How to Plant African Marigolds

Prepare the sunny patch of soil after winter's final frost. This involves breaking up the dirt with a pitchfork and testing the soil. African marigolds favor soil with a pH between 6.2 and 6.5, and a soil testing kit will be able to tell you the pH values of your soil.

Amend your little patch if the soil is not within range. You will need to add agricultural lime if the soil pH is below 6.2 and peat moss for a pH anywhere above 6.5. Follow the directions printed on the amendment's manufacturing label for application methods and allocation totals.

Remove the African marigolds from their nursery pots. Simply slide them out, leaving the dirt and roots intact. Bury African marigolds in holes equal to the size of their root-balls. These babies need plenty of room, so plant them approximately 18 inches apart. Make sure all foliage is above the soil line and pat the dirt around the stems to remove any trapped air.

Give the African marigolds a good soaking of water from a garden hose after planting. Soak the soil to 1 inch and maintain that moisture depth throughout the growing season. Stick your finger into the soil now and then to check for moisture. If the soil feels moist at the 1 inch depth (especially if it has rained recently) there is no need to water. If the soil feels dry, turn on the spigot.