… of small white flowers appear along the upper stems of this candelabra type cactus native to central and northern Mexico in April every year. The stout upright bluish-green stems are studded with dark colored spines to deter herbivores. …
Type: Garden Guide Plant
… perennial throughout the summer. Chartreuse fruit in the fall continue the display. Native to woodland edges in Japan, this perennial tolerates moderate to full shade in well-drained soils. …
Type: Garden Guide Plant
… This beautiful rambling rose grows up to 15 feet high with full sun to partial shade and moderate moisture conditions. Once a year near mid-summer it produces a …
Type: Garden Guide Plant
… This shrub grows to a height of about 80 inches with full sun to partial shade and moderate moisture conditions. It has white blooms that attract butterflies …
Type: Garden Guide Plant
… monarchs made the journey each fall from the northern plains of the United States and Canada to forested sites north of Mexico City. In western North America, more than a million monarchs made a shorter flight to tree groves on California’s coast. However, monarch numbers have been declining for more than … of monarch groves in California may also be playing a role. In the West, severe drought is likely contributing to reduced monarch populations. These threats are compounded by climate …
Type: Blog
… native seeds for the national Seeds of Success (SOS) program this field season. The Garden is an active partner in SOS, led by the U.S. Bureau of Land Management, to collect seeds for conservation, research, and ecosystem restoration. Under contracts with … participate in the Seeds of Success program. The goal is to collect 80,000 viable seeds per site, but the devastating heat and drought in the west has made the job especially challenging. …
Type: Blog
… Historical biogeography has largely focused on the fauna and flora of the region in relation to this event. There is no comprehensive study of how important geological events such as this shaped the diversity of … of macrofungi associated with oaks in Costa Rica, Panama, and Colombia. Oaks are hosts to diverse ectomycorrhizal and saprotrophic fungal communities. The research is exploring the …
Type: Research
… interesting native flora that might produce a collection for the seed bank. It was impossible to make a positive I.D. traveling at 60 m.p.h., but the color of that patch of blue was … ( Hydrastis canadensis )—a once common but now rare plant of Illinois woodlands. Its rarity is attributed to its past popularity as a medicinal plant, which led to its overharvest. Along … further that day, so I made a note of where it was located and planned on returning to the site soon to explore it further. However, I had one question that I needed to answer before this …
Type: Blog
… This summer, when you walk through the Linden Allée, be sure to look UP—and marvel at the incredible trees above you. These 28 GREENSPIRE™ linden trees ( … linden, are actually pruned into a 270-foot-long hedge! Littleleaf lindens are native to Europe, central Russia, and western Asia. They are relatively disease-resistant and … in the winter for shaping, and once in the summer for detail grooming. The design is very uniform and creates a formal allée of trees. The sides are pruned at a slight, almost …
Type: Blog
… I am sure that most of you know what I am referring to when I say “leap year.” “Lep Year”—“lep” being short for Lepidoptera (from the Latin “scaly … the butterflies have gotten the lion’s share of PR. In particular, the monarch butterfly is on nearly everyone’s radar, due to its precarious situation with dwindling wintering grounds and lack of larval food plants—the …
Type: Blog
