mazzard cherry flowers

Sweetheart Cherry Planting, Care, & Propagation Guide.

Welcome to the world of cherry tree cultivation! If you’re a fan of sweet, juicy cherries, then the Sweetheart Cherry tree (Prunus avium ‘Sweetheart’) is a must-have addition to your garden. Known for its exceptional flavor and stunning appearance, the Sweetheart Cherry tree is a popular choice among both amateur and experienced gardeners.

With its vigorous growth, high productivity, and resistance to diseases, this variety is a reliable and rewarding addition to any orchard or backyard. In this article, we will delve into the world of growing Sweetheart Cherry trees, providing you with all the information you need to successfully cultivate and care for these delightful trees. So, let’s get started on your journey to growing your very own Sweetheart Cherries!

What is a Sweetheart Cherry?

Sweetheart Cherry is a popular variety of cherry tree known for its exceptional taste and attractive appearance. It is a self-fertile tree, meaning it can produce fruit without the need for cross-pollination from another cherry tree. The cherries are medium to large in size, with a deep red color and a sweet, juicy flavor. The fruit has a firm texture and is perfect for eating fresh or using in various culinary applications, such as desserts, jams, and preserves.

Sweetheart Cherry trees are relatively easy to grow and are known for their high productivity. They typically bloom in early spring, producing beautiful clusters of white flowers that add ornamental value to the garden. The tree itself has an upright growth habit and can reach a height of around 15 to 20 feet. Sweetheart Cherries are a delightful addition to any home orchard or garden, providing both aesthetic beauty and delicious fruit.

What do Sweetheart Cherry taste like?

Sweetheart cherries are known for their exceptional flavor profile. They have a sweet and juicy taste with a hint of tartness, making them a delightful treat for cherry lovers. The flavor is often described as rich and complex, with notes of cherry jam, blackberries, and a touch of vanilla. The sweetness of Sweetheart cherries is well-balanced, not overpowering, and the tartness adds a pleasant tangy twist to the overall taste.

When fully ripe, these cherries have a luscious, melt-in-your-mouth texture that is incredibly satisfying. Overall, Sweetheart cherries offer a delectable combination of sweetness, tartness, and juiciness that make them a highly sought-after variety among cherry enthusiasts.

How to start Sweetheart Cherry from seed

Starting Sweetheart Cherry trees can be done through either grafting or growing them from seeds. Grafting is the preferred method as it ensures the tree will produce the desired Sweetheart cherries. However, if you choose to grow them from seeds, keep in mind that the resulting tree may not have the same characteristics as the parent tree.

Here is a step-by-step guide on starting Sweetheart Cherry trees:

  1. Choosing the right location: Sweetheart Cherry trees require full sun exposure, so select a location in your garden that receives at least 6-8 hours of direct sunlight daily. The soil should be well-draining and rich in organic matter.
  2. Obtaining graft stock or seeds: If you opt for grafting, purchase Sweetheart Cherry graft stock from a reputable nursery or garden center. If you choose to grow from seeds, you can either purchase them or collect them from ripe Sweetheart cherries.
  3. Grafting (optional): If you have chosen to graft, follow these steps:
    a. Select a healthy rootstock that is compatible with Sweetheart Cherry, such as a Mazzard or Colt cherry rootstock.
    b. Make a clean, slanted cut on the rootstock, about 2-3 inches above the soil line.
    c. Make a matching slanted cut on the Sweetheart Cherry graft stock, ensuring it has at least three buds.
    d. Join the two cuts together, aligning the cambium layers (the green layer just beneath the bark).
    e. Secure the graft union with grafting tape or a grafting clip.
    f. Protect the graft union with grafting wax or a grafting compound.
    g. Keep the grafted tree in a sheltered location and monitor it for successful grafting.
  4. Planting seeds (alternative to grafting):
    a. If using purchased seeds, follow the instructions on the packet for any specific pre-treatment requirements.
    b. If collecting seeds from cherries, remove the seeds and wash off any remaining fruit pulp.
    c. Place the seeds in a damp paper towel and seal them in a plastic bag.
    d. Refrigerate the bag for 8-10 weeks to simulate winter conditions and break seed dormancy.
    e. After the cold stratification period, sow the seeds in individual pots filled with well-draining potting soil.
    f. Plant the seeds at a depth of 1 inch and water thoroughly.
    g. Place the pots in a warm location with indirect sunlight.
    h. Keep the soil consistently moist but not waterlogged.
    i. Germination can take anywhere from 2-8 weeks. Once the seedlings have developed a few sets of true leaves, they can be transplanted outdoors.
  5. Care and maintenance:
    a. Water the young trees regularly, especially during dry spells, to keep the soil evenly moist.
    b. Mulch around the base of the tree to conserve moisture and suppress weed growth.
    c. Fertilize the tree in early spring with a balanced fruit tree fertilizer according to the package instructions.
    d. Prune the tree during the dormant season to shape it and remove any dead or diseased branches.
    e. Protect the tree from pests and diseases by monitoring regularly and taking appropriate measures such as applying organic insecticides or fungicides if necessary.
    f. Harvest the cherries when they are fully ripe, usually in late spring or early summer, depending on your climate.

Remember, growing cherry trees requires patience and care. It may take a few years for your Sweetheart Cherry tree to reach maturity and start producing a bountiful harvest.

