For questions about trees: selection, planting, care, diagnosis, pruning, etc.

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1answer
94 views

What is this small tree found growing from a wall?

I've found this plant growing in a crack in the wall. I then put it in a pot and is growing fast. Can anyone help me identify it, I live in Buenos Aires, Argentina. This is how it looks now ...
4
votes
1answer
54 views

Does mold on a seed always mean the death of that seed?

I recently germinated some coffee beans (soaked in water until a root appeared), and planted them in sterilized soil. I only lightly covered them in soil (based on this answer), so the tops of the ...
4
votes
1answer
61 views

Will the roots of my Columnar Yew Tree damage a foundation that's only three feet away?

I have a columnar Yew which currently is about 18 - 20 feet tall with a spread of about 6 feet. What is the root system like for these trees and what effect will/can it have on the foundations of the ...
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0answers
55 views

Saving a Tree With Frost Damage

I have a friend who left a Redwood (Sequoiadendron giganteum) sapling out in the cold and snow a few months ago. It's still alive- it has some green needles still- but it's slowly getting browner and ...
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0answers
95 views

How much should I water an avocado plant guided by a moisture meter?

I have a moisture meter that registers readings from 0.0 to 9.9 (driest to wettest). I cannot find a listing for a potted avocado tree. Can you give me info as to what percentage is optimal for the ...