Re: [Biofuel] straw cultured potato
Hey Kirk. Ive tryed the straw no dig method this year insted of earthing up the potatoes you just add straw grass clippings etc there looking good so far. I've herd slugs can be a problem. I will compere the yield with my other potato beds will let you know how it goes. Myke. Kirk McLoren [EMAIL PROTECTED] wrote: ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk Keith Addison [EMAIL PROTECTED] wrote: The effects of greening rooftops are quite well known, there are enough examples for quite a clear picture to have emerged, showing a wide range of benefits and no apparent downside. The idea of greening rooftops could hit the big time any time, like the local food movement that's sweeping the world (and the media) right now. The foundation for that was already there, with the CSAs, city farms, local markets, community gardens of the last 30 years, then the Slow Food movement and so on. The work had been done, it was just waiting to happen. Greening rooftops could also be just waiting to happen. There's obviously a lot of synergy with the local food boom. The Journey to Forever garden at our first hq at the Beach House on Lantau Island in Hong Kong got me thinking a lot about rooftop gardens. We grew pumpkins and stuff in big baskets up old bamboo ladders onto the cement roofs of two outbuildings there that were hellish hot inside during summer, definitely a good thing to do. The whole garden was built on cement, or through it. I removed the cement for the sq foot beds and so on, but there was eight feet of sea sand mixed with builders rubble underneath (pre-plastic, 1960s rubble). Only one person ever asked where we got the soil. We made it, 12 deep, on top of the sand. Our tomatoes were 12 feet tall and very productive, everything was productive - we grew potatoes and sweet potatoes in bathtubs, and sweet potatoes on top of bare cement (one was 2 ft long). Large variety of crops. A whole ecology moved in, birds and bees and bugs that you don't find on beaches, frogs, butterflies, we found a small watersnake living in our pond (another bathtub). That small space produced a lot of great food! http://journeytoforever.org/garden.html Organic gardening: Journey to Forever organic garden http://journeytoforever.org/garden_con.html No ground? Use containers Etc. It wasn't that different from a rooftop garden. For anything more than an outhouse you need to know what loads roofs can take and so on, how much wet soil weighs, figure out water supply and drainage. But if it's built for people to walk on you should be able to green it effectively in one way or another. I'd like to have more and better resources at Journey to Forever on rooftop gardening. I'll do a search when I get the time. Any suggestions welcome. Best Keith A grass roof would be evaporatively cooled. Need less air conditioning. Average attic in summer is a sauna. Zeke Yewdall wrote: I don't see cows being kept on rooftops. Cow-sized staircases would just consume too much space! But I do see small dairy operations within easy walking distance of city centres. Dawie LOL. Probably not cows. But a goat could. And chickens. Milk and eggs. They eat the scraps from the rooftop garden and turn it back into protein for the humans and fertilizer for the garden. We need to start seeing our roofs as something other than wasteland helping generate a heat island and view it as a land area that we could use for food and energy production. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ - Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase.___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ - The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider.___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html
[Biofuel] straw cultured potato
ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk Keith Addison [EMAIL PROTECTED] wrote: The effects of greening rooftops are quite well known, there are enough examples for quite a clear picture to have emerged, showing a wide range of benefits and no apparent downside. The idea of greening rooftops could hit the big time any time, like the local food movement that's sweeping the world (and the media) right now. The foundation for that was already there, with the CSAs, city farms, local markets, community gardens of the last 30 years, then the Slow Food movement and so on. The work had been done, it was just waiting to happen. Greening rooftops could also be just waiting to happen. There's obviously a lot of synergy with the local food boom. The Journey to Forever garden at our first hq at the Beach House on Lantau Island in Hong Kong got me thinking a lot about rooftop gardens. We grew pumpkins and stuff in big baskets up old bamboo ladders onto the cement roofs of two outbuildings there that were hellish hot inside during summer, definitely a good thing to do. The whole garden was built on cement, or through it. I removed the cement for the sq foot beds and so on, but there was eight feet of sea sand mixed with builders rubble underneath (pre-plastic, 1960s rubble). Only one person ever asked where we got the soil. We made it, 12 deep, on top of the sand. Our tomatoes were 12 feet tall and very productive, everything was productive - we grew potatoes and sweet potatoes in bathtubs, and sweet