Growing Cranberries: How to Grow, Plant and Harvest Cranberries

Garden 9

When I say cranberries, what comes to mind?

Does cranberry sauce come to mind? Thanksgiving? Their beautiful red color? What a great addition they are to your salad?

All of these things come to my mind when cranberries are in your thoughts. To say I’m a fan of cranberries is an understatement. I love their tart flavor and their long shelf life too.

Which is why I’m happy to learn how to grow these wonderful fruits in my garden. Did you assume because they’re commercially grown under water, they couldn’t grow in your garden?

Well, I thought this way too. When I realized the gardening possibilities, I had to share what I’ve learned with you all.

Here’s what you need to know about growing cranberries in your garden:

Cranberry Plant Info:

  • Hardiness Zones: 2, 3, 4, 5, 6, 7, 8
  • Soil: Loamy, sandy, clay,  PH between 4.0 to 5.5, poorly-drained, moist, boggy
  • Sun Exposure: Full sun
  • Planting: Plant in fall from October to early November, in spring from mid-April to end May
  • Spacing: 11 to 12 inches between plants and rows
  • Depth: 2 to 6  inches
  • Best Companions: Azalea, rhododendron, blueberry, lingonberry
  • Worst Companions: Potato, tomato, cucumber
  • Watering: Water constantly to keep the soil always wet
  • Fertilizing: Top dress with balanced fertilizer in spring for the first 3 years
  • Common Problems: Proventuria early leaf spot, botryosphaeria fruit rot, red leaf spot, end rot, phytophthora leaf spot, blackheaded fireworm, cotton ball, cranberry blossom worm, cranberry fruitworm, cranberry tipworm, cranberry weevil, gypsy moth
  • Harvest: 3 to 4 years after planting, when the fruits are red and ripe

Popular Cranberry Varieties

Cranberries look very similar between varieties. However, there are a few differences among them. Here are the variations you should know about and what they’re capable of producing:

1. Stevens

This variety is known for being consistent in the amount produced per plant. They’re low-maintenance plants but are commonly known for producing fruits with less color.

2. GH1

GH1 is known for being a heartier variety. It overwinters well in comparison to other types. The GH1 is also known for producing consistent amounts of fruit over the entire life of the plant, and the fruit is of a uniform color.

3. BG

This variety is known for being a consistent producer and also producing fruits with consistent coloring. If you want to know what to expect from your plants year after year, this could be a good choice for you.

4. Pilgrim King

The Pilgrim King variety is known for producing a more abundant harvest. The harvest isn’t only plentiful, but the fruits are bigger and have consistent coloring too.

5. Valley King

The Valley King variety is known for producing a larger harvest. This is nice because you’re getting more bang for your buck with the increase in production. This variety also produces larger fruits as well.

6. Granite Red

This variety is known for its firm fruit which also lasts longer. The fruits are bigger and are consistent in color as well.

How to Grow Cranberries

Growing cranberries in your garden do have a few tricks to it. If you get the basics right, you should find great success. Here’s what you need to know:

1. How is your Winter?

Cranberries are a perennial vine. They have upward vines which grow to be anywhere from one to six feet. When the vines are green, it means they’re growing, and when they’re brown it means they’ve gone dormant.

From these vines, small shoots sprout. These shoots will flower and from those flowers, the cranberries develop.

These vines have particular needs to produce and thrive. One of the most significant requirements for growing cranberries is being in the right climate.

Cranberries need cold for at least three months out of the year. The temperatures in your area must get to 32-45 degrees Fahrenheit for the plant to become dormant.

If you don’t live in a cold enough climate, cranberries won’t work in your garden.

2. Soil and Water

Cranberries have specific needs as far as soil and water goes. The soil should have a pH of approximately 5. If your soil is in the range of 4.5-5.5, the plants should still be happy.

Though commercial businesses grow cranberries under water, they don’t need to be covered with water.

In fact, the soil you plant the cranberries in should be well-drained to keep it from becoming soggy. If the roots stay too wet, they won’t produce as quickly as they would otherwise.

Be sure to check your water as well. If the water is too alkaline, it can throw the pH off in your soil. Giving cranberries the proper environment to grow in, is vital to their success.

3. Find the Proper Location

Once you know the climate is correct for growing cranberries, and the soil is the right pH, it’s time to pick the proper location.

