The Virginia Pine is autotrophic and gets its nutrients from the soil and through photosynthesis! The chloroplasts, which contain chlorophyll,  in the cell walls of the pine needles allow for the gain of energy from the sun.  In photosynthesis, the Virginia Pine uses the energy from the sun, water, and Carbon dioxide, to produce glucose for the plant and to give off oxygen and water back to the environment.

Light Reactions
1) The light from the sun enters the needle and is absorbed by the
    chlorophyll that initiates the synthesis of organic molecules in the
    chloroplast. The chloroplasts are located in the interior tissues of
     the pine needle.
2) Water absorbed through the roots is transported to the pine
    needles through the vascular tissues
3) Light energy is converted to chemical energy in the form of NADPH
   ( source of electrons) and ATP (energy currency of cells).
Calvin Cycle
1) Carbon dioxide enters into the needle, and is added to the organic
    molecules within the chloroplast. (Carbon Fixation)
2) The Carbon dioxide is then reduced to carbohydrates by the
 addition of electrons in NADPH and ATP, which produces glucose (sugar) for the Virginia Pine to use as a food/energy source.

Another major part of the nutrition in the Virginia Pine is their interaction with arbuscular endomycorrhizae. This is a type of fungi that lives in mutualism with plants. This fungi begins to grow toward the roots of the plant, and once they are in contact, the arbuscular endomycorrhizae starts to grow alongside the root's surface. The fungi penetrates the roots with hyphae, between the root cortex and the epidermal layer of tissue in the roots. This fungi helps the plant take up more nutrients from the soil in exchange for nutrients. There is an exchange of phosphorus, carbon, water, and other important nutrients. The Arbuscular endomycorrhizae has also shown to have helped the Virginia Pine and other plants by making toxins to repel herbivores or can also increase the plant's tolerance for heat and drought.