Seeds of four species of Umbelliferae [Anthriscus sylvestris (L.) Hoffm., Conium maculatum L. Daucus carota, L. and Heracleum sphondylium L.] were sown separately into plots of grassland given two ...
Now is the time to grow garden umbellifers from seed. They are ideal for naturalistic planting and are easy to grow. Try the late spring perennials Anthriscus sylvestris 'Ravenswing', with lacy purple ...
- coarse erect biennial Old World herb introduced as a weed in eastern North America ...
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