Cockrell Butterfly Center Fall Plant Sale: 9 a.m.-noon, or until sold out, outside the main entrance of the Houston Museum of Natural Science, 5555 Hermann Park Drive; 713-639-4753, hmns.org. Free.
Beginner Bird-watching: with Kelsey Low. 9:30-11:30 a.m. at the Houston Arboretum and Nature Center, 4501 Woodway; 713-681-8433, register at houstonarboretum.org. $20 member, $35 nonmembers; ages 13 and older.
Scarecrow Making Time: 10 a.m. at Enchanted Forest, 10611 FM 2759, Richmond, reservations 281-937-9449; 2 p.m. at Enchanted Gardens, 6420 FM 359, Richmond, reservations 281-341-1206; myenchanted.com. $20.
Hanging Baskets: with Jim Maas & Pat Cordray. 10 a.m. at Maas Nursery, 5511 Todville, Seabrook; 281-474-2488, maasnursery.
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