Loading variety overview…
World of CitrusWorld of CitrusIva Swingle Citrumelo
The Mulberries
https://themulberries.org/product/citrumelo/ (opens in a new tab)
The nursery description identifies IVA Swingle as a Swingle citrumelo seedling selected by citrus breeder Alan Bishop for improved fruit quality. Its claim that this is the best citrumelo it has tasted is the nursery’s subjective assessment, not a standardized taste measurement. The page gives no selection date or location.
Accessed
themulberries · GrowingFruit.org · 2026-08-12
https://growingfruit.org/t/citrus-in-zone-5/3194?page=6 (opens in a new tab)
Post 102 (12 August 2026, 11:41 a.m.) describes Iva Swingle as likely an off-type Swingle citrumelo seedling that sprouted from the rootstock of a commercially grafted citrus tree and escaped initial removal of off-type seedlings. This is the poster’s proposed origin, not a documented controlled cross or genetic test; the pollen parent is not reported.
Accessed
The Mulberries
https://themulberries.org/wp-content/uploads/2026/01/IVA-Swingle-Citrumelo.png (opens in a new tab)
The printed scorecard names Iva Swingle Citrumelo and matches the video's Iva/Bishop fruit review, including 250 g and 12° Brix. Treat it as the companion scorecard for that sample, not an independent fruit observation. It prints pH 3.1; the video separately gives a provisional strip estimate of ≤3. The card's sensory score digits are overall preference marks and are not intensity categories.
Accessed
The Mulberries · The Mulberries · 2024-12-05
https://www.youtube.com/watch?v=AIJXTR71wTA (opens in a new tab)
Summary from transcript: The video description identifies the Bishop sample as Iva Swingle; the presenter supplies specimen, tasting and measurement context in the timestamped captions. The exact Iva tree location is unstated; South Carolina in the narration refers to a separate standard Swingle sample. The matching scorecard and TFF post #0 concern the same tasting/sample and are companion evidence, not independent fruit observations.
Accessed
themulberries · GrowingFruit.org · 2026-07-27
https://growingfruit.org/t/swingle-citrumelo-zone-7/81408/10 (opens in a new tab)
Post #10 compares Iva Swingle with parent Swingle, describing Iva as fruitier/better while similarly limited for zest. This is a subjective relative comparison; no taste intensity score is inferred.
Accessed
The Tropical Fruit Forum · 2024-12-06
https://www.tropicalfruitforum.com/index.php?topic=57257.0 (opens in a new tab)
This multi-author thread includes post #0 by Mulberry0126 describing the Bishop fruit later named Iva Swingle; that fruit review links the same tasting documented in the supplied video. Posts #18 and #20 (hardyvermont and Mulberry0126) propose/adopt the Iva name based on a probable Iva, South Carolina origin and a possible surviving rootstock, while noting uncertainty. Post #29 reports one 2026 New Jersey winter observation on Iva grafts: 200+ hours below freezing, one day at 0°F, no protection; the Iva-on-Swingle graft had foliage injury and bark marking but no reported bark splitting or bleaching. The Iva-on-Poncirus graft looked better but was in less direct sun. Post #30 is the nursery author's interpretation of that report, not an independent exposure. Keep fruit tasting and graft winter observations distinct.
Accessed