Eight plants to grow with cosmos (2024)

FAQs

Eight plants to grow with cosmos? ›

Anchor the cutting garden with multiple varieties of cosmos. You may also want to include other annuals like zinnias, sunflowers, larkspur, bells of Ireland, and bachelor's buttons. Because cosmos flowers are so easy to grow, they make a fun choice for a children's garden.

Anchor the cutting garden with multiple varieties of cosmos. You may also want to include other annuals like zinnias, sunflowers, larkspur, bells of Ireland, and bachelor's buttons. Because cosmos flowers are so easy to grow, they make a fun choice for a children's garden.

Cosmos attract butterflies, lacewings, and hoverflies. You can plant cosmos to flower right along with your tomatoes all summer.

Cosmos is a popular companion plant for zinnias due to its complementary growth habits and ability to attract pollinators.

Plant Snapdragons among other reliable self-seeding annuals for a low-maintenance and naturalistic garden design. Some great options include nasturtium, cosmos, zinnias, and calendula, which all grow well with Snapdragons and bloom all summer long.

Cosmos should be planted 9-12 inches apart, and ideally supported with horizontal netting. If you don't plan to use netting, space them a bit closer so they help support one another (although tighter spacing can hasten the spread of disease).

They are happy planted in moderately poor soil. Plant the cosmos in full sun and water well, then add a mulch to help conserve moisture. Stake and tie plants if necessary during the growing season and don't forget to water regularly as they grow.

To Improve the Harvest

Partner annual flowers and herbs like cosmos, zinnia, borage, and basil with cucumbers to attract pollinators to the vegetable garden.

Marigolds

These flowers have been grown with tomatoes for years as gardeners believed that the marigolds deterred harmful insects. Recent studies have confirmed that the gardeners were right. Marigolds are particularly good at controlling whiteflies.

Can you plant cosmos close together? ›

Plants get very bushy and prefer a little extra room to spread out, so space plants 12 to 18 in (30 to 46 cm) apart. Once in the ground, cosmos will grow rapidly, so be sure to stake them early, while they are still young.

Sow and Plant

Plant seeds in prepared soil about 2 inches (5 cm) apart and one-half inch (1 cm) deep. Thin to 8 inches (20 cm) apart in all directions for dwarf varieties; allow 12 inches (30 cm) between very tall varieties.

Even the planting process is easy. I put down fresh mulch, then sprinkle the Zinnia seeds where I want them. I don't worry about spacing or anything, I just scatter them.

Pair hot peppers with annual flowers and herbs like cosmos, zinnia, borage, and basil to increase visits from pollinators and pepper yields. Interplant beans with peppers to maximize pepper growth and increase yield. For best results, sow bean seeds one week before transplanting pepper seedlings.

So, if you're looking to create a summer border that offers both visual drama and a variety of textures and colors, this combination of Dahlias, Ammi visnaga, Echinacea purpurea, and Cosmos is a winning choice.

Cosmos grows quickly and can reach heights of up to 6 feet, making it a perfect choice for filling in bare spots in your garden. Cosmos flowers are also excellent companions for vegetables because they attract beneficial insects like ladybugs while repelling destructive pests like tomato hornworms.

Sow cosmos seed indoors between March and April for the longest flowering season; plants should begin to bloom from late June or July and will continue until the frosts. Plants can also be direct-sown outdoors but will start to flower later.