potatoes on top of bare cement (one was 2 ft long). Large variety of crops. A whole ecology moved in, birds and bees and bugs that you don't find on beaches, frogs, butterflies, we found a small watersnake living in our pond (another bathtub). That small space produced a lot of great food! http://journeytoforever.org/garden.html Organic gardening: Journey to Forever organic garden http://journeytoforever.org/garden_con.html No ground? Use containers Etc. It wasn't that different from a rooftop garden. For anything more than an outhouse you need to know what loads roofs can take and so on, how much wet soil weighs, figure out water supply and drainage. But if it's built for people to walk on you should be able to green it effectively in one way or another. I'd like to have more and better resources at Journey to Forever on rooftop gardening. I'll do a search when I get the time. Any suggestions welcome. Best Keith A grass roof would be evaporatively cooled. Need less air conditioning. Average attic in summer is a sauna. Zeke Yewdall wrote: I don't see cows being kept on rooftops. Cow-sized staircases would just consume too much space! But I do see small dairy operations within easy walking distance of city centres. Dawie LOL. Probably not cows. But a goat could. And chickens. Milk and eggs. They eat the scraps from the rooftop garden and turn it back into protein for the humans and fertilizer for the garden. We need to start seeing our roofs as something other than wasteland helping generate a heat island and view it as a land area that we could use for food and energy production. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ - Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase.___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] straw cultured potato
Kirk, Last year I followed a friend's suggestion a friend's of growing potatoes in a cage. I planted some potatoes in the soil and put a wire cage around each plant. As the potato plants grew, I added leaf mold to the cage. I could then simply remove the cage, pull back the leaf mold and the potatoes would be had w/o digging/bruising. I noticed that the plants I grew in the ground, w/o cages, were healthier than the caged plants. They also had less insect damage to their leaves. I had to water the caged plants. Harvesting was easier, but the caged plants produced noticeably smaller potatoes. I know this is not exactly what you are asking about, but I can't help but wonder if the difference between the caged and the soil-grown potato plants came down to plant nutrition; living soil vs. artificial growth medium. The caged potatoes were planted in soil, and the leaf mold had some nutrients to offer. I don't think it compares to the living, compost-enriched soil my dirt potatoes were grown in. I think that straw would also come up short of living soil. Tom - Original Message - From: Kirk McLoren To: biofuel@sustainablelists.org Sent: Friday, June 15, 2007 6:22 AM Subject: [Biofuel] straw cultured potato ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk Keith Addison [EMAIL PROTECTED] wrote: The effects of greening rooftops are quite well known, there are enough examples for quite a clear picture to have emerged, showing a wide range of benefits and no apparent downside. The idea of greening rooftops could hit the big time any time, like the local food movement that's sweeping the world (and the media) right now. The foundation for that was already there, with the CSAs, city farms, local markets, community gardens of the last 30 years, then the Slow Food movement and so on. The work had been done, it was just waiting to happen. Greening rooftops could also be just waiting to happen. There's obviously a lot of synergy with the local food boom. The Journey to Forever garden at our first hq at the Beach House on Lantau Island in Hong Kong got me thinking a lot about rooftop gardens. We grew pumpkins and stuff in big baskets up old bamboo ladders onto the cement roofs of two outbuildings there that were hellish hot inside during summer, definitely a good thing to do. The whole garden was built on cement, or through it. I removed the cement for the sq foot beds and so on, but there was eight feet of sea sand mixed with builders rubble underneath (pre-plastic, 1960s rubble). Only one person ever asked where we got the soil. We made it, 12 deep, on top of the sand. Our tomatoes were 12 feet tall and very productive, everything was productive - we grew potatoes and sweet potatoes in bathtubs, and sweet potatoes on top of bare cement (one was 2 ft long). Large variety of crops. A whole ecology moved in, birds and bees and bugs that you don't find on beaches, frogs, butterflies, we found a small watersnake living in our pond (another bathtub). That small space produced a lot of great food! http://journeytoforever.org/garden.html Organic gardening: Journey to Forever organic garden http://journeytoforever.org/garden_con.html No ground? Use containers Etc. It wasn't that different from a rooftop garden. For anything more than an outhouse you need to know what loads roofs can take and so on, how much wet soil weighs, figure out water supply and drainage. But if it's built for people to walk on you should be able to green it effectively in one way or another. I'd like to have more