5,7-Dihydroxy-3 ethylchromone and its 7-O-methyl ether were reported as phytoalexins of Lathyrus odoratus (22) possessing fungitoxicity against Helminthosporium carbonum.
If you have a cottage garden and want some scent, there are some fantastic new varieties of sweet pea, including lathyrus odoratus Duo Magenta (Unwins), a two-tone variety of pink which is easily grown up a wigwam for wonderful colour.
Sweet peas do best in moist but well-drained soil in sun and good varieties include lathyrus odoratus Beaujolais, with its red wine colour and fine bouquet, while L.