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Citrus Plants, Dekopon (Shiranui) Orange
(Citrus reticulata 'Shiranui') Your order contains 1 plant. Visitors to the Baker Creek farm are always astonished to see the big, bright, and bumpy orbs of Dekopon (Shiranui) oranges growing in our citrus greenhouses, and they frequently ask if we sell citrus plants. At last, the answer is “yes!” We have a limited quantity of Dekopon plants for sale. They were grown in our live plant greenhouses in Missouri using Flying Dragon citrus (Poncirus trifoliata) as rootstock. Flying Dragon is an excellent rootstock, in that it is very cold hardy and disease and pest resistant. Dekopons are super sweet, juicy, and easy to peel, and they are a coveted treat when they are in season! Each plant is approximately two feet tall. These citrus trees can be grown outdoors in USDA zones 9b to 11. At our Missouri farm, which is in USDA Zone 6b, we grow them in greenhouses.
- Perennial in USDA Zones 9b-11
- 8-12 hours of full to partial sun
- Planting Depth: top of root ball should be level with surrounding soil
- Plant Spacing: 10 to 15 feet
- Ideal Temperature: 55°F to 85°F
- Frost Hardy? No (susceptible to frost damage)
Growing Tips
Dekopon oranges thrive in well-drained, slightly acidic soil with a pH between 5.5 and 6.5. Ensure consistent watering, but avoid waterlogging, as citrus trees are sensitive to root rot. Mulch around the base to help retain moisture and control weeds. Regular feeding with a citrus-specific fertilizer will support vigorous growth and fruit production. Can be grown in containers and overwintered, provided you have a large enough container and enough space to accommodate a 10-foot-tall tree with a 6- to 8-foot-wide circumference. These trees need 8-10 hours a day of sunlight to produce fruit, and exposure to warm days and cool nights produces the best fruit.
When to Grow
Plant Dekopon Orange trees in spring after the danger of frost has passed. In mild climates, fall planting is also suitable. Choose a sunny location with shelter from strong winds for best results. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'
How to Sow and Plant
Dig a hole about twice the size of the plant's root ball. Place the tree in the hole, ensuring that the top of the root ball is level with the surrounding soil. Backfill with a mixture of native soil and compost, packing it gently to remove air pockets. Water thoroughly after planting to settle the soil around the roots, and apply a 2-3 inch layer of mulch around the base, keeping it away from the trunk.
How to Grow
Dekopon oranges need full sun for at least 8 hours per day to produce fruit. Water deeply but infrequently to encourage strong root development and apply citrus-specific fertilizer in the spring. Prune any dead or damaged branches and remove suckers that grow below the graft. Regular monitoring for pests like aphids or scale is important for maintaining healthy plants.
How to Save
- The most common method of propagating Depakon oranges is through grafting.
- Choose a healthy rootstock and graft a bud or shoot from the desired cultivar onto the rootstock.
- This method ensures that the new plant will maintain the characteristics of the parent tree, such as fruit quality and disease resistance.
- Grafting should be done in early spring when the plant is actively growing.
FAQ
How do I protect my Dekopon orange tree from cold weather?
Dekopon oranges are not frost-hardy, so if a cold snap is expected, protect the tree by covering it with a frost cloth or blanket. You can also move potted trees indoors during winter or place them in a sheltered spot, such as a garage, to shield them from freezing temperatures.
How often should I water my Dekopon orange tree?
Water Dekopon orange trees deeply but infrequently, allowing the soil to dry out between watering. During the growing season, water every 7-10 days, increasing frequency during hot, dry spells. In winter, reduce watering to prevent root rot, as the tree is dormant and requires less moisture.
Why is my Dekopon orange tree not producing fruit? If your Dekopon orange tree isn't producing fruit, it may be lacking sufficient sunlight (they need at least 8 hours of full sun). It could also be due to nutrient deficiencies or improper pruning. Make sure the tree is well-fed with a balanced citrus fertilizer and pruned properly to allow sunlight and air to reach the branches.