Friday, May 1, 2009

Do-it-yourself Greening...

Street Parks 

 

Do it yourself medians 

 

Planning 

 

1. Talk to your neighbors, including merchants. You need to have reliable, demonstrated 

community support for your project. You will also need a reliable team of 3-5 people who 

will consistently fundraise, participate, and organize planting and maintenance for each 

median.  

 

2. Contact Liz Lerma at the Department of Public Works (415-641-2627) to assess your 

initial concept and identify concerns. It is helpful to connect with DPW at the outset, 

before investing a lot of time and effort in a project. DPW has the most experience with 

gardening in the public right-of way; and can partner with you to build a successful 

project. 

 

3. Select one person, and one alternate to be the main point of contact for your group. 

These two people will need to be regularly and consistently available to facilitate and 

coordinate the project. City agency staff assigned to these projects sometimes begin 

work as early as 7 A.M., or work on weekends and holidays. Consider having your group 

representative and alternate make available their cell phone numbers and e-mail 

addresses to make communicating easier. 

 

4. Approach a landscape designer. They will either survey or ask you to survey the median 

you are considering greening. Make a plan drawing, to scale, that shows all existing 

conditions, including exact utility box locations, signs, existing trees or plants, and 

lighting. You will also need to measure the thickness of the curb itself, as the median 

width minus the curbs is the actual planting area. Note: You may not be able to remove 

all of the concrete on any particular median, depending on existing conditions; so 

prepare to be flexible. 

 

5. Ask your landscape designer to prepare a preliminary plant list. Contact Liz Lerma at the 

Department of Public Works again to have your preliminary plant list considered. A DPW 

Street Parks Committee will review your plant list. DPW will provide technical assistance 

necessary to establish a reasonable and appropriate plant list for your location.  

 

6. Next, have your landscape designer prepare a preliminary planting plan. Consider also 

consulting with the Friends of the Urban Forest (http://www.fuf.net) regarding their tree 

recommendation for your location – they may have experience in your neighborhood 

already. Be prepared to be flexible about the choice of plants and/or trees. Most trees 

and plants are inappropriate for median plantings. Your architect or landscape designer 

will need to consider local microclimate, soil conditions, the width of the median, the 

amount of automobile exhaust, visibility and other codes (e.g., no trees within 25’ of any 

traffic signal or sign, or within 5’ of any gas or water meter, adequate vehicular 

clearance, no plant taller than 3’), your budget and other limiting factors. DPW will assist 

your landscape designer with obtaining the proper codes and regulations, as necessary. 

 

7. Contact Liz Lerma at DPW again to have your preliminary planting plan considered by 

the Street Parks Committee. Despite the best planning and design, you may find that 

your preliminary plan has to change, even radically, based on actual conditions in the 

median – many medians have been poured over another layer of concrete roadway 

(sometimes even over old train tracks), and the site’s soil may be completely different 

from what your preliminary plan anticipated. Again, be flexible. 

 

Budgeting 

 

 

8. Once your Plan is approved by DPW, establish your baseline budget for construction 

and maintenance. Factor in the plants and/or trees your Plan calls for, replacing the 

existing soil under the concrete, to a depth of anywhere from 12-24”, with a grade of soil 

appropriate to your location (your landscape designer will be able to help you with this), 

landscape fabric (weed block) and fabric pins (1 every 8-10 feet, with extra for curved 

sections), decomposed granite to a depth of 2-2.5” (for mulching around the plantings 

and discouraging weeds), water hookups (see the attached sample budget and notes) 

and ongoing maintenance costs (watering, weeding, trash collection, etc.).  

