Metasequoia glyptostroboides (common name Dawn Redwood). The existence of this tree was known based on preserved specimens such as those in the Canadian Arctic (50 million old specimen), and was thought to be extinct until 1941 when a few trees were discovered in China. Arnold Arboretum distributed the seeds in 1948. It is a fast growing deciduous conifer and tolerates wet feet and drought reasonably well in my garden. All my trees are from the same batch of 3 gal plants, and the tallest one is likely more than 12 m (rough estimate) high, after more than 18 years.
Metasequoia glyptostroboides ‘Gold Rush’
This dawn redwood was more commonly known as ‘Gold Rush’ or ‘Ogon’, but the name was recently changed to ‘Golden Oji’. Apparently, it was grown from irradiated seed by New Oji Paper Co. Ltd. in Japan, and the company was recently granted a US plant patent for the name ‘Golden Oji’, the other names are now simply Trade names.
Metasequoia glyptostroboides ‘Hamlet’s Broom’
It is a dense light green mound of soft foliage, and is expected to be slow growing (~0.24 m/yr).
Metasequoia glyptostroboides ‘Kools Gold’
This dawn redwood is in its first season in my garden. So far, it appears the nice cool gold colour in spring faded to greenish colour in the summer, and is suffering in full sun.
Metasequoia glyptostroboides ‘Miss Grace’
This dawn redwood is a graceful beautiful.
Metasequoia glyptostroboides ‘North Light’
It is probably better known as ‘Schirrmann’s Nordlicht’ in Europe where it originated. The creamy white foliage is outstanding, and it is expected to be slow growing. However, the creamy colour is very subdued in 2012. I hope it is because of the unusual weather year.
Metasequoia glyptostroboides ‘Snow Flurries’
My plant is too young to make much observation. However, it appears to grow in height really fast in one season.