Marigold
Tagetes patula
Root exudates of Tagetes patula suppress root-knot nematodes in surrounding soil — making marigold one of the few flowers with documented companion-planting benefits for vegetables.
How to care for marigold
Deadhead spent flowers weekly to keep marigolds blooming nonstop until frost. Avoid overwatering — soggy soil causes stem rot and reduces the root exudates that repel nematodes.
Garden uses & design ideas
Best garden use
Use it where you want fast seasonal color in containers, walkway edges, or gaps between slower permanent plants.
Pair it with
Tomato, Pepper, Basil make easy companion choices because they share similar light, water, or visual texture needs.
Layout tip
Match it with full sun exposure, place it in a moderate-water bed where soil can stay evenly damp but not soggy, and check USDA zones annual everywhere (frost-tender) before planting. Use the garden planner to test spacing around its mature size: 6-18 in tall and wide.
Gardener note — Double-check local invasive, edible, and toxicity guidance with your county extension office before planting around pets, children, or natural areas.
Companion plants
Marigold grows well alongside these — similar light, water, and texture needs.
Common pests & problems
Where it grows best
Native to Mexico and Central America; thrives in USDA hardiness zones annual everywhere (frost-tender).
Frequently asked about marigold
What USDA zones does Marigold grow in?+
Marigold is hardy in USDA zones annual everywhere (frost-tender). Outside these zones, it can usually be grown indoors or as a seasonal annual.
How much sun does Marigold need?+
Marigold prefers full sun. Place it where it gets that light most of the day for best growth and flowering.
How often should I water Marigold?+
Marigold has moderate water needs. Keep soil consistently moist but not soggy. Deadhead spent flowers weekly to keep marigolds blooming nonstop until frost. Avoid overwatering — soggy soil causes stem rot and reduces the root exudates that repel nematodes.
How big does Marigold get?+
Marigold reaches a mature size of 6-18 in tall and wide. Growth rate is fast, so plan spacing accordingly when planting.
What plants grow well with Marigold?+
Marigold pairs well with Tomato, Pepper, Basil, Zucchini, Roses. These companions share similar care requirements and don't compete aggressively for resources.
What pests affect Marigold?+
Common Marigold problems include spider mites; aphids; slugs. Catching early signs in routine inspection prevents most damage.
When does Marigold bloom?+
Marigold blooms in summer to first frost in yellow, orange, red. Deadheading spent flowers (where applicable) often encourages a longer bloom window.
Design a garden with marigold in minutes
Drag plants into a 3D space, walk through it, or upload a photo and let AI redesign it. Test spacing around its mature size before you plant.
More plants to design with
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