Insect pests are rarely a problem, but you may find Japanese beetles, mites, and aphids. Drop the beetles into soapy water, and treat mites and aphids with insecticidal soap. The largest group, the garden zinnias, are listed first. They are grouped by height and ranked from shortest to tallest. Other kinds of zinnias follow, alphabetically by species name, and are similarly listed by height.
Prices vary widely, so check several catalogs.
For instance, seeds of the new Profusion series cost about 6 cents each in one catalog and nearly twice as much in another. Also note the difference between a mix and a formula mix. Double flowers, 3-4 in., coral, ivory, pink, rose, scarlet, and yellow. AAS winners include 'Pink Peter Pan' and 'Plum Peter Pan' in 1971, 'Scarlet Peter Pan' in 1973, 'Orange Peter Pan' in 1974, 'Cream Peter Pan' in 1978, 'Gold Peter Pan' in 1979, and 'Flame Peter Pan' in 1980. Scarlet Dasher' won a 1982 Fleuroselect Bronze medal and 1984 Royal Horticultural Society Award of Merit.