Friday, August 16, 2013
Sunday, July 28, 2013
Plants on Vacation
There are many Lilium superbums with flaming petals and tall stalks. Asclepias incarnata, Hibiscus, and swaths of Joe Pye Weed and Cattails and Rush.
Of course the wild grape, Japanese honey suckle, and knotweed loom large. The whole forest floor is covered with Euonymus. But I try to focus on the beautiful plants I love, enjoy seeing them in nature and not get depressed that all this habitat is being crowded out.....
Monday, July 22, 2013
Queen of the Night - night-blooming cereus
And, thanks to the wonders of the internet, you can see it too:
Thursday, July 18, 2013
A bit more about that Tax Abatement Extension
Let's start with a quick summary of the current abatement from S.W.I.M.'s coordinator Rob Crauderueff:
Financially, the old abatement just didn't cut it. The reduced rate of $4.50/s.f. was too low to be appealing to private building owners, the amortization schedule reduced the value, and perhaps most disappointing, the administrative costs to implement a green roof could add $7.50/s.f. for a 10,000 s.f. green roof to about $19/s.f. for a 1,000 s.f. green roof.
Oh, and don't forget about all that time it takes to jump through those administrative hoops! Crauderueff sites that 3 out of 4 successful applicants spent over 100 hours of staff time on the process.
The abatement required that 80% of the roof must be covered with vegetation one year after application and specifically sited sedum as the go-to filler. Now, don't get me wrong, I think sedum is a beautiful and productive plant, but I stick with the Benjamin Franklin model - everything in moderation. Using pre-grown vegetative mats also increased costs.
Finally, non-profits and affordable housing owners couldn't benefit from the abatement, cutting out an interested and willing population.
The extension does not address all of the problems that Crauderueff and partners suggested, but there are some exciting improvements.
The definition of 'green roof' was expanded to allow for the inclusion of a controlled flow roof drains, specifying that if the depth medium is less than three inches, a controlled flow drain or other preventative drying method can be added.
New native and agricultural plant species were added to the list of "live plants" that can be used to meet the requirement of the 80% vegetation coverage. Opening the abatement up to rooftop farms and plants other than sedum.
The amount of the abatement was increased to $5.23/s.f. beginning July 1, 2014, which actually was just meant to keep the abatement in line with pricing increases, but we'll take it. Also the maximum was raised to $200,000 (up from $100,000), mostly meant to help out the more expensive rooftop farms.
The bill from the state legislature does not mention improving administrative procedures, so our fingers are crossed that some streamlining will happen with the implementation of the extension.
The point of these new incentives is part of a larger green infrastructure program in the city to capture the first ince of rainfall on 10% of the impervious areas in combined sewer watersheds through detention or infiltration techniques. But, because green roofs have so many other sustainability benefits, the abatement is open citywide.
Which makes me think, wouldn't it be great if individuals could register their own tiny improvements as part of the city's goal - registering window boxes, street planters, gardens, and native plants not only for tax credits (one can dream) but also to create a wider community around conservation efforts.
Here's to hoping. If you'd like to get involved, become a member of S.W.I.M. The group just announced their July meeting (Wednesday, July 24) where they'll discuss the Green Roof Tax Abatement in more depth.
Tuesday, July 16, 2013
Surviving the Heat Wave
Friday, July 12, 2013
Native Appreciation: Shady Love
Enter twinleaf (Jeffersonia diphylla). Its a great native plant that can thrive in the shade. When it flowers - don't blink, you might miss it - it has a single white flower. You'll notice that it's leafless stalk is topped by, you guessed it, a leaf divided lengthwise into two twin halves. It is a short plant that will add a lush green to your space.
On a historical note - the plant was named for Thomas Jefferson by his friend, William Bartram, and, besides the United States, is only found in Japan. Native Americans are said to have used the roots to ease cramps, treat liver problems & urinary infections, and as a gargle for sore throats. Early Americans also used it to cure many of the same ills, but don't get any ideas - the plant is now considered poisonous!
It is listed as endangered in Georgia and New Jersey, and threatened in Iowa and here in New York. Planting it in your garden not only adds beauty but also helps keep this little guy around.
Wednesday, July 10, 2013
River to River - Artists Take On Water
The neighborhood's flooding during Sandy was a shocking, poignant image from the storm and still pops into my head when I think of climate change or read about new plans for the city's water infrastructure (the image to the right is from the DailyNews' coverage after the storm, a throughly disturbing series of images). Fluid: Construct is a gathering of pieces created by four artists that addresses the city's relationship with water. It reminds me that sometimes its good to take a break from the world of architectural and design drawings to see planning work in a different light.
The festival goes through this weekend, but the exhibit will be open until August 2.
Friday, July 5, 2013
Fields of Yellow

