Rhinanthus major

Greater yellow rattle occurs in bright, open habitats and flourishes in full sun. It can tolerate partial sun but favors direct sunlight for the best growth. This plant, which may be annual or biennial, is known for its sun-loving nature.

Greater yellow rattle can tolerate a wide range of temperatures, but its distribution may still be restricted by various combinations of water and heat conditions. It does best in warm summer climates with sufficient rainfall or watering. Long stretches of cloudy, rainy weather, as well as extended high temperatures, can raise the risk of Greater yellow rattle dying. In winter, providing protection from cold can increase the plant's chances of survival.

After the majority of Greater yellow rattle's blooms have opened to full size, resume fertilizing. When the blooms are at peak production, apply fertilizer every three to four weeks, weather permitting. Then, once Greater yellow rattle begins to produce fewer new blooms, stop fertilizing; there is no need to feed the plant when it can no longer produce additional blooms.