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Alfalfa. Isn't that the stuff that gets made into hay and is fed to livestock?  Turns out that's only part of the story. Alfalfa can also be a big boon to gardeners - by making their roses happier and healthier.
It's a crop with a long history. Because of acid soils and high humidity along the Atlantic seaboard, early colonists couldn't grow alfalfa well and nearly abandoned it. But it came west with the Gold Rush and flourished, and today the crop has become so popular in California that it is known in many agricultural circles as the "Queen of the Forages." Besides being praised in agriculture, alfalfa has become a hit in horticulture, too, particularly in rosedom. As a mulch for garden roses, it does far more than retard weeds.  As it disintegrates, alfalfa yields an alcohol, triacontanol, to which roses take a particular shine. When it reaches their roots, roses act as though they've been aching for a stiff drink and manifest their appreciation with basal breaks, rosarian lingo for new growth emanating from the bud union (the landmark created by budding hybrid roses onto rootstock). Rosarians live for basal breaks; they're the ticket for increased vigor and better production. An annual mulching with alfalfa nearly guarantees such spirited developments.
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