Questions tagged [oak]

Tree or shrub, genus *Quercus* noted for lobed leaves and 'acorn' seeds.

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49 views

The leaves on my huge oak tree are being eaten by caterpillars

If all the leaves on my ancient huge oak tree are eaten by caterpillars, will the tree still survive? What can I do to save it? At this point in time I feel absolutely helpless. Please, if anybody ...
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21 views

Training a spindly oak tree

I have an oak sapling, self seeded (or by a squirrel) about 7 years ago. It is now over 2.5 meters (8 feet). It had a pair of leaders at about 1 meter, one of which was removed last year. In addition ...
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What kind of oak-like tree is this in New York?

There's only one tree of this kind around, and it's growing in a marshy field area. Does anybody know what it is? It looks oak-like but the leaves don't match up exactly with any oak variety I know of....
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176 views

Need to relocate an Oak Sapling growing near roots of larger tree

There is an oak sapling growing about 4ft from the foundations of mine and my neighbour's house so I feel we need to relocate it. The problem is that is seems to be growing right at the base of a ...
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1answer
36 views

Can you “seal” a cut off section of a tree to protect it from rot?

I have an oak tree that had a "Y" starting about 12 feet off the ground that I had one of them removed since it was reaching way over a neighbors property. (It was literally half the tree). Fast-...
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1answer
160 views

Is this oak sapling healthy?

Simple question, really. I am trying to bring on this oak sapling, which self-seeded a year or two ago. This year, the new leaves have just opened up, but they are looking brown on the edges. Is this ...
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1answer
35 views

Can I compost around a mature live oak tree?

I have a mature live oak tree in Florida that is much taller than my two story house. I have a small yard and would like to compost around it if possible. I've read here on stackechange that this can ...
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1answer
191 views

Can I grow an Oak Live Tree in a large container to keep it around 20 ft high?

I’m new here. My partner and I are getting married and we are relandscaping our garden as our wedding gift. He loves Coast Live Oaks (Quercus agrifolia) and it’ll mean a lot to us if we can plant one ...
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1answer
58 views

Can anyone ID this oak that has flaky bark?

This is on Long Island, NY near the water. No acorns are available.
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19 views

Viability of tree seedlings with double tip

This is a somewhat hypothetical question, but: This little Quercus robur seedling was pulled out during a weeding session. Apparently it’s at least two years old and the original tip was cut off at ...
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27 views

Need to relocate oak seedlings in Iowa

For father's day, my two sons gave me sprouted oak seedlings. One seedling is 7 inches tall with four leaves, the other is 5 inches tall with four leaves. The containers are small pots, about six ...
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1answer
462 views

Is my red oak tree dead? Only suckers growing:(

I need help! I got this tree approximately two years ago May 2017 to be exact and it was fluffy lots of leaves!! However, this year it did not grow any new leaves only suckers, can anyone please give ...
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My Cat ate the top and many of the leaves of my Oak Sapling; advise on how to stimulate growth

I have been growing some indoor plants as a project with my son, including a small oak sapling that grew in a planter we had outside during the summer. One of our cats, for reasons unknown, ate the ...
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1answer
102 views

How do I harvest acorns from a Palestinian Oak (Quercus calliprinos) for planting?

I've got one of these growing by my house, and it's full of acorns. Some have fallen, but most are on the tree and are green (starting to turn brown at the end.) I want to grow a bunch of them for a ...
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1answer
135 views

Is this oak powdery mildew? How can I manage it?

I have just bought a new property that has a range of oak trees. Unfortunately, I noticed that some of the young trees in one area have a white discolouration of the leaves. After some searching ...
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Is this oak sick?

