Gardening and Landscaping Stack Exchange
Gardening and Landscaping Stack Exchange

Questions tagged [pines]

Cone bearing evergreen trees and shrubs, Genus "Pinus", and Pine lumber.

64 questions
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Does a pine needle mulch make your soil acidic?

This article from Colorado State University states that alkaline soils resist change but several years of heavy pine needle applications would create a somewhat more acid soil. This article states Freshly fallen needles, the type that are…
kevinskio
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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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Newly planted pine tree saplings

What are the best ways to care for my new baby loblolly pine trees? Thank you!
D. Stephens
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Disagreeing info on growing black pine from seed

I recently came to possess a bonsai starter kit, and among the contents were some black pine seeds. The booklet included with the kit instructs me to prepare these seeds by soaking them in water for 3-5 days, then putting them on wet tissue and…
Rav Cone
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What is this pine tree with long pendulous needles and vivid purple flowers?

Having looked around the net I think the tree in the photos here is a Western White Pine - certainly the cone seems to suggest that - but the very long pendulous needles and the vivid purple flowers seem somewhat at odds with the other photos I've…
rivimey
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Pinus sylvestris yellowing problem

I'm pretty new to gardening and I recently (~2 weeks ago) got a Pinus sylvestris 'Fastigiata' plant and I noticed that some needles started to yellow. Here are a few pics:- The yellowing is mostly on the internal and lower needles, but there is…
Milan
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Do pine beetles kill healthy pitch pines, or is it safe to plant seedlings to replace trees killed by them?

We need to remove a number of trees that have been killed by some kind of pine beetle - presumably black turpentine beetle - on eastern Long Island. These trees had suffered injury from salt spray during superstorm Sandy. There are wetland…
That Idiot
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What is wrong with these pine trees?

There are a line of pine trees in my development, and two of them seem to have a disease. I was hoping someone could identify what is wrong with them. They seem to both have the same problem (part of the branches are dead and there is something…
AwesomeMarioFan
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Why does my Norfolk Island pine tree have brown needles and drooping branches?

My Norfolk Island pine is not doing so well; the needles are turning brown and the branches are drooping. Why did this happen to my plant, and how can I cure it? Click photos for full size
Kunal Bhatia
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What is the effect of candling pine evergreens?

I recently purchased a dwarf evergreen (a Japanese White Hagoromo and a Japanese Black Pine) and was instructed by the salesman to twist off all of the "candles" at about the halfway point once they have reached an inch or two long. He said this…
glenviewjeff
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Will dead pine needles on top of new grass seed prevent the grass seed from germinating?

I recently removed old roots, weeds and grass from a small area in front of our house. I had some leftover mushroom compost, so I built up some areas to make the entire area level, but now it seems that dead pine needles from a neighbouring tree…
veclempt
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Pine sawfly eradication once and for all

I have a mature Mugo Pine that is looking rather haggard these days due to pine sawfly larvae chowing on it year after year. I first noticed them two summers ago. There were so many of them that I could hear them chewing whenever I was weeding…
Jax
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How Do I Rehabilitate my Norfolk Island Pine?

We have a Norfolk Island Pine that was doing reasonably well...until we moved. Unsurprisingly, being packed up in a wardrobe box and driven across the country in a moving van (this was in December, so also in very cold weather) has not been good for…
Fomite
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How to keep pine trees small

This is a picture inside Montreal's botanical garden at the entrance of the Japanese garden. In this picture we can see 5 small pine like trees along with thyme and rocks. I would like to recreate something inspired from this. How can I keep…
Gilles
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Growing temperate plants indoors

I have grown several (small) trees, native to western Europe, from seed. (Oak, Pine, Chestnut, Walnut, Plum, Maple, Beech, etc). I have had the fortune of having some space in the garden where I could grow them and let them "overwinter" outside;…
Pieter-Jan Cassiman
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