 

9. For your Planting Day budget, try to find bright, recognizable hats for experienced 

gardeners willing to lead teams of volunteers – this will help volunteers figure out whom 

to ask for instructions. You might also include a few pairs of size small or medium ladies’ 

gardening gloves (City loaner gloves are all men’s size large), several sizes of 

disposable latex gloves (for trash collection or for persons with allergic reactions to 

certain kinds of plants), food, bottled water or other refreshments, and sanitizing hand 

cleaner. If you can, try to rent a portable toilet and sink unit. Consider renting or 

borrowing a canopy or similar structure to provide shade and keep food and 

refreshments out of the elements. A few folding chairs, dollies or hand trucks can be 

useful too.  

 

10. Once you have a baseline budget, determine if you want to fundraise independently, or if 

you want to apply for grant funding. Grant resources include San Francisco Beautiful 

(http://sfbeautiful.org), and the Neighborhood Beautification Fund/Community Challenge 

Grant Program (http://sfccgp.org). Local institutions and businesses also frequently wish 

to participate in neighborhood activities. Local nurseries, hardware or landscaping 

supply stores and other suppliers may also offer you discounted materials or services in 

order to be included in your project. Contact your district Supervisor’s office for other 

possible funding suggestions and possible partners. Bear all of these resources in mind 

as you plan your event and how or if to publicize it.  

 

Organizing 

 

11. Once your funding is established, begin planning your planting date. This should always 

be in the fall in order to give plantings the rainy seasons to establish themselves before 

they require additional watering. Planting in the dry season is not environmentally 

friendly; it’s hard on plants and trees, and it’s unnecessarily expensive. Planting days will 

also have to be on a Saturday in order to minimize conflicts with automobile traffic. Be 

sure to coordinate closely with DPW staff. Planting days will need to be completed by 

2:30 P.M. in order to fit into regular DPW staff workday schedules.   

 

12. Obtain an estimate from your landscape designer of how many hours your plant 

positioning, planting, mulching, staking and clean up will take. This estimate will be your 

guide to how many volunteers you will need. Plan to break volunteers into groups of 4-6, 

each led by an experienced gardener, or tree planter (planting trees is a different skill 

set, using different tools than other gardening). Make sure that you have and can 

distribute any special planting instructions (unusual planting depths, for instance) or 

precautions (some plants cause mild allergic reactions to some people’s skin) to both 

your gardening team leaders and DPW gardeners. DPW will arrange for an appropriate 

number of experienced DPW gardeners to teach your volunteers how to plant using 

landscaping fabric, to assist with the planting, and to make sure that everyone is 

following appropriate safety precautions. 

 

13. Depending on the size of your project, schedule your volunteers to come in shifts. You 

don’t want to tire your volunteers out! You also don’t want too many people to show up, 

only to be confused, or turned away for lack of work. Your landscape designer should be 

able to help you with this scheduling, in consultation with DPW. Add in a few volunteer 

positions to help you with trash collection, bagging, loading and unloading and general 

going back and forth. You may also want to find one or two people to help you sign in all 

of your volunteers and event participants, in order to document your planting day. These 

same people might also pass out information about your project or group, and answer 

questions from media, interested passers-by, and so on. You may also wish to find one 

or two people to take pictures of your planting day for future reference, and to share later 

on with participants. 

 

14. Determine which tools, and how many of them, you will need. Your landscape designer 

and DPW will be able to help you with this too. DPW will be able to lend you some of the 

tools you need, including safety vests and gloves, but availability varies. Consider 

contacting the San Francisco Clean City Tool Lending Center 

(http://sfcleancity.com/tool-lending/index.html) at 701-TOOL, where appropriate tools are 

lent out, free of charge, for up to 3 days. Many volunteers may have tools of their own. 

Ask DPW to provide trash and garden debris liners, brooms and dustpans so your 

volunteers and group can do a local clean up during down times, as well as gather up 

refuse produced by your project. Consider borrowing a bullhorn and/or walkie-talkies to 

communicate with the entire group, or from one end of your project area to the other. 

