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Cultivar · Almond cultivar

Carmel

Carmel is a soft-shelled California almond cultivar with an elongated kernel, long planted as a major pollinizer for Nonpareil because its bloom overlaps.

Dated referenceLast reviewed: 2026-07-12Updated: 2026-07-12
Illustrative diagram · AgricultureID (original)

Record

Cultivar / variety
Variety of
Almond
Botanical taxon
Prunus dulcis
Type
Cultivar (clonal)
Breeding method
Clonal selection
Origin
California, United States
Registry status
Historical
Registries
  • USDA GRIN (National Plant Germplasm System) · United States · as of 2026-07-12Carmel is documented as an almond (Prunus dulcis) cultivar within the U.S. germplasm system; specific accession identifiers are not linked here.
Adaptation
Mediterranean-type climates with winter chilling; blooms in overlap with Nonpareil, leaving flowers exposed to spring frost. Deep, well-drained loams and sandy loams; intolerant of waterlogging.
Intended use
Kernel production, Pollinizer for Nonpareil-based orchards, Ingredient/manufacturing use

Registry listing or variety protection is jurisdiction- and date-specific and does not by itself indicate current commercial availability, universal cultivation approval, patent status, or a recommendation.

Carmel is a soft-shelled almond cultivar from California, historically one of the most widely planted cultivars in the state after Nonpareil. It is grown both for its own kernels and, very commonly, as a pollinizer whose bloom overlaps that of Nonpareil, helping cross-pollination in mixed orchards.

Like other almond cultivars, Carmel is clonally propagated by grafting and is self-incompatible. Its kernel is typically narrower and more elongated than the flat, broad kernel of Nonpareil, a difference used in grading and marketing.

Identity and origin

Carmel is a single clonally maintained almond cultivar propagated by grafting, so trees grown under the name are the same genetic selection. It originated in California and became one of the state’s major cultivars during the second half of the 20th century, planted widely alongside Nonpareil.

This record treats Carmel as a well-documented heritage cultivar and does not assert an exact release year or a current variety-protection status, both of which vary between sources or are not independently verified here.

Kernel characteristics and orchard role

Carmel produces a soft-shelled nut with a kernel that is generally narrower and more elongated than Nonpareil’s. Its main orchard value, beyond its own kernels, has been as a pollinizer: its bloom overlaps that of Nonpareil, so it supplies compatible pollen during the shared bloom window.

  • Shell: soft, easily hulled
  • Kernel: narrower and more elongated than Nonpareil
  • Orchard role: common pollinizer for Nonpareil-based plantings

Climate and soil adaptation

Carmel is grown in the same Mediterranean-type California conditions as Nonpareil, requiring winter chilling for normal flowering and a dry harvest period. Because its bloom overlaps Nonpareil’s relatively early bloom, its flowers are similarly exposed to spring frost. It performs best on deep, well-drained soils.

Relationships

Evidence-backed connections in the knowledge graph.

Adapted to climate

Adapted to soil

Scope & limitations

Geographic scope: Documented primarily in California, United States. Bloom timing, chilling needs, and kernel quality are specific to Mediterranean-type climates and orchard management.

Climate context: Mediterranean-type tree-crop cultivar requiring winter chill; bloom overlaps Nonpareil and is frost-exposed.

  • Carmel is self-incompatible and depends on compatible pollinizer cultivars; it is itself frequently used as the pollinizer rather than grown in solid blocks.
  • Carmel is among the cultivars in which noninfectious bud failure ("crazy top"), a non-transmissible genetic disorder, has been documented; its expression is influenced by propagation source and heat exposure.
  • Performance traits are specific to California-type Mediterranean climates and management and differ elsewhere.
  • Current formal registry or variety-protection status is not verified here; the cultivar is treated as a historical heritage selection.

Sources

This article draws on the following authoritative sources. See our sources & methodology for how they are selected.

  1. [1]GRIN-Global / National Plant Germplasm System (opens in a new tab)

    USDA Agricultural Research Service (ARS)

    Authoritative

    Cited for: Almond (Prunus dulcis) cultivar and germplasm documentation

    Type:
    Official registry
    Jurisdiction:
    United States / Global
    Accessed:
    2026-07-12
  2. [2]UC Statewide Integrated Pest Management Program (UC IPM) (opens in a new tab)

    University of California Agriculture and Natural Resources (UC ANR)

    High

    Cited for: California almond cultivar guidance, including noninfectious bud failure

    Type:
    University extension service
    Jurisdiction:
    United States (California)
    Accessed:
    2026-07-12

Related topics

Crops