PlantWhy

Marigold

Tagetes spp. · Flower

A tough, sun-loving annual with pompom or daisy-like flowers in yellow, orange and red. It is one of the easiest plants to grow from seed and blooms from early summer until frost. Many gardeners tuck it between vegetables for color.

Marigold
Photo: CC BY-SA 3.0 · Wikimedia Commons
💧WaterWhen the top 1 in is dry, 1–2 times a week (estimated)
☀️LightFull sun, 6–8 hours
🐾PetsMildly toxic

Care at a glance

Light
Full sun, 6–8 hours
Water
When the top 1 in is dry; tolerates short dry spells
Soil
Average, well-drained soil, pH 6.0–7.0
Temperature
Best 65–85 °F; killed by frost
Spacing
8–12 in for small types, 18–24 in for tall ones
Container
At least 1 gallon, 6–8 in deep per plant
Bloom
Blooms about 8 weeks after sowing until frost (estimated)
Lifespan
Annual

When?

Sow outdoors after the last frost, once the soil has warmed, or start indoors 4–6 weeks earlier. Plants often reseed themselves in mild gardens (estimated).

Step by step

  1. Sow seeds 1/4 in deep; they sprout in 4–7 days in warm soil.
  2. Thin seedlings to the spacing for your variety.
  3. Water at the base and let the surface dry between waterings.
  4. Skip rich fertilizer; too much feeding gives leaves instead of flowers.
  5. Deadhead faded flowers every few days to keep new buds coming.
  6. Stake tall varieties in windy spots.
  7. Save seed from dry flower heads at the end of the season if you like.

Common problems

Gray fuzzy mold on flowersBotrytis in damp weather; remove affected blooms and space plants wider.
Fine speckling and webbing on leavesSpider mites in hot, dry weather; rinse plants with water.
Seedlings chewed overnightSlugs; check in the evening and use barriers.

Pets

Listed by the ASPCA as mildly toxic to cats and dogs; eating it may cause stomach upset, and the sap can irritate skin. Keep pets from chewing it; if in doubt, ask your vet.

Related tools

Planting calendarSoil and mulch calculator

Similar plants

PetuniaTomatoSunflower

Sources

This page is general guidance; no pesticide doses are given.