41.   As long as light, temperature, and moisture remain constant, plants grow all year long.

42.   As the plants grow, he puts a wire cage around them to support the stems above the ground.

43.   As the plants grow, you pull in more soil to cover the stems until the trench is completely filled.

44.   As the plants grow, the spears will push through the soil, then develop into stems.

45.   As the plants grow, they form an underground tuber from which the plant will sprout in future years.

46.   As long as the soil is warm and the days are of reasonable length, plants will grow well into November.

47.   Because water plants grow quickly if unrestrained, most people suggest planting them in plastic pots filled with aquatic potting soil, garden soil or sandy loam.

48.   A few plants grew here and there, straight from the sandstone, or so it appeared.

49.   A desert plant will not grow in moss in a basket.

50.   A place where seeds collected from around the world are sown to determine how well plants might grow here.