Science · Specimen Trees
Jonathan Apple
Medium-sized red fruit with a lively tart flavor and useful culinary character. Midseason to mid-late season. Tree size, anchorage and drought response depend strongly on the grafted rootstock; full sun, drainage, compatible pollination and annual crop management are essential.
Profile
- Fruit
- Medium-sized red fruit with a lively tart flavor and useful culinary character.
- Harvest
- Midseason to mid-late season. Timing shifts with region and weather.
- Cultivar distinction
- Historic American cultivar; useful in blends with sweeter apples.
- Pollination
- Plant a compatible cultivar with overlapping bloom; bees transfer pollen.
Water & soil targets
- Moisture (VWC)
- Site-calibrated; varies by soil and rootstock
- Salinity tolerance
- Sensitive to saline irrigation; rootstock affects response, but salt accumulation can reduce growth and fruit quality.
- Drought tolerance
- Limited to moderate; fruiting and dwarf-rootstock trees need reliable moisture.
Optimal root measurement depth
8–18 in
Most absorbing tree roots live in the upper 12–18 inches, out toward the drip line. Typical guidance; confirm with a soil probe on site.
Avoid drought during sizing and keep foliage as dry as practical; irrigation scheduling should reflect soil drainage and the actual rootstock. Wet the active root zone, keep the graft union and trunk base clear, and let drainage restore aeration between irrigations.
Problems to watch
- Powdery mildew on shoots
- Codling moth or locally important fruit insects
- Fire blight, apple scab or cankers according to local pressure
Stress signs
- Persistent leaf wilting or marginal scorch
- Reduced shoot extension and undersized fruit
- Premature leaf or fruit drop
Where you'll find it
- Pies and sauce
- Cider blends
More specimen trees
General agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.