How deep to plant zinnias

Plant zinnia seeds 1/4 inch deep, and cover them with vermiculite.

The depth: Plant the seeds 1/4 inch deep and cover with vermiculite.

For direct seeding, make sure the soil temperature is at least 70 degrees Fahrenheit.
Transplants can be set out once the soil warms to 60 degrees.
Soil must be well-drained.
Zinnias prefer soils with a pH of 5.5 to 7.5.

Planting depth varies with soil type and variety; your local extension office is the closest authority.

Grounded in: extension.umn.edu. Every window and number follows sentences verified verbatim on those pages.

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