A new and distinct variety of nectarine tree (Prunus persica) named `Hortarine1` is described. The variety results from selection among a population of open-pollinated seedlings of the peach variety known as `Peacharine` (not patented). The fruit of this new variety has an attractive appearance characterized by yellow skin color with dark red blush, yellow flesh with no anthocyanin present, and intense flavor. The new variety appears suitable for the fresh fruit market and has been named `Hortarine1`.