Gardening & Landscaping Stack Exchange
Gardening & Landscaping Stack Exchange

Questions tagged [conifers]

Cone bearing, boreal to tropical, largely evergreen trees and shrubs, e.g., Pines, Cedars, Cypresses, Podocarps, Kauri, Firs, Larches, Hemlocks, and Yews.

58 questions
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What is this cone-shaped tree?

This tree is growing in a garden in Johannesburg, South Africa. I'm pretty sure it's evergreen (turns out it's not). I'm not sure whether or not it is indigenous to this area. Click on pictures for full size. UPDATE: I had the opportunity to…
Richard C
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How far will pine tree roots spread?

I have a very tall pine tree in front of my house. I am about to start work digging up my downstairs floor and re-doing it. I'm just wandering if before I start I should look further into the roots of my pine tree, because it is very close to the…
keeley
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Are my Emerald Arborvitaes recoverable?

I bought 31 thujas a couple of months ago and some of them are really struggling. I installed a drip line a week ago, but am wondering if these trees are completely dead. Here are a bunch of pictures. Click on them to see larger views. Is…
Kirk Ouimet
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Keep conifers green in winter

I live in zone 3, central Alberta. Temperatures are well below freezing for 4-6 months of the year, with cold snaps lasting weeks between -20 and -35 C. I have noticed that some conifers go quite yellow in winter. One cause of this: Once water…
Sherwood Botsford
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How far apart should I space Thuja 'Green Giant' evergreen trees?

If I wanted to plant several Thuja plicata x standishii 'Green Giant', how far apart should they be placed, or does it matter? Some evergreens seem to like being planted close together (and growing into each other), some seem to like being planted…
user7420
7
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water use for blue spruce outside natural environment?

I live below the natural range of blue spruce in a hot grassland habitat. How much water does a blue spruce need to thrive in this hot dry landscape?
patrice
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When should I harvest balsam for balsam bags?

I've found plenty of information about when to harvest balsam for making wreaths, but I really don't care about if the needles stay attached - I'm actually interested in if there are specific times when I should harvest so that they maintain their…
Joe
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How much seasonal, internal die-off of Arborvitae is natural and expected?

How much "natural" (i.e., without damaging factors) die-back from the inside of an (otherwise healthy) arborvitae hedge should be expected each year? Stated another way, would an arborvitae in ideal conditions experience any natural, seasonal…
hoc_age
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How fast does a Thuja hedge grow after being burnt?

A fire destroyed about 40cm of the upper part of my Thuja hedge. I have 2 questions: Should I cut off the burnt branches to help regrowth or can I leave it as it is? How long will it take to grow the 40cm back again?
drake035
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What type of conifer is this and is it OK near a house?

I need help identifying this conifer. Also, it is standing really close to a house (about 6-8 feet, some 2 meters). Can its root systems be harmful to the foundation or sewer line (which by the way is close by)? It is about as high as a 2-story…
Viccari
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Caring for noble fir seedlings (Christmas trees)

I am an amateur gardener turned Christmas tree grower. Before I cared for cacti (can't really underwater) and venus flytraps (can't overwater) and felt great that all my plants lived for many years. I now bought a bunch of Christmas tree seedlings…
Thomas E
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Exposed roots in a juniperus bonsai, plus probable fungi problem

A friend of mine has a juniperus bonsai similar to this, but it is not doing well recently. I noticed its top roots are now outside of soil, which I find not good, and I am about to suggest my friend adding a thin layer of a good substrate to cover…
VividD
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What plants are these dwarf coniferes? How can I improve my case?

Can anybody help me to identify these plants ? Or recommend me something similar? I am trying to fix the below. Suggestions are welcome (what you see below was done by the previous owner-this is a last year picture) Update: I am thinking about…
MiniMe
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How can I clone (propagate) a juniper tree from a stem?

I'm experimenting with vegetative reproduction, i.e. getting stems from a thin branch and replanting them after the branch develops some roots. I got a couple of stems from a nice Juniper tree beside my home, and I was wondering if anyone has tried…
Ender
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Why are the leaves turning yellow on these conifers?

I have two kinds of conifers in the front yard. They are in a spot with eastern exposure, but the sunlight is somewhat blocked by a big house on the south side of the yard. They get a lot of shade in the afternoon and evening, and the yellow is…
fiacobelli
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