|Short day Poinsettias|
Some flowers habitually bloom in fall, as the days are getting shorter on the way to the shortest day (and the longest night) of all, December 21, the Winter Solstice. Fall-blooming goldenrod and chrysanthemums are famous for this, as are the well-known Christmas cactus and poinsettia. After the Winter Solstice, the days slowly start getting longer again.
|Long day Foxgloves|
Plants respond to night length in direct ways. Photoperiodism is the term used to discuss plant responses to day length, or more accurately, night length. “Long day plants” (like clover and garden pinks) bloom as the days get longer and when the nights are short.
|Short day Chrysanthemum|
The florist industry can control flowering by providing supplemental lighting or sun-shielding darkening covers in greenhouses where night-length-sensitive flowering crops are being grown.
Ask your Crabapple LandscapExperts Rep about any landscape maintenance questions you may have.
Happy New Year!