Looking to add a pop of color to your garden? Learn all about how to grow zinnias, plus tips for seed starting, prolonging bloom time, and enjoying them as cut flowers. Here's what you need to know.
Native to South America, zinnias have a USDA hardiness zone of 3-10 and depending on the variety can bloom from spring through fall. They range in height from 8 inches to 4 feet and about 6 inches to 1.5 feet wide.
Light ConditionsZinnias prefer full sun, so choose a spot in your garden that receives at least 6-8 hours of sun per day.
SoilThey also like well-drained soil that is moist and rich in organic matter. Zinnias are not very finicky where soil pH is concerned either as they can grow in soil that is acidic, alkaline, and neutral.
When to PlantAs an annual, zinnias can be planted directly in the ground after the last frost date in your area.
WateringZinnias need regular watering, especially during hot, dry weather.In general, water deeply once a week at the base of the plant in the early morning. Water more often if there is excessive heat and the soil is dry to the touch.
FertilizerZinnias don’t require a lot of fertilizer, but a light application of a balanced fertilizer (such as 10-10-10) at planting time can help encourage healthy growth and blooming. Use a slow release fertilizer so it's set and forget.
DeadheadingTo encourage zinnias to produce abundant blooms, deadhead spent flowers regularly. This will also help prevent the plants from going to seed too quickly.
Visit the blog to learn more about how to grow zinnias and enjoy the flowers.