Top 15 Steps to Boost Blueberry Yield: How to Increase Production, Size, and Quality

The Blueberry is a crown-forming, woody, perennial shrub belonging to the Ericaceae family, which grows for its fruit or berries. Blueberries are easier to grow and maintain with the right conditions. Blueberries grown for high yield, heat and cold tolerance, and better pest resistance are developed for a wide range of persistently hardy areas. Let’s check out the top 15 steps to boost Blueberry yield below.

Steps to Boost Blueberry Yield
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Top 15 steps to boost Blueberry yield

Step 1: Start with the proper soil pH

Blueberries require a highly acidic soil condition (pH level between 4.0 and 5.6) to grow. Low pH soils are essential for success with Blueberries, and the main reason gardeners fail when planting Blueberries is poor soil pH. Blueberries have very low root systems and are one of the few crops that require special soil conditions. Blueberry plants prefer well-drained soil. Plants will grow stronger and produce more fruit when they grow in well-drained, fertile, loam soils with the ability to hold some water.

Step 2: Choose a high-yielding variety

Consider your climate when choosing a variety because Blueberries love a particular chilling time. Choose a plant that suits your environment. Blueberries are partially self-fertilizing, but planting a combination of the same variety allows for better cross-pollination and yields. Different types of plants also have different colors in summer and autumn, which look great. It is also helpful to plant various plants to ensure good pollination and fruit production.

Blueberry varieties are generally grouped into different plant classes: High Bush, Low Bush, Half High, and Rabbiteye. Growers should select low-bush, northern high-bush, or half-high types in cold temperatures.

Step 3: Site selection improves crop growth

Choose a fully sunny location but protected from strong winds. Avoid planting areas close to tall trees or shrubs that may block sunlight or compete for soil moisture and nutrients. Make sure there is good soil drainage in the planting area. You can mix peat moss in your planting hole to keep the soil loose, acidic, and well dried. Blueberries can also be grown in containers with enough sunlight and moisture. 

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Blueberry Plant
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Always apply Blueberries in a sunny place. Blueberries need full sun (6 hours or more of direct sunlight per day) to grow and produce good yields. If they are planted in a shady place, they will grow slowly and produce less fruit. Blueberries require full sunlight throughout the day for maximum yield. 

Step 4: Irrigation will improve fruit quality

Blueberries need adequate water to thrive, either by irrigation or rainfall. They have a fibrous root system, susceptible to drought injury. Fruits contain mostly water, so abundant irrigation during fruit production is essential for optimal yield and fruit quality. During the growing season, adequate watering is also required to grow good twigs and fruit buds for the next crop. Blueberry plants do not have root hairs like a thread.

They are sensitive to soil moisture fluctuations because they do not have hair roots. Deep, low pH mulch preserves water and reduces soil water fluctuations. Water the Blueberry plants during the day. Keep the soil moist but not wet. Give them at least 1 inch per week during the growing season and 4 inches per week during fruit ripening. Water evenly on each side of the plant. When buds begin to sprout in late summer and fruits sprout next summer, insufficient water can cause small berries. Too much water can lead to large fruit. On the other hand, too much water can lead to large fruit. 

Step 5: Drip irrigation for getting large-size fruits

Blueberry plants have a fragile and shallow root system, so the crop is subject to water pressure. On the other hand, these are grown best on well-drained soils and are prone to excess water, so a drip irrigation system is perfect. The unique root system makes it a desirable crop to grow. It requires a low pH level and a unique environment to reach maximum yield.

Drip irrigation delivers fertilizer and nutrients to the root zone as and when needed, maintaining a consistently balanced environment. Enjoy high-yielding and best-quality Blueberries with drip irrigation. Drip irrigation uses 45% less water than micro sprayers and 60% less water because it delivers water directly to plant roots. 

Step 6: Nutrition management for improved crop yield

Healthy Blueberry plants with many nutrients and grow in the soil with a proper pH have good growth and medium to dark green leaves. However, leaves of other colors (light green, yellow, red or pink, or yellow with green veins) indicate a problem with nutrients, soil pH outside the ideal range, root disease, or plant stress. In particular, the leaves of plants lacking N will be older, lighter green or yellow than the more green leaves.

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Blueberry Farming
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The leaves may also be red, and shoot growth may be poor. Blueberry plants cannot access nutrients in the soil when the pH is too high or too low, even when those nutrients are abundant: soil pH and nutrient availability are interrelated. Managing the fertility of Blueberries requires an understanding of nutrient movement. Nutrient requirements are affected by plant age, canopy size, yield, and time of year. Fertilizer use depends on both the method of application and the number of plant nutrients.

Blueberries do not require much nutrition. Therefore, they are more susceptible to over-fertilization and over-nutrition in the soil. Please don’t overdo it. Most nutrition issues are easy to prevent by ensuring your soil has the proper pH. As mentioned above, Blueberries need acidic soil. It is the key to their success. Before fertilizing Blueberries, start testing the soil pH. It is a cheap, easy, and crucial step. Be prepared to re-test the soil pH under your Blueberries every 4 to 5 years. 

Step 7: Weed control around Blueberries will improve crop yield

Weed control is essential. If possible, eliminate weeds before planting. Blueberry plants have shallow roots, so do not hoe or cultivate more than 2 inches depths around the bushes. Pull the weeds out.

Step 8: Pruning for more berries

Blueberry blossoms and bear fruit grow on wood every year, growing in the previous season. The stems become fruitless with age. Annual pruning keeps Blueberries productive and encourages vibrant growth for next year. Prune shrubs in late winter, when Blueberries are dormant, and their large buds are prominent. Cut about 1/4 inch over healthy buds; use sharp bypass printers for crisp, angular cuts. Do not prune for the first 2 to 3 years except removing damaged sticks. Remove greasy fruit buds in the first year to help plant growth and help establish the root system.

