Hi

So a while back I posted that I was going to try to grow (ok keep alive ) a Cal outside in Mass. The test was to see if I was successful and if so try this with cold hardy citrus like a Kumquat.

The Cal was planted in a cooler with heater cables (1, 100 watt) and surrounded by 3 buckets of water and covered with several layers of transparent plastic.

The coldest it has gotten this year (including this morning) is 5f, inside my "greenhouse" it is 44f.

I took a peak at the tree which is around a foot tall last week and the leaves were dark green. It looked better than all/most of my inside citrus ( ok this isnt so good).

In the spring I will take a picture and post it. I would have to say so far so good

Frank

Frank, are you protecting the tree all of the time, or only on occasion as the weathers dictates? I don't remember the location, is the tree planted near a south facing wall, or some other structure that absorbs the days solar heat?- Millet

HI
Is is always covered. It is on the south side of the house, but not against the house.

Strangely the Cal looks better than most of my inside citrus...

The temps range from 43 to around 75 in the last month.

Again it is heated with a 100 Watt heater cable.

Frank