EVENTS
Fantasy Orchids Greenhouse
Today-Sat: Celebrate new arrivals from the Hawaiian Islands, 9 a.m.-5 p.m. 830 W. Cherry St., Louisville, 303-666-5432
University Park home tour
Sun: Tour five homes and the Chamberlin Observatory to benefit University Park Elementary School, 11 a.m.-5 p.m. $15, $20 day of tour. 303-550-0831,
Gardening help
Tue, Thu & Sat: Colorado master gardeners answer questions noon-4 p.m. Tuesdays, Thursdays and Saturdays through Sept. 30. Denver Botanic Gardens, 1005 York St., 720-865-3575, e-mail: gardeninghelp@botanicgardens.org
CLASSES
Tagawa Gardens
Sat: Learn how to make an herb topiary, 10-11:30 a.m. $14. 7711 S. Parker Road, Aurora, 303-690-4722
Container gardening
Sat: Small growing spaces can be filled with high-impact flower color and tasty harvests of vegetables. Discover how to add beautiful container displays to even the smallest of balconies and other outdoor living spaces. $20. CSU Denver Extension office, 888 E. Iliff Ave. (at South Emerson Street in Harvard Gulch Park). Register at 720-913-5273.
Timberline Gardens
Sun: Discover how to liven up shady areas with colorful shrubs and annuals, 10 a.m-noon. $8. 11700 W. 58th Ave., Arvada, 303-420-4060, timberlinegardens
Compost class
October: The city of Denver and Denver Urban Gardens offer a free composting class. Visit the website for class schedule and to register. DenverGov.org/ Denver Recycles
UPCOMING
Urban Nature
May 9-10: Denver Botantic gardens’ annual plant sale, 10 a.m.-6 p.m. May 9 and 10 a.m.-4 p.m. May 10. 1005 York St., Denver 720-865-3500
Washington Park Home tour
May 10: Tour of five homes to benefit Steele Elementary School, 10 a.m.-4 p.m. $15. 1491 S. Gaylord St., 303-282-5832,
Botanica talks
May 16: Designscape Colorado landscape designers Phil Steinhauer and Scott Johnson do gallery talks on landscape design and Xeriscape, part of Gallery910Arts’ exhibition of floral paintings, ceramics and sculptures. 6:30 p.m. Gallery910Arts, 910 Santa Fe Drive, 303-815-1779
Old Garden Rose sale
May 17: Annual sale features over 400 varieties of roses, 8 a.m.-4 p.m. Assumption Greek Orthodox Cathedral of Denver, 4610 E. Alameda Ave., 303-237-3117
Plant Yourself at RiNo
May 17: Tour of 40 art galleries, studios and creative businesses — and their gardens — in Denver’s River North Art District. 11 a.m.-5 p.m. Find a field guide at rivernorthart.com or 303-308-9345.
Mail information to Garden Calendar, The Denver Post, 101 W. Colfax Ave., Suite 600, Denver, CO 80202, fax 303-954-1679; e-mail living@denverpost.com.



