Medical Definition of absolute refractory period. : the period immediately following the firing of a nerve fiber when it cannot be stimulated no matter how great a stimulus is appliedâcalled also absolute refractory phase; compare relative refractory period.
Prior to planting, soak the okra seeds in water for 12 to 18 hours to soften its hard seed coat. Soaking aids moisture absorption and germination. Plant okra in the spring or early summer once the threat of frost has passed.hoose a garden spot where its shade will not harm other sun loving plants. Sow the seeds one inch deep in rows that are three feet apart. The seeds generally germinate in two to 12 days. Okra will grow in many soil types, so mulch and fertilize as needed.
To plant in rows, space seeds about 6 inches apart in a shallow trench between 1 and 2 inches deep. In sandy soil, 2 inches deep is better. Cover and keep watered until seeds sprout in 7 to 10 days. When first true leaves appear (the second set of leaves); thin plants to about 2 feet apart. Depending on the variety, sunflowers will mature and develop seeds in 80 to 120 days. Sow a new row every 2 to 3 weeks to enjoy continuous blooms until the first frost. For maximum seed production space rows 2 to 3 feet apart.