CLOCKWISE FROM LEFT: Color Magic is just one of the varieties that flourish in Lynn Smith's rose garden .... Dwarf marigolds help protect rose roots from nematode attack .... This cluster of perfect blooms is ample reward for the rose lover's diligent garden planning, bed preparation, and plant care. The variety shown is Circus .... This lovely example fully lives up to its name, First Prize .... Grandiflora roses?which can attain heights of 8 to 10 feet?are good choices for tall hedges and background plantings. This one's called OW .... Parsley sown near the miniature Puppy Love helps the plant to ward off bugs (by the way, this specimen won first place in four straight flower shows) . ... An almost insect-free rose garden . ... Hardy and disease-resistant Pristine.