Hi,
I live in woodland hills in the southern california region. I have a couple of pre bonsai, I started a couple of months back. I notices the the tips of some of the spiky leaves on my picea abies is turning brown. Is that a problem and should I do some thing for it? Could it be the weather as it gets cold here at night in winter. Another thing I wanted to ask is how often to water it. I have been doing watering when it is almost dry, but not too dry. The only issue is that as it is winter the plants seems to be absorbing much less water and my watering frequency has decreased.