 

15. Plan to have an appropriate amount of food and refreshments, particularly water, for 

your volunteers. Gardening, especially tree planting, is hard work. Gardening in the 

middle of a street can also be quite hot. Don’t let anyone get dehydrated. For related 

reasons, consider renting and locating a portable toilet and sink close to your project site 

(if you do this, borrow a padlock to lock the facility before and after your event). 

 

16. Select a location for everyone to meet, sign in, receive instructions, eat and relax. This 

location should be large enough to safely accommodate all of the people you expect to 

participate in your planting day, including members of the press, public speakers you’ve 

invited, and people who want to cheer you on. If there is no space large enough, you 

may be able to have a few parking spaces vacated and cordoned off in advance for the 

duration of your event. This requires adequate public notice, and can be arranged 

through DPW, SFPD or DPT.  

 

17. You may wish to structure your planting day so that mealtime or snack time coincides 

with a celebration or public speaking opportunity. Food and refreshments can act as a 

natural way to gather people together, at which time they can be entertained or engaged 

in additional activities. Your district Supervisor, Police Captain or other community 

leaders will appreciate being invited to your event, and welcome an opportunity to 

address everyone. You may also wish to use this time to thank key people, city 

agencies, companies or contributors who have been instrumental in bringing your project 

to life. 

 

18. DPW will work with you to establish the day’s schedule. It will take DPW some time to 

cone off lanes of traffic, as necessary, to work with you to unload and set up tools and 

supplies, and to cover the medians with landscape fabric. Make sure that a few reliable 

volunteers in your group are available during this time to work with DPW, help set up 

tools and coordinate supplies. Keep these volunteers separately tasked from the 

volunteers you will need to run your refreshments, volunteer coordination, sign-in, 

information desk, and so on. Try to keep your two main project leads free from specific 

tasks so that they can move freely between tasks, coordinate and make decisions as 

necessary. Expect the unexpected! 

 

Planting/Construction 

 

19. Plan to place the plants early, according to your planting plan, well before volunteers are 

expected to begin planting. Because of their nature, median planting days operate on a 

tight schedule. 

 

20. Start your planting day with a short period for people to socialize, sign in and familiarize 

themselves with the location and surrounding intersections. Some of your volunteers 

may not be familiar with the area or traffic patterns. Consider making an opening 

announcement that welcomes people and gives them useful safety precautions, as well 

as initial instructions about where to find team leaders, tools and safety equipment. If 

you find that you have more volunteers than you were counting on, encourage extra 

hands to grab gloves and trash liners and help do a local clean up. There’s no sense in 

making a median look beautiful and green if it’s surrounded by street tree wells full of 

trash and weeds. Use this time and protection from weekday traffic volumes to give the 

whole surrounding area a small facelift.  

 

21. Have fun! 

 

Maintenance 

 

22. Remember, on a calm residential street, you need a reliable team of neighbors and 

interested parties to regularly weed, water, pick up trash and keep an informed eye on 

your plantings. Have a procedure for what to do when a tree is knocked down or a 

branch breaks. Have a DPW Street Parks Committee - approved maintenance plan for 

how to assess and/or replace damaged or diseased plants, add mulch, and so on. 

Finally, a garbage-strewn, planted median can be as much or more of an eyesore as 

concrete. Don’t let your investment go to waste. 

 

23. Landscaped medians require a higher level of maintenance than concrete. Depending 

on the location, level of organization and local support, your project may provide this 

maintenance through volunteers or hired professionals. Landscapes require regular 

weeding and watering (until plants are established), ongoing litter pickup, pruning, 

occasional replacement of plants, and mulch.  While any single project may require 

minimal care, as green medians increase citywide, city crews cannot support 

maintenance requirements with current funding levels. 

