On Friday, September 19, the U.S. Botanic Garden's outdoor National Garden will close early at 5 p.m. It will reopen for regularly scheduled hours on Saturday, September 20 at 10 a.m.
Cymbidium orchids are typically easy to grow and produce an abundance of flowers on each spike. They preform best with indirect filtered sunlight, which produces yellowish/green foliage instead of deep green. They should be kept moist and fertilized with a high nitrogen fertilizer from July through November and a lower nitrogen fertilizer December through June. A slow release fertilizer could be applied in the fall and mid-spring.