Cranberries like full sun. When you find the area with full sun and an area which can become the proper pH, you can begin amending the soil.

You’ll do this by adding rotten manure, compost, peat moss, or sand to the area. When the soil is right, you’re ready for the plants.

4. Order Your Seedlings

It’s not a good idea to grow cranberries from seeds. They take up to two years to begin producing fruits. You don’t want to wait any longer when starting out and seeing if cranberries will work well in your location.

For this reason, you should order the seedlings. You’ll need one plant per square foot of the growing space.

Over the years, the plants will become fuller and utilize the entire space. Another way of ordering the proper amount of plants is to know they’ll be planted two to three feet apart.

5. Harden Seedlings Off

When the seedlings or bushes (depending on how big your ordered plants are) arrive, they’ll need to be hardened off.

It’s a good idea to give them time to adjust to their new surroundings. You’ll leave the plants outside (as long as the temperature is over 50 degrees Fahrenheit) and bring it in at night.

As long as the plant still seems healthy at the end of the week, you’re ready to plant.

6. Plant

When you plant your cranberry bushes, be sure to wait until the final spring frost is past. When the coast is clear, dig a hole only as deep as the container the plant arrived in.

Cranberries have shallow roots which only go into the soil approximately half of a foot. If you make the hole too deep, the plant won’t thrive. When in doubt, know the crown of the plant should be level with the surface.

Again, be sure to plant each seedling or bush approximately two to three feet apart. You shouldn’t add fertilizer to the hole before planting.

Place the plant in the hole, cover the roots, and you’re good to go.

7. Raised Beds or Containers

You can plant cranberries in any place they can flourish and will return year after year since they are perennials.

However, raised beds are a good choice because it’s easier to control the quality of the soil. If you only want to grow a few cranberry plants, consider planting them in larger containers.

You’ll follow all the steps above but have the opportunity to add a higher quality potting mix as the base soil.

From there, you can amend the soil as needed. Be sure containers have holes in the bottom to keep the soil well-drained and keep a watchful eye on the pH level.

How to Care for Cranberries

Like any other plant, cranberries need care as well. Follow these basic steps for providing proper care, and your berries should do well. Here’s what you should do to care for your cranberries:

1. Water

When first planting the cranberry plants, you should water them every day for the first two weeks, to help the roots become established.

After the plants are settled, you can reduce watering to every two to three days. The goal is to keep the soil damp, not drenched.

On average, cranberry plants need an inch of water per week. Keep a rain gauge handy to know how much water they get through the rain.

When you know, you can supplement the rest of the water needed in one or two deep watering sessions throughout the week.

2. Weed

Because cranberries have shallow roots, you’ll need to control weeds through the mulch and also by pulling weeds as necessary by hand.

It’s nothing overly complicated. The goal is to keep weeds from taking essential nutrients and necessities, which your cranberries need to survive and produce year after year.

3. Mulch

Mulch is a key ingredient to caring for cranberries. The most crucial time to mulch is when the plants are beginning to go dormant.

The vines should be mulched heavily to protect them over the winter. If you live in a cooler location where snow is prominent, this is a good thing. The snow will provide extra insulation for your vines.

4. Fertilize

Each year as the cranberries begin to awaken, place a balanced fertilizer around each plant to give them a boost.

From there, it’s a good idea to add a slow release fertilizer to them one time per month. If your plants are thriving after a few years, and you feel they don’t need additional fertilizer beyond the one dose in early spring, this is your call.

If you have high-quality soil, they may not need the extra boost every month. You’ll know if your plants need nutrients as they become more established.

5. Add Sand

After the initial planting year, add ½ inch of sand to the base of each plant in early spring. Sand will help cut down on weeds around the plant and also helps to start more running vines.

This leads to a more productive plant, longevity, and a larger harvest for you over the years.

6. Prune

The cranberry plants should be pruned in the early part of spring, but only after the season in which they produced a harvest. Mature plants may often only produce every second year.  The long shoots where the blooms occur needs to be pruned.

However, be sure not to prune the base runners which grow upwards. By pruning, you’re trying to encourage more upward growing vines to form.

Cranberry Problems

Cranberry plants have certain pests and diseases which affects them. The pests and diseases you should watch out for are:

1. White Fly

via planetnatural.com

Kaynak

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