I have an oak that presents many ants on its bark, and I feel that its bark looks sick (even though I'm not an expert, so it's just a feeling). Furthermore, there is a big fungus at the trunk's base. ...
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1answer
412 views

Identify brown fungus growing on dead branches of an Escarpment Live Oak

I had a dead branch fall from one of my Escarpment Live Oaks in a storm yesterday. It has these brown mushroom-like growths on it. There are 4 or 5 growths like the one pictured on the 10-foot ...
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Oak Tree Seeding

A year and a half ago, during the last stages of autum, my five year old niece and I were going for a walk in our neighborhood. She began collecting acorns that had fallen on the ground and asked ...
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874 views

Japanese Maple Seedlings Dying For No Apparent Reason

I'm trying to grow Japanese Maples from Seeds. I had over 100 germinate this year and now I think they're all dead. One the seedling reaches an inch plus, it puts out true Japanese maple leaves. After ...
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1k views

What is this fungus/mushroom on my oak tree?

I've got an oak tree. Within the last 2-3 weeks I've observed two growths on the base of the tree that started from nothing to what you see below. They're a fungus or mushroom of some sort. They're ...
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1answer
228 views

Did we somehow accidentally plant an oak tree on our balcony?

My wife had a poinsettia on our balcony that died in a surprise frost while we were away. The empty pot stayed on our balcony for a while, and new sprouts gave her hope that it had managed to survive ...
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1answer
169 views

What's wrong with my Scarlet Oak tree?

My poor Scarlet Oak (Quercus coccinea) tree started getting brown/yellow leaves with holes in them. Any ideas as to what the problem is? It's been really dry and the tree is less than one year old in ...
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1answer
148 views

Powdery mildew on oak (Erysiphe alphitoides?)

I have an oak (Quercus robur) sapling I've grown from seed in a pot (it is 2 years old) and its leaves are exhibiting a powdery white mildew. After some searching online I think it's a case of ...
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1answer
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Are Oak leaves good for making mulch?

I live in southern Arizona and we have four varieties of Oaks here that lose their leaves in the springtime as opposed to the fall. I know one species is called Emory and another the Arizona White. ...
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How can I tell the difference between male and female trees?

How do you know what a male tree looks like from the female? Is it because of the leaves that fall or the ones that have more pollen? Please help me to understand if there is such a thing.
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372 views

Growing bur oak from stored seeds - how to start?

I was given a bag of bur oak seeds that were collected from my region (northeast USA, zone 5) last May (it's been a while). I found them stashed in a wooden drawer in a cool room, in their original ...
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What tree will grow acorns quickly?

I want an acorn tree I do not have to wait till I'm dead to see it produce acorns. I have been disgusted talking with nurseries all day long. I am 56 and I want to have an acorn tree. Below are some I ...
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1answer
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What is this white fungus on my oak tree?

This white material is on my oak tree, and it's appeared within the last month. What is it, how can I treat it, and is it contagious (it's begun to fall from the tall oak tree onto surrounding plants)?...
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737 views

What kind of oak are these acorns from?

Can anyone identify the oak species these acorns come from? Here are some pics of the leaves and bark
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740 views

Is it possible to get this pin oak to grow straight?

Received a pin oak from my uncle a little less than two years ago as a transplant. It's about 9ft tall today. The tree had a noticeable bend to it when when it was transplanted. I tried staking it, ...
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927 views

When to collect acorns for planting?

I would like to try growing some oak trees from acorns. When should I collect acorns for this? Should I pick them as soon as they appear on the tree? Or leave them a while to 'ripen', or change ...
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How can I transplant this large oak tree?

A few streets away, the homeowner said that if I can dig up and move the oak tree pictured below then it is mine. I would love to have this tree in my yard. I'm not sure if you can tell from the ...
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1answer
489 views

How can I grow an in-ground 'bonsai' oak tree?

My question is a bit different because I'm leaving the oak tree in the ground where it started growing about 5 or so years ago. I've been trying to keep it cut back each year to try to make it into ...
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Self seeded oak sprouts, want to safely relocate to see if they will take

I have several self seeded oak sprouts under our pine trees. I know they can't stay there at the roots of the large pines. But want to see if the tree sprouts will grow we have 2 1/2 acres & would ...
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1answer
645 views

What is causing the open hole and damage to this oak tree?