Upright Blueberry bushes thicken in the center, causing shading. After the third year, a mature Blueberry plant has 15-18 canes that emerge from the crown. Pruning will control the crop to improve the quality of the fruit. When the bushes have matured after many years, remove the old central canes and prune inward, pointing laterals back to the main cane. Autumn pruning is not recommended, as new shoots may die in the winter. If necessary, dilute inactive fruit buds to obtain smaller but larger berries. 

Step 9: Protect your Blueberries from birds

The most effective way to prevent birds from eating your crop is to set a netting. Apply as soon as the fruit starts to rThen, securely tie around the base of plants to repel rodents. 

Step 10: Take care of your Blueberries

It is an excellent idea to let the Blueberries form well before they bear fruit. Although we usually remove most of the flowers in the first year or from the beginning of the third or fourth year, start pruning your Blueberry plants to avoid over-fruiting, which results in poor fruit growth. Aggressive, annual pruning will encourage healthier, stronger plants and promote growth and berry production. Like many perennial shrubs, remove 1/3 to 1/2 of the wood from your plants each year. Remember that Blueberries are the fruit of the second-year wood. 

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Step 11: Mulching increases crop yield

Mulching is essential for the excellent growth of Blueberries. Blueberries have shallow roots, and mulch protects Blueberry roots from extremes of temperature and moisture. As the mulch melts, it also provides an organic layer where Blueberry roots can grow. Mulch also serves as an integral part of the weed control program in Blueberries. Mixing organic matter, such as pine bark, pine needles, leaves, hay, wood chips, sawdust, or other organic matter, is suitable for soil health.

In Blueberries, it is essential to make sure that the mulch used does not raise the pH of the soil. Acid mulches include pine bark and pine needles. However, hardwood mulch can increase soil pH over time. Do not use commercial compost where lime has been added to the Blueberry mulch in the composting process.

Step 12: Pollination for better production

Blueberries can self-pollinate. However, for best results, use more than one type: two are good, but three are better. Diversity will result in higher fruit yields and larger fruits. Make sure the varieties you choose open simultaneously to ensure cross-pollination between plants. 

Step 13: Pest control

Blueberries are highly susceptible to pests and diseases, such as powdery mildew, mites, Japanese beetles, and thrips. Visible signs of damage may be white, blistered red scales on the buds, skeletonized leaves, or fewer berries. Apply lots of light dust to keep your Blueberries healthy and free from pests and diseases. 

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Blueberry Farm
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Step 14: Tips to maximize Blueberry production

  • Regular maintenance and meeting all the growing needs of shrubs maximize fruit production. Identify and treat any disease, including blossom blight, mold, mildew, and bacterial spots. Look for spots on leaves, waterfalls or falling leaves, the color of leaves and bark, and dying leaves and branches. Immediately remove the affected areas of the plant and treat with systemic fungicide as required in the package instructions. 
  • Remove diseased, damaged, and dead branches with pruning shears. Trim thin or twig limbs, suckers, and one or two of the oldest sticks at the base of the branches. Remove the lower limbs, the branches that receive the most shade, the other limbs, and all but two healthy new sticks. 
  • Water the bushes up to 3 inches per week during flowering and fruit growth. Check the soil regularly and then keep it moist, but not wet. Install a rain gauge near the bush to monitor rainfall and determine how much extra water to supply. 
  • Introduce or attract pollinating insects such as beetles and bees. Plant annuals or perennial flowers near Blueberries and provide a source of water to attract pollen pests that increase Blueberry production. 
  • Plant another Blueberry bush within 6 feet for cross-pollination to increase crop yield. 

Step 15: Tips for harvesting Blueberries

Blueberries are usually ready for harvest between June and August. Most plants will start to produce a small crop by their third year but will not be able to make full by their sixth year. Mature Blueberry bushes yield about eight-quarters of the berries per bush. Increasing your Blueberry crop by applying early, mid, and late-season varieties is possible. The only reliable way to know if the Blueberries are ready to be picked is to taste them. Blueberries are the sweetest if left on the plant for at least a week after turning Blue. Ripe Blueberries will come off the stem quickly. 

When to choose your Blueberries – Blueberries taste better if left to ripen on the bush. Choose berries 3-7 days after turning completely Blue for maximum sweetness. The plant stem must be Blue, not green or red; the Blueberry’s skin looks dull and separates easily. 

Refrigerate your Blueberries – Refrigerate or freeze in a shallow container immediately after harvest. Refrigerated Blueberries are best when used within 3 to 5 days. Blueberries will stain clothing.

Frequently asked questions about Blueberries (FAQ)

Is Epsom salt good for Blueberries? 

Epsom salt provides temporary relief if your Blueberries need magnesium. In deficient soil, apply 1/4 cup Epsom salt 10 inches in diameter around the plant and water well. If the high pH is the real culprit, the extra magnesium in the soil will not help, and the sulfur of the Epsom salt does not affect the pH. 

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Are coffee grounds good for Blueberries? 

Coffee grounds are highly acidic, so they should be reserved for acid-loving plants such as azaleas and Blueberries. In addition, if the soil is already high in nitrogen, extra growth from coffee grounds can stop fruit growth. 

Why are my Blueberries so small? 

Although there are many causes for small berries, including drought and various choices, one common cause is pollination. Bad weather during flowering can stop the bees from flying, which results in very few seeds being produced. The number of seeds is proportional to the size of the berry.

Where is the best place to plant Blueberries? 

Choose a sunny spot with well-drained, well-drained soil free of weeds. Avoid planting near trees, which block out sunlight and absorb soil moisture. Instead, it is best to grow Blueberries in an area where water is readily available so that you can keep their roots moist during the growing season.


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