Historical clue formulations

• Hemlock relatives — 2026-05-14
• Seasonal tree purchases — 2026-03-17
• Some Christmas trees — 2024-05-26
• Some December purchases — 2022-03-27
• Christmas trees — 2021-09-16
• Some Christmas purchases — 2021-09-10
• Two are named after Douglas and Fraser — 2021-02-28
• Composition of some mountain forests — 2020-08-11
• Some early January curbside pickups — 2019-04-28
• Christmastime purchases — 2018-07-19
• Christmas trees — 2017-12-11
• You may visit a lot of them before Christmas — 2017-03-10
• They may be decorated for the holidays — 2017-02-19
• January detritus — 2016-08-14
• Traditional Christmas purchases — 2011-09-21
• A lot of a Maine forest — 2009-04-16
• Holiday trees — 2007-11-14
• Needle holders — 2007-10-13
• Some evergreens — 2004-12-13
• Some December deliveries — 2004-09-26
• Christmas trees — 2003-08-25
• Cone makers — 2001-10-14
• Mountain covering — 1999-11-25
• Pines — 1999-09-27
• Trees near a tree line — 1999-07-20
• Holiday purchases — 1997-07-20
• Evergreens — 1995-07-17