and better resources at Journey to Forever on rooftop gardening. I'll do a search when I get the time. Any suggestions welcome. Best Keith A grass roof would be evaporatively cooled. Need less air conditioning. Average attic in summer is a sauna. Zeke Yewdall wrote: I don't see cows being kept on rooftops. Cow-sized staircases would just consume too much space! But I do see small dairy operations within easy walking distance of city centres. Dawie LOL. Probably not cows. But a goat could. And chickens. Milk and eggs. They eat the scraps from the rooftop garden and turn it back into protein for the humans and fertilizer for the garden. We need to start seeing our roofs as something other than wasteland helping generate a heat island and view it as a land area that we could use for food and energy production. ___ Biofuel
Re: [Biofuel] straw cultured potato
That's how we always planted them. Maybe more like 6 of straw. The actual pototatos were planted about 4 deep in the dirt, then after they came up, the straw was put on. At the end of the year, you could pull the straw back and the potatoes would be sitting mostly right on top of the dirt. So, they were definitely growing in dirt, but the potatoes formed at the very top of it. Z On 6/15/07, Thomas Kelly [EMAIL PROTECTED] wrote: Kirk, Last year I followed a friend's suggestion a friend's of growing potatoes in a cage. I planted some potatoes in the soil and put a wire cage around each plant. As the potato plants grew, I added leaf mold to the cage. I could then simply remove the cage, pull back the leaf mold and the potatoes would be had w/o digging/bruising. I noticed that the plants I grew in the ground, w/o cages, were healthier than the caged plants. They also had less insect damage to their leaves. I had to water the caged plants. Harvesting was easier, but the caged plants produced noticeably smaller potatoes. I know this is not exactly what you are asking about, but I can't help but wonder if the difference between the caged and the soil-grown potato plants came down to plant nutrition; living soil vs. artificial growth medium. The caged potatoes were planted in soil, and the leaf mold had some nutrients to offer. I don't think it compares to the living, compost-enriched soil my dirt potatoes were grown in. I think that straw would also come up short of living soil. Tom - Original Message - From: Kirk McLoren To: biofuel@sustainablelists.org Sent: Friday, June 15, 2007 6:22 AM Subject: [Biofuel] straw cultured potato ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] straw cultured potato
you plant them in the same dirt but they have a foot or more of straw mulch. Pull aside the straw and there are your spuds. Roots are in the soil deeper yet. Kirk Thomas Kelly [EMAIL PROTECTED] wrote: Kirk, Last year I followed a friend's suggestion a friend's of growing potatoes in a cage. I planted some potatoes in the soil and put a wire cage around each plant. As the potato plants grew, I added leaf mold to the cage. I could then simply remove the cage, pull back the leaf mold and the potatoes would be had w/o digging/bruising. I noticed that the plants I grew in the ground, w/o cages, were healthier than the caged plants. They also had less insect damage to their leaves. I had to water the caged plants. Harvesting was easier, but the caged plants produced noticeably smaller potatoes. I know this is not exactly what you are asking about, but I can't help but wonder if the difference between the caged and the soil-grown potato plants came down to plant nutrition; living soil vs. artificial growth medium. The caged potatoes were planted in soil, and the leaf mold had some nutrients to offer. I don't think it compares to the living, compost-enriched soil my dirt potatoes were grown in. I think that straw would also come up short of living soil. Tom - Original Message - From: Kirk McLoren To: biofuel@sustainablelists.org Sent: Friday, June 15, 2007 6:22 AM Subject: [Biofuel] straw cultured potato ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk Keith Addison [EMAIL PROTECTED] wrote: The effects of greening rooftops are quite well known, there are enough examples for quite a clear picture to have emerged, showing a wide range of benefits and no apparent downside. The idea of greening rooftops could hit the big time any time, like the local food movement that's sweeping the world (and the media) right now. The foundation for that was already there, with the CSAs, city farms, local markets, community gardens of the last 30 years, then the Slow Food movement and so on. The work had been done, it was just waiting to happen. Greening rooftops could also be just waiting to happen. There's obviously a lot of synergy with the local food boom. The Journey to Forever garden at our first hq at the Beach House on Lantau Island in Hong Kong got me thinking a lot about rooftop gardens. We grew pumpkins and stuff in big baskets up old bamboo ladders onto the cement roofs of two outbuildings there that were hellish hot inside during summer, definitely a good thing to do. The whole garden was built on cement, or through it. I removed the cement for the sq foot beds and so on, but there was eight feet of sea sand mixed with builders rubble underneath (pre-plastic, 1960s rubble). Only one person ever