 

Sample Project Budget 

Street Parks: Guerrero Medians 

(between C. Chavez and Duncan + C. Chavez island @ Guerrero) 

   

Type Description Quantity Retail Price 

Design Guerrero Street Gardens Design Fee 8 hours $800 

Demolition DPW: concrete removal and overhead 3 DAYS $14,365 

Hauling DPW: concrete and soil dump fee 120 cubic yards $2,000 

Soil Sandy Loam 110 cubic yards $3,461 

Delivery Sandy loam delivery charge ($85 per 10 cubic yard trip) 110 cubic yards $1,014 

Mulch Gold Path Fines (Decomposed Granite) 10 cubic yards $694 

Delivery DG delivery charge ($85 per 10 cubic yard trip) 10 $92 

Tree 24’ boxed Olea europaea 'Swan Hill Olive'  7 $3,380 

Tree 24” boxed Tracycarpus Wagnerianus (Miniature Chusan Palm) 6 $1,411 

Plant 5-Gallon Agave huachuensis 10 $616 

Plant 5-Gallon Agave medio-picta alba 10 $616 

Plant 1-Gallon Dyckia remotiflora 4 $93 

Plant 1-Gallon Dyckia hybrid 1 $20 

Plant 1-Gallon Aloe 'Johnsons hybrid' 26 $100 

Plant 1-Gallon Agave parisana 1 $20 

Plant 1-Gallon Euphorbia myrsinites 48 $760 

Plant 1-Gallon Leucadendron s 'Red Tulip' 20 $432 

Plant 1-Gallon Libertia peregrinans 30 $498 

Plant 6” Sedum 'Blue Carpet' 30 $598 

Plant Various 4” succulents/cacti (sedum, cotyledon,aeonium) 159 $1,577 

Plant 5-Gallon Adenanthos drummondii 3 $175 

Shrub 6” Cussonia spicata 10 $116 

Supplies Landscape fabric (weed block) 500 feet of 4' rolls $390 

Supplies Landscape fabric staples 3 boxes $29 

Supplies Small and medium garden gloves 6 pair $3 

Supplies Latex gloves 1 box $14 

Rental PortoSan (portable toilet) with sink unit 1 $150 

Supplies Team leader baseball hats 10 $23 

Food & Bev Breakfast, lunch, coffee, beverages & snacks for 100 volunteers multiple $483 

Plumbing PUC: Water meters * 3 $12,903 

Plumbing DPW: Hosebibs 3 $1,500 

Plumbing DPW: Cement work at hosebibs 3 $270 

Approximate total Square footage 1703  

Total Cost  $48,117 

   

Approximate cost per square foot $28   

Approximate linear footage 500  

 * Water-Plumbing Cost variables     

 Water meters (when there is none at the location) 1 $4,301 

 Water meter resets (when there is a meter) 1 $742 

 Hosebibs (faucets) 1 1 $500 

 Cement work (at hosebibs) 1 $90 

     

 1 Irrigation systems (automated) require considerable additional expense.     

 

for more information, see http://www.sanjoseguerrero.com, or call 415.285.8188 

 

Guerrero Medians Draft Plant List   

   

design by Flora Grubb, Flora Grubb Gardens  

http://www.guerrerostreetgardens.com   415.648.2670 

   

Code Type Description Quantity 

OL Tree Olea europaea 'swan hill' 7 

TR Tree Trachycarpus wagnerianus 6 

   

3 Agave Agave alba media picta 10 

2 Agave Agave huachuensis  10 

1 Agave Agave parisana  21 

   

4 Succulent Aeonium 'Cyclops'  16 

5 Succulent Cotyledon orbiculata 20 

6 Succulent Aloe 'Johnsons hybrid' 31 

   

7 Shrub Adenantos drummondii 3 

8 Shrub Leucadendron 'Red Tulip' 20 

CU Shrub Cussonia spicata  10 

   

9 Grass-like Libertia peregrinans  30 

   

10 Groundcover Euphorbia myrsinites 48 

11 Groundcover Sedum 'Blue Carpet'  30 

12 Groundcover Sedum 'Dragons Blood' 48 

 

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