There is a water oak tree in my yard, which is a member of the red oak family. There seems to be some sort of insect burrowing holes into the tree at the darkest spot. Tannins are being washed down ...
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1answer
245 views

What should I do after oak tree removal, before paving?

I recently had a huge oak tree removed. It was ground to a stump. I'm going to pave that area soon. Do I need to do anything to the area before paving? Someone told me to put salt in the soil.
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Suckers on dormant tree

My oak appears to be dormant. I am in Cape Town, its winter and around 6- 14°C overnight. My oak tree sprouted 8 suckers and they are growing strong. Why would the tree not sprout from the trunk or ...
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1answer
167 views

Oak Leaf Blister (Taphrina caerulescens)

I'm pretty certain my oak has Taphrina caerulescens symptoms. There is yellow bulbs on it since the beginning of the summer. Can it endanger the tree health? How can it be cured?
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How should I save an oak tree wounded by ground root removal?

I had somebody remove some oak tree roots from the ground one month ago. Now a couple of branches look dried. Others have no new leaves growing and the old leaves are dropping. This is in Houston, ...
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3answers
164 views

How do I perk up a Gray Oak I just planted whose leaves are turning yellow and brown?

I planted a container-grown Gray Oak tree in my yard last weekend, and it isn't looking very happy so far. Its leaves are turning yellow and then brown around the edges. The Gray Oak is supposed to be ...
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1answer
358 views

How can I bonsai a pin oak?

I have a small pin oak in a small pot thriving since spring in Brooklyn. I would like to keep it and I am thinking about bonsai. I think I need to keep it outside for two years? Should I give it a ...
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4answers
964 views

How can I compost oak leaves and sawdust?

I have the enviable problem of having several (6 or 7) cubic yards of both oak leaves and oak sawdust from having logged off and making cabinet lumber from many oak trees that once grew where our ...
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1answer
158 views

Transplanting an oak that has rooted through bottom of a pot

I need to move an oak tree that has rooted through the bottom of the pot and stands about 8-10 feet tall. It is way too close to the house and must be moved. I know this should be attempted in its ...
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Should I use a mycorrhizal inoculant when transplanting 4.5" caliper white oaks?

The site is on the east end of Long Island. Zone 6b. It is actually a re-vegetation of a forested area from which we removed over 40 mature pitch pines that had succumbed to some pine beetle. There ...
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1answer
754 views

What equipment do I need to transplant a 20' tall pin oak?

I knew a guy who moved 7 or 8 large (for moving) 20-35' pin oaks. He used a backhoe, digging out around the rootball, while leaving it intact. While this was successful, and the trees did very well, ...
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502 views

Is it important to deal with gall wasps on oak trees? If so, what is the best method?

Gall wasps are a common problem here on the east end of Long Island. Oaks are a dominant species around here, and many clients rely on them for shade around their houses and yards. What should be done ...
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How do I remove oak seedlings which sprouted in my garden?

I have an oak tree at the bottom of my garden and it has produced small trees due to fallen acorns in the grass. I need to remove them. How do I do that?
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1answer
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What conditions cause trunk sprouts on oak trees?

I asked a similar question here, but something annoying is catching my attention. Almost all of the pin oak trees in my area are sprouting up and down the trunks like crazy this spring, many of them ...
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Oak tree - arborist says needs to be removed?

I have a very nice oak tree in my backyard that is about 100-150 years old. The tree is in a good visual shape and we trim it about every two years. However, there is a wound on tree's stem, about 25 ...
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220 views

How should I transfer swamp oak seedlings from pot to ground?

I have an interesting project going on. I was visiting the 911 Memorial site in NYC last fall. There are many swamp oaks planted on the grounds, and in the footprint of where the twin towers stood. ...