African marigolds (Tagetes erecta) and French marigolds (Tagetes patula) attract butterflies and hummingbirds, and appreciate a bit of light shade in the afternoon. African marigolds bear double, midsummer blossoms up to 5 inches wide, in whitish, yellow and orange, atop stems about 10 to 48 inches tall. “Crush” is an extra-dwarf cultivar, 10 to 12 inches tall, while “Aurora” enjoys warm, humid weather and “Park’s Whopper” has extra-large flowers. Compact and bushy, French marigolds grow 6 inches to 12 inches tall and produce 2-inch-wide blossoms in red, orange, yellow and bicolor. For hot sites, choose “Safari” and for hot, humid climates, try “Bounty.”