Princeton Sentry Ginkgo
Princeton Sentry Ginkgo (Ginkgo biloba 'PNI 2720')
Princeton Sentry Ginkgo (Ginkgo biloba 'PNI 2720') is a narrow, columnar cultivar of the ancient ginkgo tree, prized for its upright, fastigiate growth habit, bright green fan-shaped leaves, and vibrant golden-yellow fall color. This male selection is an excellent choice for urban landscapes, streetscapes, and formal gardens where vertical presence and low maintenance are priorities.
Distinctive Features
'PNI 2720' typically grows 40 to 50 feet tall with a narrow spread of 10 to 15 feet, forming a dense, upright column of bright green foliage that turns brilliant yellow in autumn. Being a male cultivar, it produces no fruit, reducing mess and maintenance in public and residential spaces.
Growing Conditions
- Sun Exposure: Full sun to partial shade
- Soil: Adaptable to a variety of well-drained soils
- Water: Moderate; drought tolerant once established
- USDA Hardiness Zones: 4�9
Ideal Uses
- Focal Point: Strong vertical form makes it ideal for narrow sites and formal settings
- Street Tree: Suitable for sidewalks, medians, and urban plantings
- Urban Landscapes: Tolerant of pollution, salt, and compacted soils
- Formal Gardens: Complements structured designs and tree-lined avenues
- Specimen Tree: Adds architectural interest with minimal upkeep
Low Maintenance Care
- Watering: Water regularly until established; minimal watering afterward
- Pruning: Minimal pruning needed; remove dead or crossing branches as necessary
- Fertilizing: Apply balanced fertilizer in early spring if required
- Mulching: Mulch to conserve soil moisture and moderate temperature
- Protection: Highly tolerant of urban stresses and drought
Why Choose Princeton Sentry Ginkgo?
- Upright, Columnar Form: Provides strong vertical structure in tight spaces
- Brilliant Fall Color: Vivid golden-yellow leaves brighten autumn landscapes
- Fruitless Male Cultivar: No messy seeds or fruit to manage
- Urban Tough: Adapts well to pollution, drought, and compacted soils
- Focal Point: A distinctive architectural tree for modern landscapes
Ginkgo biloba 'PNI 2720' (Princeton Sentry) offers a combination of elegance, durability, and seasonal color, making it an excellent choice for urban planners and gardeners seeking a refined shade tree with a strong vertical presence.
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