Semi Dwarf Harko Nectarine Tree on Citation (Prunus persica var. nucipersica ‘Harko’) is a cold-hardy nectarine variety valued for its smooth, bright red-blushed skin and exceptionally sweet, juicy yellow flesh. With a richly flavored freestone interior, Harko is excellent for fresh eating right off the tree but also perfect for canning, baking, or making preserves. This Canadian-bred variety is noted for its late bloom, which helps avoid frost damage, and its natural resistance to bacterial spot. Grafted onto Citation rootstock, it offers moderate vigor, adaptability to various soils, and reliable harvests for backyard growers and home orchards. Growing Semi Dwarf Harko Nectarine Tree on Citation Light: Requires full sun to achieve the best sweetness, blush, and fruit size. Soil: Prefers fertile, well-draining soil; amend with compost or organic matter to support healthy growth. Water: Water deeply and regularly during the growing and fruiting season. Reduce watering after harvest to prevent excessive vigor. Fertilizer: Feed with a balanced orchard fertilizer in early spring and midsummer to encourage steady growth and productivity. Pollination: Self-fertile; sets fruit without the need for another variety, though multiple stone fruits nearby can enhance yields. Maintenance: Prune in late winter to maintain an open canopy, improve sunlight penetration, and encourage new fruiting wood. Thin fruit in early summer for larger fruit and better flavor. Hardiness: Best in USDA zones 5–9. Harko ripens in mid- to late summer, producing consistent, high-quality crops even in cooler climates. Shipping Info This tree is grafted onto Citation rootstock, selected for its controlled vigor, adaptability to different soils, and ability to yield fruit of excellent size and flavor. Shipped bare-root in a dormancy state, with proper care and planting instructions included.
