Pollination Info for Superior Plum Trees (Prunus 'Superior')

Superior Plum Trees are self-fertile, but will produce larger and more abundant fruit with cross-pollination from other compatible plum trees. The pollinators should bloom at approximately the same time as the Superior Plum Tree, which usually blooms in mid to late spring.

Compatible pollinators for Superior Plum Trees include:

• Stanley Plum Trees (Prunus 'Stanley')
• Methley Plum Trees (Prunus 'Methley')
• Satsuma Plum Trees (Prunus 'Satsuma')
• Shiro Plum Trees (Prunus 'Shiro')

To ensure successful cross-pollination, plant the Superior Plum Tree and its pollinators within 50-100 feet of each other. Bees and other pollinators will help transfer the pollen between the trees.

Additionally, it is recommended to plant at least two different varieties of plum trees to maximize fruit production and diversity in your harvest.

Superior Plum Trees (Prunus 'Superior') FAQ:

What is a Superior Plum Tree?

A Superior Plum Tree, scientifically known as Prunus 'Superior', is a fruit tree that belongs to the Rosaceae family. Superior plum trees are known for their large, juicy, and sweet fruit that ripens in late summer to early fall.

How tall and wide does a Superior Plum Tree grow?

A Superior Plum Tree can grow up to 18 feet tall and up to 15 feet wide, depending on the growth conditions and pruning methods used.

What are the ideal growing conditions for a Superior Plum Tree?

Superior Plum Trees thrive in well-drained soil with a pH level range of 6.5 to 7.5. They require full sun exposure and regular watering during the growing season. They are hardy to USDA Zones 5-8, which means they can withstand temperatures as low as -20°F/-29°C.

When is the best time to plant a Superior Plum Tree?

The best time to plant a Superior Plum Tree is during the dormant season, which is typically between November and March in most locations.

How long does it take for a Superior Plum Tree to produce fruit?

A Superior Plum Tree can start producing fruit between three to six years after planting, depending on the growing conditions and care it receives.

How do you prune a Superior Plum Tree?

Pruning a Superior Plum Tree involves removing dead, diseased, or damaged wood and thinning out branches to encourage healthy growth and fruit production. It is best to prune a Superior Plum Tree during the dormant season to avoid damage to new growth and fruiting wood.

What are some common pests or diseases that affect Superior Plum Trees?

Superior Plum Trees are susceptible to pests such as Japanese beetles, plum curculio, and aphids. They are also prone to diseases such as brown rot, bacterial spot, and black knot. Proper care and maintenance practices such as regular pruning and sanitation can help prevent and manage pests and diseases.

Planting Superior Plum Trees

• Choose a sunny location with well-draining soil.
• Dig a hole twice as wide and as deep as the root ball of the tree.
• Remove the tree from its container or packaging and gently loosen any tangled roots.
• Place the tree in the hole, making sure it is at the same level as the surrounding soil.
• Backfill the hole with soil and water thoroughly.
• Apply a layer of mulch around the base of the tree to help retain moisture.

Caring for Superior Plum Trees

• Water your tree regularly, especially during the first few years of growth.
• Fertilize the tree in the spring, using a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium.
• Prune the tree during the dormant season to remove any dead or damaged branches.
• Thin out some of the fruit to avoid overcrowding, which can lead to smaller fruit size and diseases.
• Protect your tree from pests such as aphids, Japanese beetles, and plum curculio.
• Harvest your fruit when it is ripe but still firm, usually in late summer or early fall.