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Harrow Diamond Peach on Nemaguard (Spring 2025)

You are viewing a tree that will ship in Spring 2025. You can also find trees for Spring 2024.

An outstanding, reliable, disease-resistant early peach.

Harrow Diamond is a tree of moderate vigor with an open-spreading habit and wide crotch angles. It is cold hardy and resistant to bacterial spot, brown rot, and perennial canker, making it an excellent choice for the home gardener. It has some susceptibility to peach-leaf curl. This tree is self-fertile and a pollenizer is not required.

This is the first really good peach to ripen at Geneva, NY. About 18 days before Redhaven, this peach is a yellow-fleshed freestone. The fruit is medium sized, blushed bright red over yellow, sweet, and very juicy. Harrow Diamond was the 16th variety developed at the Ontario breeding program by Dr. R. Layne. It was released in 1984, and by 1999 it had become one of the most widely grown commercial varieties in the area.

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Harrow Diamond is a tree of moderate vigor with an open-spreading habit and wide crotch angles. It is cold hardy and resistant to bacterial spot, brown rot, and perennial canker, making it an excellent choice for the home gardener. It has some susceptibility to peach-leaf curl. This tree is self-fertile and a pollenizer is not required.

This is the first really good peach to ripen at Geneva, NY. About 18 days before Redhaven, this peach is a yellow-fleshed freestone. The fruit is medium sized, blushed bright red over yellow, sweet, and very juicy. Harrow Diamond was the 16th variety developed at the Ontario breeding program by Dr. R. Layne. It was released in 1984, and by 1999 it had become one of the most widely grown commercial varieties in the area.


The Fruit

Fruit Type

Category: Peach
Subcategory: Freestone, Cold-Hardy, Disease-Resistant

Fruit Uses & Storage

Uses: fresh eating, jam, baking, canning, freezing
Storage duration: less than one month (approximate, depending on storage conditions)

Fruit Appearance

Skin color: red
Flesh color: yellow

Fruit Origins

Parentage: Redskin x Harbinger
Origin: Harrow, Ontario, Canada
Introduced in: 1984
Introduced by: Dr. R. Layne

The Environment

Calendar & Geography

USDA zones: 4 - 8
Chill hours: 950
Ripening date: Jul 21 (approximate, in New York State) 18 days before Redhaven

Tree Height & Spacing

Rootstock: Nemaguard Rootstock
Rootstock size class: Standard (100% Size)
Tree spacing: See details
Good for wildlife planting? N

Diseases & Pests

Bacterial Spot: Very Resistant
Brown Rot, Blossom Blight, Fruit Rot: Very Resistant
Perennial Canker: Resistant
Peach Leaf Curl: Susceptible






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