← Plant Guides

How to Grow Ozark Premier Plum

Wikimedia Commons

Ozark Premier Plum

Prunus americana

tree

Ozark Premier is a native American plum tree known for its hardiness and productive yields of flavorful, medium-sized fruit. It produces fragrant white blossoms in spring and develops deep red to purple fruits suitable for fresh eating, preserves, and jams. This cultivar is prized for its disease resistance and ability to thrive in challenging climates where European plums struggle.

When should you plant Ozark Premier Plum in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Ozark Premier Plum timeline →

Example Ozark Premier Plum timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Ozark Premier Plum

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Ozark Premier Plum

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Ozark Premier Plum dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, minimum 6-8 hours daily for optimal fruiting
💧
Water: Moderate watering during growing season; approximately 1-2 inches per week. Reduce frequency once established. Avoid waterlogging; drench soil deeply but allow to dry between waterings.
📏
Spacing: 240 inches
📅
Days to maturity: 2-3 years to first fruit; 4-5 years to full production
🌱
Planting depth: Plant at same depth as nursery container; graft union should be 4-6 inches above soil

Soil

Type: Well-draining loamy soil with moderate fertility
pH: 6.0-7.0
Amendments:
Compost Aged manure Peat moss for clay soils

Growing Zones

Find your zone →

Thrives in zones 4-8, extremely cold-hardy

4a 4b 5a 5b 6a 6b 7a 7b 8a

Sign up free to see if Ozark Premier Plum grows in your zone — and get a personalized planting timeline.

Get my Ozark Premier Plum timeline →

Growth Stages

1

Establishment (Year 1)

12 months

Young tree focuses on root development and branch formation. New growth is vigorous, with terminal shoots extending 1-3 feet.

Water regularly (1-2 inches weekly). Apply 2-3 inch mulch layer around base, keeping 6 inches clear from trunk. Stake for wind protection if needed. Avoid heavy pruning; remove only dead/crossing branches.

2

Branch Development (Years 1-2)

12-24 months

Tree establishes primary scaffold branches and develops woody framework. Bark becomes darker and rougher as tree matures.

Maintain consistent moisture. Fertilize lightly in early spring with balanced NPK (10-10-10). Prune to establish open center form. Remove narrow crotch angles.

3

Flowering (Years 2-3)

2-3 weeks in spring

Tree produces abundant fragrant white-pink blossoms in spring before leaf-out. Flowers appear on 2-year-old wood and spurs.

Do not prune during flowering. Ensure adequate cross-pollination (plant another American plum if possible). Monitor for late frosts that may damage flowers. Allow unrestricted growth.

4

Fruiting & Development (Years 3-5)

3-4 months (April-July depending on zone)

Small green fruits develop and gradually enlarge. Fruit matures to deep red-purple color, typically 1-1.5 inches in diameter. Sugar content increases as harvest approaches.

Thin fruits if over-productive to prevent branch breakage and ensure larger fruit (space 4-6 inches apart). Water consistently during fruit development. Apply balanced fertilizer in spring. Prune minimally to avoid reducing next year's crop.

5

Maturity & Full Production (Years 5+)

Ongoing

Established tree reaches 15-25 feet height with spreading crown. Produces consistent, abundant harvests annually.

Maintain annual pruning to remove dead wood, crossed branches, and interior deadwood for airflow. Fertilize in early spring. Monitor for pests and diseases. Reduce watering in fall to encourage dormancy.

Companion Planting

Plan your garden →

Plant with:

Another American plum variety for cross-pollination Chokeberry Serviceberry Native flowering understory plants

Avoid planting near:

Fennel Walnut trees (black walnut produces juglone toxin)

Common Pests

  • Hand-pick infested fruit daily; use netting over tree when fruit is developing. Remove and destroy fallen fruit. Organic spinosad spray at petal fall and 2 weeks later.

  • Prune out affected branches (8 inches below knot). Sterilize pruners between cuts. Improve air circulation through open pruning. Apply sulfur fungicide in spring as preventive.

  • Hand-pick beetles in morning. Remove preferred host plants nearby. Use pheromone traps away from trees. Neem oil or spinosad for heavy infestations.

  • Remove mummified fruit and infected twigs. Improve air circulation through pruning. Avoid overhead watering. Apply sulfur fungicide in spring and pre-harvest periods.

  • Strong water spray to dislodge; release ladybugs or lacewings. Insecticidal soap spray. Neem oil in early season.

Uses

🍳

Preserves & Jams

Culinary

Ozark Premier plums are ideal for home preserving due to their balanced sugar and pectin content. The fruit makes excellent jams, jellies, and preserves with natural thickening properties. [source]

🍳

Fresh Eating & Desserts

Culinary

Sweet, juicy fruits are excellent eaten fresh off the tree or baked into pies, cobblers, and pastries. The flavor is rich and balanced with good tartness. [source]

💊

Digestive Aid

Medicinal

Plums are traditionally used to promote digestive health due to their sorbitol and fiber content. Historically used as a gentle laxative remedy. [source]

🦋

Wildlife Food Source

Wildlife

The abundant flowers provide important spring nectar for pollinators, while fallen fruit feeds birds and wildlife throughout summer and fall. [source]

🏠

Ornamental & Shade

Household

Ozark Premier serves as an attractive landscape tree with fragrant spring blossoms and dense summer foliage, providing excellent shade while producing edible fruit. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest when fruit develops full color (deep red-purple) and yields slightly to gentle pressure. Flavor develops fully at tree ripeness. Pick fruits that detach easily with a gentle twist. Harvest typically occurs June-August depending on zone. Collect regularly to encourage continued production and prevent pest and disease issues from fallen fruit.

Fun Facts

  • 🌱 Ozark Premier is derived from Prunus americana, the native plum of North America, making it perfectly adapted to harsh continental climates that would kill European plum varieties.
  • 🌱 This cultivar requires very few chill hours (approximately 500 hours below 45°F) compared to European plums, making it ideal for regions with warm winters or inconsistent cold periods.
  • 🌱 A single mature Ozark Premier plum tree can produce 50-100+ pounds of fruit in a good year, making it one of the most productive fruit trees for home gardeners in cold climates.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Annual Crown Cultivar Full Sun Mulch Pollination
Shop Ozark Premier Plum plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Ozark Premier Plum planting timeline

Tell us your zip code and we'll calculate exactly when to start Ozark Premier Plum seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Ozark Premier Plum timeline →