asked where we got the soil. We made it, 12 deep, on top of the sand. Our tomatoes were 12 feet tall and very productive, everything was productive - we grew potatoes and sweet potatoes in bathtubs, and sweet potatoes on top of bare cement (one was 2 ft long). Large variety of crops. A whole ecology moved in, birds and bees and bugs that you don't find on beaches, frogs, butterflies, we found a small watersnake living in our pond (another bathtub). That small space produced a lot of great food! http://journeytoforever.org/garden.html Organic gardening: Journey to Forever organic garden http://journeytoforever.org/garden_con.html No ground? Use containers Etc. It wasn't that different from a rooftop garden. For anything more than an outhouse you need to know what loads roofs can take and so on, how much wet soil weighs, figure out water supply and drainage. But if it's built for people to walk on you should be able to green it effectively in one way or another. I'd like to have more and better resources at Journey to Forever on rooftop gardening. I'll do a search when I get the time. Any suggestions welcome. Best Keith A grass roof would be evaporatively cooled. Need less air conditioning. Average attic in summer is a sauna. Zeke Yewdall wrote: I don't see cows being kept on rooftops. Cow-sized staircases would just consume too much space! But I do see small dairy operations within easy walking distance of city centres. Dawie LOL. Probably not cows. But a goat could. And chickens. Milk and eggs. They eat the scraps from the rooftop garden and turn it back into protein for the humans and fertilizer for the garden. We need to start seeing our roofs as something other than wasteland helping generate a heat island and view it as a land area that we could use for food and energy production. ___ Biofuel mailing list Biofuel
Re: [Biofuel] straw cultured potato
ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk I have two small wooden barrels outside the kitchen with potatoes growing in them. They're about 25 litres, straight-sided old barrels with no bottoms, with potatoes planted at the bottom, just dumped on the ground with some straw and leaves and old compost over them, with more added as the stems grew higher. Now one is full, the other nearly full. The plants look great. I'll have two barrels of potatoes. Our potato beds (about 50 metres first crop) are planted on part of the poultry rotation, the seed potatoes laid on the ground and covered, and then more mulch, straw, leaves, weed cuts from the banks and so on added on top as the plants grow, until it makes a deep bed. We always get good harvests this way, and the potatoes improve the soil further. It seems it doesn't work with all varieties. Some varieties produce long rhizomes (which bear potatoes) and others have short rhizomes around the seed potato. For deep-mulch potatoes use the long rhizome types. According to the Organic Gardening Discussion List, Yellow Fin, Red Pontiac and all fingerling varieties have extended rhizome formation. All the varieties we've used in Japan have long rhizomes and perform well. Best Keith Keith Addison [EMAIL PROTECTED] wrote: The effects of greening rooftops are quite well known, there are enough examples for quite a clear picture to have emerged, showing a wide range of benefits and no apparent downside. The idea of greening rooftops could hit the big time any time, like the local food movement that's sweeping the world (and the media) right now. The foundation for that was already there, with the CSAs, city farms, local markets, community gardens of the last 30 years, then the Slow Food movement and so on. The work had been done, it was just waiting to happen. Greening rooftops could also be just waiting to happen. There's obviously a lot of synergy with the local food boom. The Journey to Forever garden at our first hq at the Beach House on Lantau Island in Hong Kong got me thinking a lot about rooftop gardens. We grew pumpkins and stuff in big baskets up old bamboo ladders onto the cement roofs of two outbuildings there that were hellish hot inside during summer, definitely a good thing to do. The whole garden was built on cement, or through it. I removed the cement for the sq foot beds and so on, but there was eight feet of sea sand mixed with builders rubble underneath (pre-plastic, 1960s rubble). Only one person ever asked where we got the soil. We made it, 12 deep, on top of the sand. Our tomatoes were 12 feet tall and very productive, everything was productive - we grew potatoes and sweet potatoes in bathtubs, and sweet potatoes on top of bare cement (one was 2 ft long). Large variety of crops. A whole ecology moved in, birds and bees and bugs that you don't find on beaches, frogs, butterflies, we found a small watersnake living in our pond (another bathtub). That small space produced a lot of great food! http://journeytoforever.org/garden.html Organic gardening: Journey to Forever organic garden http://journeytoforever.org/garden_con.html No ground? Use containers Etc. It wasn't that different from a rooftop garden. For anything more than an outhouse you need to know what loads roofs can take and so on, how much wet soil weighs, figure out water supply and drainage. But if it's built for people to walk on you should be able to green