Here are the Double cultivars that had
20 or more days of flowers
Candlelight Dinner - 25 days
Double Layer - 36 days
Double Talk - 26 days
Heavenly Double Purple Cosmos - 40 days
Lacy Doily - 33 days
Lilylands Melon Sorbet - 26 days
Little Night Jewel - 30 days
Little Party Girl - 29 days
Lovely and Amazing - 32 days
Siloam Double Classic - 31 days
Spacecoast Twice is Nice - 20 days
Candlelight Dinner - 1 plant, (8 fans), 6 inch flowers, 26 inches tall, double, early midseason, dormant, bloomed May 17 to Jun 21, 25 days with flowers in 2025, rebloomed, 5 days with flowers in 2024, 2 days with flowers in 2023, 13 days with flowers in 2022, planted 10-22-19, Breck's
Double Layer - 2 plants (13 fans), 5.5 inch flowers, 20 inches tall, double, midseason, semi-evergreen, bloomed May 23 to Sep 9, rebloomed, 36 days with flowers in 2025, 29 days with flowers in 2024, 24 days with flowers in 2023, 25 days with flowers in 2022, planted 05-20-21, Ellies
Double Talk - 5 inch flowers, 36 inches tall, double, midseason late, semi-evergreen, bloomed May 26 to Jul 12, rebloomed, 26 days with flowers in 2025, planted 03-31-25, HHS
Heavenly Double Purple Cosmos - 1 plant (2 fans), 5.5 inch flowers, 30 inches tall, double, early mid, ​dormant, bloomed Apr 30 to Jul 21, rebloomed, 40 days with flowers in 2025, reblooming, planted 03-31-25, HHS (Bell)
Lacy Doily- 4 plants (52 fans), 3.5 inch flowers, 20 inches tall, double, midseason, evergreen, bloomed May 19 to Jun 23, rebloomed, 33 days with flowers in 2025, 24 days with flowers in 2024, 30 days with flowers in 2023, 32 days with flowers in 2022, a quick grower, planted 02-28-21 & 02-19-20, K.van Bourgondien
Lilylands Melon Sorbet - 3 plants (19 fans), 5 inch flowers, 33 inches tall, double, early midseason, evergreen, bloomed May 3 to Jul 29, rebloomed, 26 days with flowers in 2025,  32 days with flowers in 2024, 28 days with flowers in 2023, 32 days with flowers in 2022, a quick grower, planted 10-15-20, Breck's, planted 07-04-22 - Schreiner's
​Little Night Jewel - 1 plant (2 fans) 2.5 inch flowers, 18 inches tall, double, midseason, semi-evergreen, bloomed May 3 to Jun 27, rebloomed, 30 days with flowers in 2025, planted 03-31-25, HHS (Bell)
Little Party Girl - 1 plant (2 fans), 2.87 inch flowers, 18 inches tall, double, early mid, semi-evergreen, bloomed Apr 18 to Jun 4, rebloomed, 29 days with flowers in 2025, planted 03-31-25, HHS (Bell)
Lovely and Amazing - 1 plant (2 fans), 6 inch flowers, 31 inches tall, double, midseason, semi-evergreen, bloomed Apr 26 to Jul 5, rebloomed, 32 days with flowers in 2025, planted 03-31-25, HHS
Siloam Double Classic - 2 plants (7 fans), 5 inch flowers, 16 inches tall, double, early midseason, dormant, bloomed Apr 19 to Jul 4, rebloomed, 31 days with flowers in 2025, 24 days with flowers in 2024, 9 days with flowers in 2023, 36 days with flowers in 2022, planted 03-09-21, Gilbert Wild
​Spacecoast Twice is Nice - 1 plant (2 fans), 5.5 inch flowers, 22 inches tall, double, early midseason, semi-evergreen, bloomed May 15 to Jul 14, rebloomed, 20 days with flowers in 2025, 31 days with flowers in 2024, 24 days with flowers in 2023, 8 days with flowers in 2022, planted 03-05-22 - Amador Flower Farm