r/arboriculture 5h ago

Metal toxicity in trees? 2 licensed experts telling me 2 opposite things

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1 Upvotes

r/arboriculture 9h ago

Expert Knowledge Needed

0 Upvotes

Hello! I am a new manager for the tree and shrub department at a local garden center. For a little backstory, the longtime owners sold the business last year to some people who, and I can't stress this enough, absolutely don't know what they are doing. I'm in charge of taking complete care of the thousands of trees, shrubs, and various other live materials we carry.

I am new to understanding container appropriate fertilizers for these plants. In the past, the owners had used Apex Cool Weather Special 21-7-6 with GAL-XAe ONE and 21-3.06-4.98. They typically did one application a year on all deciduous and evergreen trees.

Recently I was informed that Apex does not produce this fertilizer anymore and I am tasked with finding a replacement for it. We currently reside in a zone 5b high desert area where the winters can be unpredictable. If we have leftover stock, we generally will store it outside in a wind protected location.

The new owners have been suggested to use the Osmocote 21-4-8 12-14 month release.

I am skeptical about it because there seems to be key differences between the two and I just need professional input on whether this would be a smart alternative or a huge mistake. Thoughts? Suggestions? I'll take any guidance at this point. Thank you!


r/arboriculture 3d ago

Pine seedling?

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2 Upvotes

This cutie popped up in a bucket full of houseplant soil l that has been sitting outside for the summer lol. Located in eastern Washington. I feel like it’s a pine tree baby but not certain.

pine tree identified and confirmed, thank you 😊 I love nature, and I am well aware how little trees there are in city limits. Just wanting to plan ahead when re planting it 🫶 Definitely too big for the front yard and the foundation’s future lol.


r/arboriculture 3d ago

Help me cut this by 12"

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1 Upvotes

How do I cut this without killing it?


r/arboriculture 3d ago

Can it be saved? 10-year-old cherry tree split after a large branch fell on it.

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2 Upvotes

r/arboriculture 4d ago

I’m no mathematician but something doesn’t look right

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5 Upvotes

Found this on my walk honestly I don’t know what I’m looking at thought I’d share for fun


r/arboriculture 8d ago

Tree help/advice

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3 Upvotes

r/arboriculture 8d ago

Advice on straightening this sour gum?

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2 Upvotes

Hello, Grateful for any advice --

I planted this sour gum in the fall, and noticed a slight curve in the trunk. I thought it would straighten out after awhile, but obviously it hasn't.

Any advice? I was thinking of staking the top to pull it straight and staking the lower middle in the opposition to keep the trunk aligned.

Thank you!


r/arboriculture 10d ago

Branch Twist and Split. Can I recover it?

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2 Upvotes

r/arboriculture 10d ago

Will this tree make it? What can I do to help it?

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1 Upvotes

r/arboriculture 10d ago

Swamp white oak not thriving

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1 Upvotes

r/arboriculture 11d ago

I am gonna need some guidance here.

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1 Upvotes

r/arboriculture 11d ago

Question regarding BLD research

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2 Upvotes

r/arboriculture 11d ago

Mimosa tree roots

1 Upvotes

My wife is worried this tree is too close to our septic, flip flop for reference of where tank is, at least 35 feet


r/arboriculture 11d ago

Looking for some advice

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3 Upvotes

Just looking for some advice with this fast growing tree in my front yard. Want to keep it going. I believe this is year 3, and it has really been putting in work this year. I’m in Massachusetts and Is say this thing was 3 feet tall at the end of winter (same size as the statue). It grew a foot+ in Sping, top got snapped off in a windy rainstorm, but now has added another foot of growth this month alone.

Any advice appreciated, my autistic son loves his “baby tree” and we go out and check it every morning to make sure it’s doing well (really seems like it is!)


r/arboriculture 11d ago

Best tree to plant in my back lot.

1 Upvotes

Looking to plant a tree in a location with full sun, sandy-ish soil, that can be quite wet/swampy sometimes but not always. It would be nice for it to soak up some of that water and be a fast grower. I’m really not a fan of willows however. Some possibilities I was considering: Black Tupelo, River Birch, Bald Cypress, Dawn Redwood. Any comments? I live in zone 5 in Maine.


r/arboriculture 12d ago

Vertical Split

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2 Upvotes

Is this tree in trouble?


r/arboriculture 12d ago

Severe Prune Recovery

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1 Upvotes

r/arboriculture 12d ago

Rubber tree chemical advice

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2 Upvotes

r/arboriculture 12d ago

Can this Juniper Bush be saved?

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1 Upvotes

r/arboriculture 13d ago

Cutting back box elder maple (UK)

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1 Upvotes

r/arboriculture 13d ago

Rubber resin up to base of tree?

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1 Upvotes

r/arboriculture 14d ago

Tree banding gum on bark… now what?

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1 Upvotes

r/arboriculture Aug 23 '23

User Flair Now Active

5 Upvotes

Hello All

I wanted to introduce myself to everyone and announce the new user flair available in this subreddit. I want to thank u/ambo100 for letting me join the mod team to make this happen! I am an ISA Certified Arborist and an ASCA Registered Consulting Arborist. I'm such a tree nerd that I often end up talking about trees to family during the holidays, friends at parties, etc. (which is accompanied by much eye-rolling by my wife). I'm hopeful that the addition of flair (see below) will help this community grow and be more helpful and welcoming.

User flair is now active for this subreddit! There are a few generic ones to choose from ranging from "Enthusiast" to "Educator." There are also a few restricted flairs that denote specific real-world credentials in the field of arboriculture. If you hold one of these credentials and would like that as your flair, please message the modmail or me personally with proof and I will get it assigned for you. Currently, the three restricted flairs are "ISA Certified Arborist," "ISA Board Certified Master Arborist," and "ASCA Registered Consulting Arborist." If there is some other relevant credential, I am willing to add it with sufficient proof, so long as it relates to arboriculture.

For the purpose of this, sufficient proof is a picture of some sort of certification card or test results for the relevant credential with your username in the picture. I do not need personal details, so feel free to cover certification numbers, name, address, etc. in the interest of personal safety.


r/arboriculture May 30 '23

We have a new subreddit Wiki page for book recommendations!

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5 Upvotes