US Plant Patent PP18369
Cascade
Nectarine tree named: ‘Cascade’
PUBLIC DOMAIN
Patent expired August 14, 2026. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on August 9, 2026. This patent earned 5 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP18369
- Filed
- August 9, 2006
- Granted
- December 25, 2007
- Expires
- August 14, 2026
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
Abstract
A new and distinct variety of nectarine tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Nemaguard’ Rootstock (non-patented), grown on Handford sandy loam soil with Storie Index rating 95, in USDA Hardiness Zone 9, near Modesto, Calif., with standard commercial fruit growing practices, such as pruning, thinning, spraying, irrigation and fertilization. Its novelty consist of the following combination of desirable features: 1. Fruit with a mild, sweet, sub-acid flavor. 2. Vigorous, upright tree growth. 3. Heavy and regular production of fruit. 4. Fruit with firm flesh, good handling and storage quality. 5. Fruit with a high degree of attractive red skin color.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of nectarine tree, substantially as illustrated and described, characterized by its large size, vigorous, upright growth and being a productive and regular bearer of large, yellow flesh, freestone fruit, having a mild, sweet, sub-acid flavor with excellent eating quality; the fruit is further characterized by its attractive red skin color, having firm flesh with good shipping and storage quality and in comparison to the fruit of its proprietary maternal parent (32RB351), the new variety has flesh with a mild, sweet, sub-acid flavor compared to acidic type flesh and is approximately 5 days later in maturity.
Read the full patent: US Plant Patent PP18369 in full — the complete specification, every figure, and the file history.