Science · Specimen Trees
Idared Apple
Bright red, firm, tart fruit traditionally valued for keeping and cooking. 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
- Bright red, firm, tart fruit traditionally valued for keeping and cooking.
- Harvest
- Late season. Timing shifts with region and weather.
- Cultivar distinction
- Jonathan × Wagener parentage; fruit softens with prolonged storage.
- 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.
Keep soil evenly supplied during fruit growth without encouraging excessive lush shoots; avoid waterlogging and unnecessary nitrogen. Wet the active root zone, keep the graft union and trunk base clear, and let drainage restore aeration between irrigations.
Problems to watch
- Fire blight in conducive bloom weather
- 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
- Baking and sauce
- Stored fruit
More specimen trees
General agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.