Place a 10- to 15-gallon pot on a flood tray near a very sunny window or outdoors in full sun. The pot should have up to six drainage holes in a circle around the bottom. Pui-sha-sin apricots love full sun and moist, well-drained soils.
Fill the bottom one-third of the pot with gravel about the size of a nickel. This helps the soil drain and keeps the Chinese apricots from developing wet feet. Place about 4 inches of mature compost on top of the gravel.
Gently set the Chinese apricot sapling upright in the container. Scoop loam soil over and around the roots, pressing it down before adding more. Pressed soil helps the tree remain upright and root properly.
Water the sapling with tepid, distilled water until it trickles into the flood tray.
Suck the water out of the flood tray with a turkey baster; don't leave water standing in the flood tray.
Water the sapling again, immediately, until water trickles back into the flood tray. This ensures the soil is fully saturated and seated around the sapling's roots. Empty the flood tray again.
Water the sapling every week during regular weather and every three days during dry periods or drought.