permaculture

[pfaf@scs.leeds.ac.uk]

Jack,
        It features in the Plants for a Future database,
although theres not much info.

NAME Silphium perfoliatum | Cup plant | Compositae | 
REF  43, 200 | L. | 1 | 0
TYPE Perennial |  | 2.5 |  | 4
RNGE Eastern N. America - Ontario to South Dakota, south to Georgia, 
Missouri and Oklahoma.
HAB  Rich woods, thickets, river banks and prairies[43].
HZRD None known
SOIL LMH | 0 | ANB | 0 | 0 | 0 | 0 | 0
POSN SN | M |  |  | 0 | 0 | 0 | 0
GROW  | 0 | 0
TIME  | 7 | 8
FLWR H | Insects | 
EDIB None known
MED  The root is alterative, antispasmodic, diaphoretic, febrifuge, hepatic, 
stimulant and tonic. It is used in the treatment of liver and spleen 
disorders[4, 61].
USE  None known
CULT Succeeds in any ordinary garden soil[1]. Prefers a deep moisture 
retentive moderately fertile soil that is not too nitrogen rich, in sun or 
dappled shade[200].
Hardy to at least -25°c[187].
Plants have a deep and extensive root system which makes transplanting 
difficult.
PROP Seed - best sown as soon as it is ripe in a greenhouse[200]. Prick out 
the seedlings into individual pots as soon as they are large enough to handle 
and plant them out in the summer.
Division in spring[188]. This is very difficult due to the deep and 
extensive root system.

details of the hyroglyphs can be found at
        http://www.scs.leeds.ac.uk/pfaf/D_ascii.html

                Hope its of use

                        Rich