Answer: There is a perennial type of sweet pea called Lathyrus latifolius. The roots of this plant are perennia, sprouting new foliage every spring. It will also reseed and can become invasive if not controlled by removing the seed pods before they mature. Of course if you want it to spread, you can allow the pods to broadcast their seeds before cutting the foliage back in the autumn. Burpee's catalog has a number of transplants for sale. You can request a copy of the newest catalog by phoning toll-free (800) 888-1447, or visiting the website at http://www.burpee.com. Seeds of perennial plants are available through the catalog, as well. Perennials will last for several years, and many will self-sow or grow large enough to be divided every few years. Hope this information helps you plan your garden!
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