May Lotito wrote:
That's very interesting since they are supposed to be identical in genetics. Does the difference in ages affect the wake up time?
I rooted six smaller non-producing twigs trimmed off from the mother Chicago hardy fig. I am going to plant them all, maybe some will come up with different traits to select for.
Age does make a difference I hear. So does hormones within each individual tree that changes based on several factors like branching orientation (Horizontal/Vertical).
I believe the main difference in wakeup time is
mainly a combo of two different main things though.
1)
The cultivar. Some just wait longer than others no matter what conditions. This causes them to have a better cold tolerance rating. Like my Shangri La mulberries both woke up and got zapped. However, my Illinois Everbearing didn't wake up for another month at least... and didn't come close to having a mark. In fact, I think that thing is rated to survive down to zone 5 while my Shangri La mulberries didn't survive their first Winter here on the border of 7B/8A. I will try again though... and make copies to grow out in pots for a few years to harden off in a protected spot before putting them back out there again.
2)
Ground Temperature! As the sun gets higher in the sky in the spring/and the days get longer... the ground warms... and signals things to wake up. The mistake I made with my in-ground Smith was... I had put a ring of chicken wire around it and filled it with leaves to about 2' off of the ground. This insulated the ground and kept it from getting as cold during the Winter... which left the tree in less of a deep sleep. Then when we had the few weeks of warm weather (a few of the days even got up to the mid 90's), I had removed that ring of chicken wire and pulled off the pile of leaves. Which really woke the tree up.
This year I am going to try something different to see if it works. I am just going to put 3" or 4" of bright pine wood flakes (animal bedding from Tractor Supply) around that tree. The cold will be able to seep in during the Winter and the brighter color will keep the soil cooler during the next false Summer. At the moment I have a black nursery fabric that gets hot once it is exposed to the Sun.
This will help the tree to come back from its roots easier too... as it blocked it this past Spring and Almost did it in.