If I cut back my zinnias and marigolds at the end of summer, will they grow back in the spring? Or do I have to plant seeds every year?
Gardening With Annuals
Certified GKH Gardening Expert
Both of these plants are considered annuals and will not come back in spring. However, seeds that have dropped will oftentimes surprise you each spring with new sprouts, though maybe not where you plan for them to be. Of course, you can also save the seeds from the blooms you've cut back and sow them yourself too. These articles will help with planting and growing marigolds and zinnia: https://www.gardeningknowhow.com/ornamental/flowers/marigold/growing-marigold-flowers.htm, https://www.gardeningknowhow.com/ornamental/flowers/zinnia/growing-zinnia-flowers.htm