March isn’t always known as the most beautiful month, but in Philly, you can still enjoy the outdoors without stepping outside. Head to Longwood Gardens in Kennett Square for the annual Orchid Extravaganza, where more than 5,000 orchids in all colors, shapes and sizes are on display. The (heated) conservatory holds a towering welcome arch of white blooms and purple and white orbs hang from above. Walk through the different flowers, snap photos and enjoy concerts, talks, tours and kids activities. Check their website for specific dates and programming. On view through March 27. www.longwoodgardens.org. Longwood Gardens, 1001 Longwood Rd., Kennett Square, PA, 610.388.1000.