Date of Visit: July 4th, 2010
Present: Heidi Lam
Time: 3:30pm
Weather: Sunny
Weather Condition: Recent Sun and Heat
Photos taken: Yes
Months since installation: 6 months
- Sedum coverage is approximately 85%. Some bare spots have been observed.
- Seams between sedum mats is no longer visible. Mats have merged together nicely.
- Sedums have come out of dormancy and are in excellent health.
- Very little mosses were found and removed.
- No grass or weeds were found.
- Flowers are in full bloom.
- Some redness has been observed on the sedums. May indicate that sedum is under stress.
- Some sedums are growing near the edges of the flagstone pavers. Some sedums may have been transported by rainwater run-offs or wind.
- Habitat Eco Pod in great condition. Plants are out growing its existing pot. Soil needs to be replenished. No rooting into insulation.
- Native Eco Pod in satisfactory condition. Soil needs to be replenished. No rooting into insulation.
- Lots of bees have been observed.
- Ballast rocks and flagstone pavers work well as weights and remain along the edges.
A pleasure to read your blog, Heidi. Nice to know that the sedums are doing well. They have really turned green and growing beautifully. S. sexagulare are flowering profusely, which is normal for this time of the year. It will be followed by white and then yellow and pink flowers until the end of summer. Bees love the sedum flowers and it is a wonderful way to bring them back into the city.
The sedums have really filled in and it is great to know that the seams are no longer visible. I amd happy to know that there are no weeds. The Xero Flor green roof system is designed to be thin and dry to discourage weed growth and it is working very well. Mosses have the ability to clean the air and retain rainwater to reduce runoff. They are the “good guys” and very much part of the plant community on the roof. Please leave them on the roof so they can help clean the air. Thank you!
Did you get a chance to fertilize the roof with the slow release organic fertilizer this year? It will help give the sedums a little boost and should be applied once a year. The recent summer heat and drought can be challenging for the sedums especially there is only one layer of water retention fleece in the system to meet the loading requirement. If you have time, please give them a deep watering (about 25 mm) . The sedums will apprecaite the drink and reward you even more beautiful flowers!
Thank you and keep up the good work!