digitS'
Garden Master
Johnny's Seed has an Overwintering Planting Chart.
I'm fairly sure that it is based on the work of Eliot Coleman. I remember his description of "the Persephone Period," a time when plant growth pretty much comes to an end because of a lack of sunlight. It somewhat disregards temperatures, although Coleman was growing in unheated high tunnels.
The last 10-hour day of sunlight begins this time of no-growth. I have no idea how it might apply in southern climes. Johnny's location has a 5 November date. Out of curiosity, I checked Tyler, Texas. Shoot. The shortest day of the year has 10 hours and 2 minutes
!
http://aa.usno.navy.mil/data/docs/Dur_OneYear.php
My last 10-hour day is the 31st of October. The chart gives you sowing dates based on the number of weeks to seed prior to this last 10-hour day. So, kale is about the middle of September for me.
A limited number of vegetable choices but how could we expect otherwise? There can't be many seedlings that can hunker down and survive northern winters and I'm suspecting that the several varieties of kale could for me, not just the Scotch. Mature Scotch kale does. However, it bolts to seed shortly after the new growing season begins.
Steve
I'm fairly sure that it is based on the work of Eliot Coleman. I remember his description of "the Persephone Period," a time when plant growth pretty much comes to an end because of a lack of sunlight. It somewhat disregards temperatures, although Coleman was growing in unheated high tunnels.
The last 10-hour day of sunlight begins this time of no-growth. I have no idea how it might apply in southern climes. Johnny's location has a 5 November date. Out of curiosity, I checked Tyler, Texas. Shoot. The shortest day of the year has 10 hours and 2 minutes
http://aa.usno.navy.mil/data/docs/Dur_OneYear.php
My last 10-hour day is the 31st of October. The chart gives you sowing dates based on the number of weeks to seed prior to this last 10-hour day. So, kale is about the middle of September for me.
A limited number of vegetable choices but how could we expect otherwise? There can't be many seedlings that can hunker down and survive northern winters and I'm suspecting that the several varieties of kale could for me, not just the Scotch. Mature Scotch kale does. However, it bolts to seed shortly after the new growing season begins.
Steve