Planting Application & Street Tree Removal
Requesting Street Tree Planting
People want to plant trees for various reasons. Some want shade and beauty. Others want to increase the value of their property. Still others wish to memorialize a loved one with a lasting, growing tribute. Whatever the reason, if you would like to see a tree planted on public property, it requires contact with the City of Pittsburgh Forestry Division. Tree Planting request forms can be found here
Why Do I Need a Permit?
City Right of Way (ROW) extends to the inner edge of the sidewalk, and sometimes well inside that sidewalk in cases where ROW is wider. You will need the expertise of the Forestry Division staff to determine what area falls under City jurisdiction. All work on City property, including planting trees, requires a permit. We seek to avoid creation of vehicular or pedestrian hazards, and ensure that utilities are taken into consideration. If possible property owner should bring either a couple of pictures or a short video capturing multiple angles and the overall canopy spread of the tree that the permit is being requested for.
The tree planting, removal and pruning form is a $25 permit fee.
Citizens’ Responsibility for Maintenance
No matter whether the City plants a tree, or you do it on your own at your own expense, the adjacent property owner is responsible for watering through the 2-5year establishment period. After that, you will only need to water during times of drought. You will need to keep the tree planting area weed-free for the life of the tree.
You are also responsible for annual mulching. This will help to control weed growth, and will keep moisture in the root zone. Additionally, when you mulch the root zone instead of installing turf, there is no need to mow grass in an area where damaging the delicate trunk bark of a young tree.
How Do I Know What Species to Plant?
Forestry Division maintains recommended species lists and a prohibited species list to provide guidance concerning species. Trees planted in city Right of Way require careful forethought with regard to species in order to avoid future conflicts utilities, vehicular traffic, pedestrians, and structures.
For instance, only trees with a mature height of 25 feet or less may be planted under power lines. Conversely, where no impediments to growth are present, we like to plant shade trees in order to maximize every reason for planting trees.
- Prohibited Tree Species
- Approved Park & Stormwater Tree Species List
- Approved Street Tree Species List
There are many elements to consider when selecting a tree for your site. These include cold hardiness, heat tolerance, growth rate, size at maturity, shape, pest resistance, and maintenance requirements. Check out the Tree Quality requirements for Pittsburgh, and you will see that we want a single, straight trunk with a well-formed branching structure. Most trees sold locally are balled and burlapped (B&B), but if yours was grown in a container, make sure it is not excessively root bound.
Root Zone Requirements
Roots need enough space to enjoy the full benefit of ample oxygen and water supplies. See Street Tree Root Zone Requirements
3’ X 3’ squares for trees simply don’t provide enough space for roots to develop.
Often when you see a small 3’X3’ square with a tree in it on City streets, it is a tree that is not thriving and will not have a productive life of environmental service. The City of Pittsburgh now requires a minimum standard root zone measure 3’ X 10’. This effectively triples the former square footage of useable root space, and will serve to ensure health and longevity for your tree.
Where a planting strip now exists, but is less than 3’ wide, you will be required to expand the space to the minimum width. When only concrete fills the entire space where you want to plant a tree, you will need to cut the space out of the concrete. You will want to contact Pennsylvania One Call prior to cutting or digging so you are aware of the location of utilities. Call 800-242-1776 or simply call 811 before you cut or dig.
Instructions on Planting a Tree
This tree was 8” too deep in the root ball, and had to be planted higher plus the excess soil had to be removed.
B&B trees often come with a wire basket which maintains the integrity of the root ball during shipping. After gently placing, sliding or rolling a root ball into the planting hole, and adding enough soil to stabilize the tree before final backfilling, cut away as much of the basket as possible to assure free passage of roots as the tree grows. The planting hole itself should be 2-3 times the width of the root ball at the soil surface, but never deeper than the root ball (see Tree Planting Detail 1). One of the most common problems with planting is setting the tree too deeply.
Peel back rope, wire basket and burlap and cut it off
Compounding the issue is the fact that often the tree arrives on site too deep in its root ball. It is important that the depth of the top main order root(s) be established before digging the hole in the first place. Untie the burlap noose at the top of the root ball, pull it back 6-12” and gently scrape soil away from the top to reveal the trunk/root flare (that area where the descending trunk flares sideways to become main roots).
Ideally, the root flare will be visible at the finished planting depth. A tree planted too deeply may suffocate from lack of air space, or it may have air pores filled with water because the roots are too deep in the soak zone.
Heavy B&B trees often require mechanical means to lift the weight. More than one muscular person may roll or slide the root ball into the planting hole
Only a bare root tree should be lifted by the stem/trunk. A B&B or container-grown tree has too much soil weight, and if lifted by the stem it may strip the bark and kill the tree. Likewise, do not scuff or scrape the trunk during the planting process. If practical, orient the tree in the hole the same way it was in the nursery. If you can notice a dark side, possibly with a little black mold or lichen on the bark, this was likely the north face of the tree in the nursery. If you can orient the tree in the same direction, thin-barked species are less susceptible to sunscald. The West and South faces of the tree are already accustomed to receiving more direct sunlight and warmth. We know you already know the benefits of trees, and that’s why you are choosing to plant more. Don’t forget… if you are planting on public property, you need to be in touch for a PERMIT. Good luck with your project!
Appealing Street Tree Removal
Citizens of Pittsburgh may appeal the pending removal of a street tree. When the City Forester tags a street tree for removal, typically an appeal packet will be left at the six adjacent properties closest to the tree. Citizens of Pittsburgh who are not one of those adjacent property owners may apply the appeal online.
- Trees Subject to Appeal Notification
This notification sheet is provided to up to six adjacent property owners, with the posting date and proposed removal date written on it, and an address identifying the location of the tree.
- Non-Appeal Notification
A second kind of notification is provided to up to six adjacent property owners when an appeal is not possible. The non-appeal notification sheet has a yellow highlighted area specifying the non-appeal status of tree. When such notification is provided to the adjacent property owners, an appeal packet is not left with the notification. A Sample Notification Poster is titled “This Gentle Giant is Retiring”, placing on the tree to notify adjacent property owners of the pending removal.
- Citizens’ Responsibility for Maintenance
Per the ordinance language, you must do the following:
- File your appeal within three weeks (21 days) of the posting date on the subject tree. Such application shall include one of the two types of tree planting request forms from above.
- Provide documentation showing why the tree is not a hazard: this document references agreement with the adjacent property owner (if other than yourself), as well as agreement to produce insurance coverage concerning the subject tree.