Give your garden and outdoor living spaces a shot of steady, season-long color by planting marigolds. This popular annual flower is a garden favorite because they are easy to care for, grow well from seeds, and attract pollinators. Many varieties of marigolds can also help repel root-knot nematodes, microscopic worms that live in the soil and can damage vegetable and fruit plants. Here is everything you need to know to grow marigolds.
Before planting marigolds, decide which type you want to grow. The most commonly grown marigolds are African (also called American or Aztec) and French types. African marigolds have large flower heads (up to 5 inches across) on plants that grow from 10 to 36 inches tall, making them good for fresh cutting. French marigolds are smaller and bushier, with flowers up to 2 inches across on plants that are 6 to 18 inches tall. They are excellent for planting among taller plants in need of pollination.
When planting marigolds, choose a spot in full sun. In warmest regions, provide protection from the sun during the hottest part of the day. As you ponder where to plant, understand that these annual flowers crave fertile, well-drained soil. Marigolds planted in heavy clay soil that doesn’t drain well are usually not productive.
If you’re growing marigolds in planting beds, improve soil drainage and add nutrition by mixing 3 inches of Miracle-Gro® Garden Soil for Flowers into the top 6 to 8 inches of native soil. For best results when growing marigolds in containers, choose Miracle-Gro® Potting Mix, which is lightweight, fast-draining, and full of nutrition. In raised beds, blend equal parts garden soil and potting mix for just the right soil composition, or make it easy by using Miracle-Gro® Raised Bed Soil.
When planting marigolds, you have two choices: seeds or young plants. Whichever you choose, be sure to wait to plant until after all danger of frost has passed. Marigolds grow quickly from seed sown directly into planting beds, but you can get a head start by sowing seeds indoors in Miracle-Gro® Seed Starting Potting Mix about 6 to 8 weeks before the average last spring frost. It’s important to get African marigolds into the soil as early as possible once the weather warms, because they take longer to mature and flower than French marigolds do. In planting beds, space African marigolds 10 to 12 inches apart, while French marigolds should be 8 to 10 inches apart. If you’re planting marigolds into containers, use a pot that’s at least 10 inches across for African and larger French types. Dwarf French marigolds can grow in a 6-inch container or even a traditional strawberry jar with pockets. Immediately after planting marigold seedlings, water plants thoroughly.
If you’re picking marigolds for bouquets or drying, cut blossoms in the morning or late afternoon. Harvest flowers for either use when they are fully open. Choose newly opened flowers for edible uses.
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