so look for a product with an NPK ratio like 8-8-8 or 10-10-10.

Add the fertilizer to your plant once per year in the late spring or early summer. Most organic fertilizers slowly release their nutrients over time, so a single annual application is enough to keep your plant happy. Avoid applying too much fertilizer since excess nutrients can be just as big of an issue as too few nutrients.

Keep An Eye on the Temperature

Pomegranate plants are more cold-hardy than many people think, but they still can’t tolerate extreme cold. Most pomegranate varieties grow best in zones 8-11 and will become damaged if exposed to temperatures below 10°F (-12°C). Therefore, you should aim to move your plant to a protected area once the temperature begins to drop below freezing.

Fortunately, most pomegranates don’t require many chilling hours to produce fruit. That means you can bring the plants indoors during the fall without worrying about a lack of cold interfering with their fruit production.

Frequently Asked Questions