Word of the Day

Photoperiodism –

is the physiological reaction of plants to the length of day, light, or the length of night, darkness.  There are three types of photoperiods or critical lengths for flower production, short day, long day and day-neutral.

Example – spinach – long day

It has a critical day length of 13 hours.

Today the day length is 12 hours 49 minutes.

Once the day length is 13 hours long expect the spinach in your garden to bolt and become bitter.

http://extension.oregonstate.edu/gardening/what-are-short-day-and-long-day-plants

2017

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