We installed these pre-grown sedum trays at New York Hospital Queens (NYHQ) - 15,000 SF in all. The sedum will help to regulate and capture stormwater runoff during wet weather, so we've been watching it do its job all week. The roof is visible from many patients' rooms, so this golden oasis can add a bit of brightness to these grey days!
Sedum is a water-holding plant that also has drought tolerance. It can grow in many colors, but ours grew in with the cheery hue of sunshine! It has a special type of metabolism called "Crassulacean Acid Metabolism' (CAM) which, during draught conditions, allows it to open its leaf pores at night rather than during the day, making it more efficient than non-CAM plants. We got our trays from LiveRoof, a great network of green roof growers.
The roof will be monitored by Manhattan College students, who will be measuring its impact on local water systems. Making it not only a beautiful site, but also a learning space.
The greenroof at NYHQ was just one aspect of the hospital's plan to reduce their environmental impact. They also replaced old equipment with newer high efficiency models, began a recycling program - the hospital was the first to meet Mayor Bloomberg's challenge to NYC hospitals, universities, and businesses to reduce overall carbon emissions by 30 percent over ten years. NYHQ met that goal in just two!
Wednesday, July 3, 2013
Red, White & Hot - Chasing Ice
I’m not sure I agree with all of the mayor’s plans, but I was happy to see the conversation beginning. Cheers for a happy and safe holiday weekend - full of Red, White, & Blue fun! My only wish is that all of those folks lucky enough to head up to rooftops to gaze up at those fabulous colors exploding over the Hudson were also able to look down at a greenroof at their feet.
Want to see exactly where and what is proposed? Check out this great interactive map from the WNCY Data News team:
Friday, June 28, 2013
Green Roof Happy Hour
You'll notice the native prickly pear, our own Opuntia humifusa, is now in bloom for a limited time engagement. After this it will just go back to being a prick, so enjoy it now!
We'll still love it though - prickly pear can have a lot of uses, but our favorite on a Friday afternoon is the Prickly Pear Cactus Mojito. Happy Friday!
Tuesday, June 25, 2013
Exciting News - Green Roof Tax Abatement Extended
Our friends at S.W.I.M. broke the news and we couldn't be happier! They've also shared their independent evaluation of the NYC Green Roof Tax Abatement report which assesses the efficacy of the abatement.
Proving its a good time to go green!
Friday, June 21, 2013
The Grass Is Greener
Monday, May 6, 2013
Pfizer Goes Green!
The former Pfizer building located in South Williamsburg, Brooklyn is getting a green roof paid for by the Department of Environmental Protection Green Infrastructure Grant. Alive Structures partnered with the buildings new owner, Acumen Capital Partners, to apply for the grant, and we received it! The roof will be 28,000 SF of sedum and native plants, there will also be a section for agriculture.
The building where Viagra was once manufactured is now an incubator for hip Brooklyn food start ups like McClure’s Pickles, Brooklyn Soda Works, Steve’s Ice Cream andMadécasse, to name a few. The building is perfect for food production with all of it's laboratories, sterile environment, and climate control storage. Acumen Capital Partners is committed to restoring old factory buildings and keeping them for local industry as opposed to making a quick buck and turning them all into "luxury lofts". We're hoping for a fall installation. Stay tuned for more news about it as we move forward.
See the DEP press release to find out about all the Green Infrastructure Projects chosen for 2013.
Here we are at the opening ceremony which took place on the Pfizer building last week.
| Marni in the middle of a sea of suits. On the Pfizer Building with DEP. |
Tuesday, April 9, 2013
Coldspring to Heatwave
| Star Magnolia in full bloom at 23rd St. |
This is your plant this past month:
'It's snowing, no way I'm gonna come out now.'
'Nice, finally! I'm going to send out some new growth.'
'Still nice. Sweet! I'm gonna bud.'
'Damn! I'm freezing my buds off! My owner's going to think I'm dead now. And I might be....'
'Oh, good. I'm still alive, and it's nice out again. I wish my owner would water me and stop thinking I'm dead.'
'Damn! It's hot!!!! Water! Agua! Eau! What language do I need to speak to get you to water?!'
Remember to water your gardens, green roofs, and especially potted plants, even when it goes back down to 50 deg.
Monday, March 25, 2013
Coldspring / Hot Blog
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| Natasha and Marni Majorelle, March 2013, Prospect park- Forest School! |
The first thing I'm doing is returning to the office - at good old 33 Flatbush! A few things have changed, like a gigantic tower built next door and this terrifying crane. Other than that it's still the great old place it's always been with amazing people and businesses.
| Witchhazel in bloom in Madison Square Park. |
These unusual blooms look like yellow fire crackers or shooting stars.
So even though you're freezing and haven't finished your taxes, prune your rose (learn how!), cut down the grasses (if you haven't already in the fall), remove all those unsightly leaves surrounding the gorgeous blooms on your hellebore, add some mulch and compost, warm up, and then have a beer and gulash! It will be 90 degrees before you know it.
Tuesday, February 21, 2012
Tell the EPA to raise water quality standards!

