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Re: Silphium, Cup Plant
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