This section is from the book "The Florist And Garden Miscellany". Also see: All New Square Foot Gardening: Grow More in Less Space!.
In last month's Florist this is described amongst the new plants as being "probably hardy." I think there is not the least doubt of it, as two plants of it have stood here all the winter in the open border without the least protection. I examined the roots as soon as the severe frosts we had in January last were out of the ground, and found them quite healthy, and apparently in an active state. Since then they have made shoots two inches long; the nine degrees of frost we had on the morning of the 5th of March did not appear to affect these shoots in the least.
Royal Botanic Gardens, Kew, William Allan.
March 8th, 1850.