The Garden will be Closed Monday, May 27 in Honor of Memorial Day
The BIG Rhododendron Picture presentation by Elaine Sedlack, Horticulturist at the University of California Botanical Garden
Saturday, June 15th10:00 a.m - noon
Inner Radiance Qigong with Linda Burquez, D.M.Q.
10:00 - 11:00 AM
$12 for all Guests
click here for more info
Spotlight Plant
Davidia involucrata
(QBG #1994.294)
Davidia involucrata is endemic to the montane, mixed forests of south-central China at elevations of 1100-2600 m, and can achieve a height of up to 20 m with a broad, pyramidal shape. Deciduous foliage consists of ovate leaves, 8-15 x 7-12 cm, with dentate-serrate margins, dense, silky pubescence, strong venation, and a broadly cordate base. Terminal male flower heads with reddish-purple anthers, ca 2 cm wide and ellipsoid in shape, are borne on 7 cm peduncles and appear April - June. Flowers are subtended by 2-3 larger, white to yellowish-white bracts (or involucral leaves) that are unequally sized, ca 16 and 8 cm in length, oppositely arranged, pendulous, and ovate to oblong-obovate with margins entire (smooth) or serrate. Solitary, ridged, pear-shaped and pendulous green fruits with purple bloom, up to 4 x 2 cm, contain 3-5 seeds apiece and appear in October.
Davidia, also named Dove or Handkerchief Tree, resembles the linden (Tilia) in habit, with its dominant central leader, thick, glabrous branches, leaf shape, and large winter buds. Optimal culture includes moist, well-drained soil in a protected location under part-shade to full sun. The genus is named for the Abbé David who first saw the plant in 1869, near Mupin, Sichuan province. Ernest Wilson collected seed in 1903-4, and considered the species to be "the most interesting and beautiful of all trees of the north-temperate flora" and described the large white bracts as "huge butterflies hovering among the trees".
Founded in 1987, Quarryhill is one of the pre-eminent Asian botanical gardens globally, featuring one of the largest collections of documented, wild-collected Asian plants in the world. It is centrally located for Sonoma, Marin and Napa counties as well as greater Northern California. Quarryhill's core programs include: The garden welcomes visitors and is open year-round. |
| Currently of Interest in the Garden |
| Image |
Plant Name |
Common Name |
Garden Location |
 |
Magnolia obovata |
(Not generally used) |
Creek |
 |
Rhododendron obtusum var. kaempferi |
Kaempferi Azalea |
Dry Creek |
 |
Rhododendron davidsonianum |
North Slope | |
 | Magnolia laevifolia |
(not generally used) |
Fragrant Valley |
 |
Rosa laevigata |
Cherokee Rose |
Foothill |