Wednesday, February 15, 2012
More Terrariums, if possible....
I know the design world is gaga about terrariums. Maybe they've become so trendy, that they're actually no longer in style. This sentiment is expressed in the blog site I was sent by an architect friend : fuck your noguchi coffee table, which states "fuck your terrarium lamp" with image below.
Friday, January 20, 2012
Sharks! Stingray! Lion Fish!! Palm Trees!
Blogging about a recent trip to the caribbean is not intended to make anyone jealous, but simply to share interesting ecological information-but, yes, my tan looks great, thanks :) My family and I stayed for one week in Guanica, Puerto Rico beside the largest remaining tract of tropical dry coastal forest in the world, which was declared an International Biosphere Reserve by UNESCO because of its biological diversity. The forest feels both tropical and desert. Walking on it's trails, one is surrounded by low growing twisted shrubs, barrel cacti, cactus trees, but also palm trees and the turquoise ocean (also a few nice gay beaches if anyone's interested).
The dry forest has 700 plant species of which 48 are endangered and 16 exist nowhere else. Its forest hosts the greatest number of bird species on the island, including the Puerto Rican Emerald Hummingbird which pollinates the flowering barrel cacti in the winter months.


In the same region are lush mangroves and coral reefs. Home to manatees, nesting sites for Hawksbill turtles, and crested toads. While we didn't see manatees, we did see many beautiful fish and coral. (Beautiful underwater image of elkhorn coral by my brother Joshua Horwitz) See one of my favorite quirky fish, the Spotted Trunkfish.

Nearby, is a rare Bioluminescent Bay, which we did not visit but heard lots about. In this bay are 720,000 single-celled organisms that glow when they are agitated. This illumination is a defense mechanism by the tiny plankton that will dim and disappear if you hold completely still. These bays are scarcely found internationally because of the delicate ecological balance they require. Unfortunately, visiting this bay and experiencing a bit of it's magic probably damages it more since people wear mosquito repellent and carry other pollutants into the water.


Coral reefs, which take centuries to form, are also damaged by people's visitations. Coral is often broken by careless snorklers, motor boats, and pollution. But the larger threats to reefs are global warming and ocean acidification. According to Environmental Health Perspectives a heat wave starting in 2005 left roughly 60% of the coral cover in the Virgin Islands and 53% in Puerto Rico’s La Parguera Natural Reserve dead. This is an unprecedented tragedy.
Coral reefs consist of a variety of colors shapes and textures. Sometimes they echo the landscape on the ground, looking like a tall cacti , but many of the shapes you never find on land, like coral fans.





For a horticulturist, seeing the varieties of coral and the rich world it creates is like exploring a beautiful botanical garden. The problem is you don't want to get too close; you risk damaging the coral with your flippers and can get burned and scratched by it.
The amazing fish that would swim in and out of the coral were like watching people inhabit a busy building. Sometimes the coral was so busy and full of fish it was like Times Square.
One fish, though very beautiful, is quite dangerous, the Lion Fish. The Lion Fish is originally from the Pacific Ocean and has no known predators in all of the Atlantic. Their introduction is a result of hurricanes and tank releases during the early 1990’s. Due to their population explosion and aggressive behavior, Lion fish have the potential to become the most disastrous marine invasion in history by drastically reducing the abundance of coral reef fishes and leaving behind a devastated ecosystem. In Puerto Rico, the government offers $1 for every dead Lion Fish someone turns in. Also, some restaurants have started serving Lion Fish which is said to be tasty. I think dealing with invasive species through culinary strategies is a great idea!
Photo by Josh Horwitz!
After a week in Puerto Rico, Eric and I traveled to St. Johns for a week. This will have to be a whole other blog, but I do want to share some images of the exciting larger wildlife we saw underwater, such as nurse sharks, reef sharks, spotted eagle sting rays, and green sea turtles. Scary but fun!















