Pseudotsuga menziesii var. glauca 'Graceful Grace' is an irregular weeping selection of Rocky Mountain Douglas-fir with fluffy, long, blue-green needles. Plants require staking to achieve desired height; from the top of the stake, they will "knuckle over," returning to Earth over time. Despite how it's staked, terminal branches will increase at a rate of 12 inches (30 cm), or more per year.
[Derek Spicer in RHS Encyclopedia of Conifers] a very elegant, narrow weeping tree.
This cultivar originated as a seedling selected in the late 1960s from seedlings at the Arnold Arboretum, Boston, Massachusetts, by Robert Ziegler of York County, Pennsylvania. 'Graceful Grace' is named in honor of Ziegler's wife.