Michigan State University Extension
Home Horticulture - 01700969
There are many varieties of Zinnia with widely varying heights and flower colors. They may be as short as six inches or as tall as three feet. The plants are spaced eight to twelve inches apart and flower colors can be any color except for blue. They are tolerant of all but wet soils and need exposure to full sun. Plants producing flowers with high centers surrounded by only one or two rows of petals should be discarded. Tall varieties may be pinched when young to encourage branching. Old flowers are removed to encourage continued flowering.
The seeds are usually planted directly into the garden. If planted indoors the seedlings become spindly, especially if started too early. The seed germinates in one to two weeks at temperatures between 70 and 80 degrees.
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|Zinnia sp. - 54K||Zinnia sp. - 63K|
|Zinnia sp. - 60K||Zinnia spp. - 67K|