# How Deep Do You Plant Cleome Seeds in Iowa?
The loamy prairie soils widely encountered across Iowa provide an excellent environment to sow and raise spider flower (Cleome hassleriana). This fast-growing annual blooms, sets and drops seeds, causing sprouting new plants to pop up later in summer. It should be noted that seed planting depth for the spider flower is universal, and not specific to Iowa.
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Features
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Choose a sunny garden area with a crumbly, fine-textured soil. Spider flower seeds are tiny and must be sown under no more than 1/8 to 1/4 inch of fine soil particles. Do not plant seeds too deeply. Alternatively, lightly scratch seed into the soil surface rather than creating any furrow.
Considerations
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Spider flower seed tends to germinate better if first stratified with cold. Place seeds in the refrigerator for 5 to 7 days, and then place in soil that is 60 to 65 degrees Fahrenheit. Overly warm soil diminishes seed germination.
Time Frame
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In Iowa, sow spider flower outdoors after the threat of frost in spring. In southern counties, sow around May 1; in northern Iowa, wait to sow seeds until after May 10.
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Previous:
Growing Annuals
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