The apricot does well upon the peach, especially on light soils. In the warmer parts of the country peach is much used.
Plum stocks are commonly used at the north, especially if the trees are to be planted in moist or heavy soils. The common plum is generally used, but some of the native plum stocks are now coming into favor, especially in trying climates. The Russian apricots, which are a hardy race of Prunus Armeniaca, are grown in colder climates than the common varieties, and they therefore demand hardy stocks. Any of the native plums make good stocks, but the Marianna is now coming into especial prominence. The myrobolan plum can be used for all apricots, but it is not popular, particularly in severe climates.
The almond, both hard and soft-shelled, is sometimes used for the apricot, but the union is likely to be imperfect and it is not recommended. Almond-rooted trees are best adapted to light soils.
Varieties of apricots are usually budded, in the same way as the peach, although they may be side-grafted at the crown in the nursery row.
Aquartia. See [Solanum].
Aquilegia (Columbine). Ranunculaceæ.
Increased by seeds. They must be sown very thinly, soon after being ripe, in a sandy soil or in pans in a cold-frame. Division of the root is the only way to perpetuate any particular variety with certainty.
Arabis (Wall Cress, Rock Cress). Cruciferæ.
Increased by seeds sown in the border or in pans, in spring. By divisions of the root, and by cuttings placed in a shady border during summer.