Hyslop Crabapple

2026 is our first year growing Hyslop crabapple, and we do not yet have direct experience growing this variety ourselves. All information presented here comes from second-hand sources including historical pomological records, nursery descriptions, and grower reports, and should not be considered experimental or based on our own field observations.

Overview

Hyslop is a historic American heirloom crabapple known for unusually large fruit for a crabapple, strong cold hardiness, heavy productivity, and very high tannin content. It has long been valued for jelly, cider blending, preserves, and pollination, and has historically been planted as both a functional orchard tree and an ornamental due to its abundant bloom and striking fruit.

Origin and history

Hyslop crabapple is an old American heirloom of unknown parentage that originated in the Boston, Massachusetts region sometime prior to 1869, when it was first formally recorded in pomological literature. The tree appears to have arisen as a chance seedling, and no confirmed parentage has ever been identified. Because most apples do not grow true from seed, Hyslop represents a unique genetic individual preserved through grafting.

Historical sources suggest the variety likely originated well before 1850 and was named by or associated with the Hyslop family of Massachusetts during the 19th century. It was documented in early American pomology texts such as Beach’s Apples of New York (1905), which described it as a vigorous, very hardy tree and a reliable cropper producing heavy crops of brilliantly colored fruit.

By the late 1800s it had become widely planted across North America for preserves, cider production, and ornamental use. It remained in continuous cultivation for more than a century and is considered one of the classic large-fruited American crabapples.

No verified records exist identifying its species background or hybrid lineage beyond classification within the genus Malus.

Fruit & Uses

Hyslop produces fruit that is fairly large for a crabapple, typically around 1½ inches in diameter. The fruit is round to slightly oblate and deep crimson to dark red or purplish in color, often covered with a heavy bluish bloom and borne in large clusters.

The flesh is firm, yellowish to white, and juicy when first ripe but becomes mealy quickly after harvest. The flavor is strongly acidic, astringent, and high in tannins. It is generally not considered suitable for fresh eating but is highly valued for jelly, pickling, sauce, preserves, and cider blending, where its tannin content contributes structure and acidity.

The fruit ripens from late summer into early fall depending on climate and typically has a short storage life.

Growth Habit

Hyslop is a vigorous, upright to rounded tree with strong structural growth and reliable productivity. Mature trees commonly reach about 15–25 feet tall with a similar spread, though size varies with rootstock and site conditions. The tree produces abundant white to pink-tinged blossoms and is known for heavy fruit set.

Historical descriptions characterize it as a strong grower and dependable bearer, often producing heavy crops biennially or annually under good management. It is considered precocious and capable of early production.

Spacing

We offer Hyslop crabapple on Bud 118 rootstock, which should spaced about 15 feet apart. For tighter plantings, spacing can be reduced to 12 feet apart and for wider spacing in fertile soils or lower-density systems, trees can be spaced up to 18 feet apart.

Pollination

Like almost all Malus, Hyslop is not self-fertile and requires cross-pollination. It is diploid and blooms in the early to mid-season apple bloom window. Compatible pollenizers include Dolgo, Kerr, Carroll, McIntosh, Fred's McIntosh, Trailman, Zestar!, Liberty, Spokane Beauty, and much more.

Cold hardiness

Hyslop is widely described as very hardy and adapted to cold climates, with places such as Pomiferous and Walden Heights listing it as hardy through zone 3. In Montana where significant parts of the state can experience -40F to -50F temps, whether Hyslop can survive these temps remains to be seen. For now, we are listing it as hardy down to -40F/zone 3.

Other Notes

Hyslop is notable for producing fruit significantly larger than most crabapples and for its exceptionally high tannin content, which made it historically important in traditional cider making and preserves.

Early pomological literature describes the tree as vigorous, hardy, and a reliable cropper, often bearing heavily. However, the fruit becomes mealy quickly after harvest and does not store well.

The variety is susceptible to common apple diseases such as apple scab and requires standard orchard management. It has also been valued historically as an ornamental planting due to its abundant spring bloom and heavy clusters of dark red fruit.

Image: Resolution enhanced from a public domain image. The crabapple is unchanged, but some of the surrounding text and numbers may vary.