it effectively in one way or another. I'd like to have more and better resources at Journey to Forever on rooftop gardening. I'll do a search when I get the time. Any suggestions welcome. Best Keith A grass roof would be evaporatively cooled. Need less air conditioning. Average attic in summer is a sauna. Zeke Yewdall wrote: I don't see cows being kept on rooftops. Cow-sized staircases would just consume too much space! But I do see small dairy operations within easy walking distance of city centres. Dawie LOL. Probably not cows. But a goat could. And chickens. Milk and eggs. They eat the scraps from the rooftop garden and turn it back into protein for the humans and fertilizer for the garden. We need to start seeing our roofs as something other than wasteland helping generate a heat island and view it as a land area that we could use for food and energy production. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] straw cultured potato
Kirk, Gotcha I've already planted my spuds for this year (including sweet potatoes) the old fashioned way . mounding the dirt around the plant. Maybe the less-than-favorable results I got last year was because I used leaf mold rather than straw. Tom - Original Message - From: Kirk McLoren To: biofuel@sustainablelists.org Sent: Friday, June 15, 2007 11:22 AM Subject: Re: [Biofuel] straw cultured potato you plant them in the same dirt but they have a foot or more of straw mulch. Pull aside the straw and there are your spuds. Roots are in the soil deeper yet. Kirk Thomas Kelly [EMAIL PROTECTED] wrote: Kirk, Last year I followed a friend's suggestion a friend's of growing potatoes in a cage. I planted some potatoes in the soil and put a wire cage around each plant. As the potato plants grew, I added leaf mold to the cage. I could then simply remove the cage, pull back the leaf mold and the potatoes would be had w/o digging/bruising. I noticed that the plants I grew in the ground, w/o cages, were healthier than the caged plants. They also had less insect damage to their leaves. I had to water the caged plants. Harvesting was easier, but the caged plants produced noticeably smaller potatoes. I know this is not exactly what you are asking about, but I can't help but wonder if the difference between the caged and the soil-grown potato plants came down to plant nutrition; living soil vs. artificial growth medium. The caged potatoes were planted in soil, and the leaf mold had some nutrients to offer. I don't think it compares to the living, compost-enriched soil my dirt potatoes were grown in. I think that straw would also come up short of living soil. Tom - Original Message - From: Kirk McLoren To: biofuel@sustainablelists.org Sent: Friday, June 15, 2007 6:22 AM Subject: [Biofuel] straw cultured potato ever see potatoes grown in a foot of straw? They claimed no digging to harvest tubers. Since the roots go down do they decide to fruit in the first foot of root? Probably since next years potato comes from the fruit. Kirk Keith Addison [EMAIL PROTECTED] wrote: The effects of greening rooftops are quite well known, there are enough examples for quite a clear picture to have emerged, showing a wide range of benefits and no apparent downside. The idea of greening rooftops could hit the big time any time, like the local food movement that's sweeping the world (and the media) right now. The foundation for that was already there, with the CSAs, city farms, local markets, community gardens of the last 30 years, then the Slow Food movement and so on. The work had been done, it was just waiting to happen. Greening rooftops could also be just waiting to happen. There's obviously a lot of synergy with the local food boom. The Journey to Forever garden at our first hq at the Beach House on Lantau Island in Hong Kong got me thinking a lot about rooftop gardens. We grew pumpkins and stuff in big baskets up old bamboo ladders onto the cement roofs of two outbuildings there that were hellish hot inside during summer, definitely a good thing to do. The whole garden was built on cement, or through it. I removed the cement for the sq foot beds and so on, but there was eight feet of sea sand mixed with builders rubble underneath (pre-plastic, 1960s rubble). Only one person ever asked where we got the soil. We made it, 12 deep, on top of the sand. Our tomatoes were 12 feet tall and very productive, everything was productive - we grew potatoes and sweet potatoes in bathtubs, and sweet potatoes on top of bare cement (one was 2 ft long). Large variety of crops. A whole ecology moved in, birds and bees and bugs that you don't find on beaches, frogs, butterflies, we found a small watersnake living in our pond (another bathtub). That small space produced a lot of great food! http://journeytoforever.org/garden.html Organic gardening: Journey to Forever organic garden http://journeytoforever.org/garden_con.html No ground? Use containers Etc. It wasn't that different from a rooftop garden. For anything more than an outhouse you need to know what loads roofs can take and so on, how much wet soil weighs, figure out water supply and drainage. But if it's built for people to walk on you should be able to green it effectively in one way or another. I'd like to have more and better resources at Journey to Forever on rooftop gardening. I'll do
