Green Roof Experiential Learning – Spring 2015 Blog 1 by Nicole Forbes

I’m back again for my second semester working on the Langford Green Roof Project! It has been an awesome experience to be a part of this while watching the plants grow and new ideas transform. I really have not got to do too much yet this semester as weather has been bad and I was in Costa Rica for a week, but weather is supposed to be getting better so hopefully next blog I will have more to report. Zane and I will also be presenting a poster at Student Research Week after Spring Break which should be a very rewarding experience. I will be sure to get pictures for my next blog!

My first day back on the roof was really cool to see. I assumed with the weather being so cold over the winter break that most of the plants would not fare so well but I was thankfully mistaken. Many of the plants grew very well on the roof modules. The lettuces and herbs did very well (except for the bell pepper basil, all of that died out for some reason), especially the parsley. I think a roof of parsley and mint would grow exceptionally well here in Texas year round and would create a beautiful green garden that can be used for cooking also! The living wall was disappointing, however. Mostly everything died out or is looking very bleak, with exception to the garlic and shallots which seem to be doing fairly well. I am hoping some of the mint recovers and grows back, but only time will tell.

It was also very interesting to see how some crops did well in certain spots, while in others they did not survive. I saw this with the turnips, beets and red kitten spinach. There are many reasons as to why this occurred, but I lean more towards three explanations:

  1. Irrigation – Something is going on with the irrigation system and plants are being watered unevenly
  2. Sunlight – Different spots on the roof get different amounts of sunlight which is affecting growth rates
  3. Nutrition – Some spots received more fertilizer than others

As we approach the planting season for summer crops, these are the crops that I think we should plant:

  1. Herbs – I think we should plant more of the herbs that did well (parsley and mint) and I think we should also try cilantro and dill, both of which grow very well at the Howdy Farm on campus and I would be curious to see if they do well on the roof also.
  2. Broccoli – I know we planted some in the fall but I am curious to see if it would do better in the spring as broccoli likes direct sunlight (which there is plenty of on the roof) and has a moderate maturity rate.
  3. Cabbage – With how well the lettuces did, I really would like to see how cabbage fairs. However, cabbage has a much longer maturity rate so I am not sure if that will affect the decision.
  4. Bush beans – These mature quickly and I think they would be really cool to try and grow.
  5. Lettuce and spinach – These did well so I think we should try them again in the spring to see if they grow well during this time also.

 

Below are pictures from the first day back on the roof!

Nicole photo 1Nicole photo 2

Nicole photo 3

 

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