When to plant Sweetheart Cherry outdoors

The ideal time to plant Sweetheart Cherry trees is in late winter or early spring, before the tree starts to break dormancy. This is typically between late February and early April, depending on your specific climate and region. Planting during this time allows the tree to establish its root system before the onset of hot summer temperatures.

Growing & care guide Sweetheart Cherry

Sweetheart Cherry trees are a popular choice among gardeners for their delicious fruit and beautiful blossoms. To ensure the health and productivity of your Sweetheart Cherry tree, it is important to follow some best practices for caring for it. Here are some guidelines to help you achieve success:

  1. Planting: Choose a location that receives full sun for at least 6 to 8 hours a day. Sweetheart Cherry trees prefer well-drained soil with a pH level between 6.0 and 7.5. Before planting, prepare the soil by incorporating organic matter such as compost or well-rotted manure. Dig a hole slightly larger than the root ball and place the tree in the hole, making sure the bud union (the swollen area where the tree was grafted onto the rootstock) is above the soil level. Backfill the hole with soil, firming it gently around the roots.
  2. Watering: Sweetheart Cherry trees require regular watering, especially during dry spells. Water deeply, ensuring that the soil is moist but not waterlogged. A good rule of thumb is to provide about 1 inch of water per week, either through rainfall or irrigation. Mulching around the base of the tree with organic materials like wood chips or straw can help retain moisture and suppress weed growth.
  3. Pruning: Pruning is essential for maintaining the shape, health, and productivity of your Sweetheart Cherry tree. Perform pruning during the dormant season, preferably in late winter or early spring before new growth begins. Remove any dead, damaged, or diseased branches, as well as any suckers or water sprouts that emerge from the base of the tree. Thin out crowded branches to improve air circulation and light penetration. Prune to create an open center or modified central leader shape, allowing sunlight to reach all parts of the tree.
  4. Fertilizing: Sweetheart Cherry trees benefit from regular fertilization to promote healthy growth and fruit production. Apply a balanced fertilizer, such as a 10-10-10 or 14-14-14 formulation, in early spring before new growth starts. Follow the manufacturer’s instructions for application rates. Avoid over-fertilizing, as it can lead to excessive vegetative growth at the expense of fruit production.
  5. Pest and Disease Control: Sweetheart Cherry trees are susceptible to various pests and diseases, including aphids, cherry fruit flies, and fungal infections like brown rot and powdery mildew. Monitor your tree regularly for signs of infestation or disease. Use organic pest control methods whenever possible, such as introducing beneficial insects or using insecticidal soaps. Prune and remove any infected or damaged branches promptly to prevent the spread of diseases.
  6. Harvesting: Sweetheart Cherries are typically ready for harvest in early to mid-summer, depending on your climate. The cherries should be firm, plump, and have a deep red color. Gently twist or cut the cherries from the tree, being careful not to damage the stems or branches. Harvest regularly to prevent overripening or attracting pests.

By following these best practices, you can ensure the health and productivity of your Sweetheart Cherry tree. Remember to provide proper care, including regular watering, pruning, fertilizing, and pest control, to enjoy a bountiful harvest of delicious cherries for years to come.

Harvesting guide for Sweetheart Cherry

Sweetheart cherry trees are known for their delicious and juicy fruits. To ensure a successful harvest, it’s important to understand the right time to pick the cherries and the proper technique to do so. Here’s a guide on when and how to harvest Sweetheart cherries:

  1. Timing: Sweetheart cherries typically ripen in late spring or early summer, depending on your location and climate. The fruit will change color from green to a deep, dark red when fully ripe. It’s essential to monitor the cherries closely during this period to avoid picking them too early or too late.
  2. Checking for ripeness: Gently squeeze a few cherries to assess their firmness. Ripe Sweetheart cherries should be plump, firm, and slightly soft to the touch. They should also have a sweet aroma. Taste-testing a cherry can also help determine if they are ready for harvest.
  3. Harvesting technique: When picking Sweetheart cherries, it’s best to use a pair of sharp pruning shears or scissors. This method helps prevent any damage to the tree or the fruit. Hold the cherry stem between your fingers and carefully cut it just above the fruit, leaving a short stem attached. Avoid pulling or twisting the cherries, as this can damage the tree or cause the fruit to split.
  4. Harvesting process: Start by harvesting the cherries that are easily reachable from the ground. As you progress, use a ladder or step stool to reach higher branches. Take care not to overload yourself with too many cherries at once, as they are delicate and can bruise easily. It’s also a good practice to place the harvested cherries gently into a container or basket to avoid any unnecessary damage.
  5. Post-harvest care: Once you’ve finished harvesting, it’s important to handle the cherries with care. Avoid exposing them to direct sunlight for extended periods, as this can cause them to spoil quickly. Keep the cherries in a cool, shaded area and refrigerate them as soon as possible to maintain their freshness and flavor.

Remember, proper timing and gentle handling are crucial for a successful Sweetheart cherry harvest. By following these guidelines, you can enjoy the sweet rewards of your cherry tree.

Cody Medina
Small Scale Farmer
Hi there! I'm Cody, a staff writer here at The Garden Magazine and a small-scale farmer living in Oregon. I've been gardening most of my life and now live on a quarter-acre farmstead with chickens, ducks, and a big garden.