PLANT COMPATIBILITY GUIDE

French Marigold Compatibility

French Marigold can work well with other plants when light, moisture, soil, mature size, and growing season are planned together. Use this guide as a starting point, then check your specific combination in the plant compatibility checker.

French Marigold growing requirements

Scientific nameTagetes patula
SunlightFull Sun
WaterLow
Soil pH6–7.5
Spacing8 inches
Growing seasonWarm

The ultimate general garden companion flower. Exudates alpha-terthienyl from roots to control root-knot nematodes.

Plants commonly compatible with French Marigold

These plants have overlapping requirements or established planning relationships in the database. Compatibility still depends on cultivar, climate, bed design, and spacing in your specific garden.

Plants to consider carefully near French Marigold

Review pairings involving French Marigold for shared family disease pressure, mature size, and differing seasonal timing. A database warning is a reason to adjust timing, irrigation, spacing, or bed location — not an absolute rule for every garden. Always check local disease pressure and growing conditions before making a final decision.

French Marigold compatibility factors

Sunlight and placement

French Marigold requires Full Sun. Choose neighbors with the same or a compatible light requirement so neither plant creates unwanted shade for the other. Taller plants should go on the north side of the bed to avoid shading French Marigold during peak growing hours.

Water and irrigation

French Marigold has Low water needs. When pairing it with plants that have very different moisture requirements, consider drip irrigation with individual emitters, or group plants with matching water needs in the same bed zone. Overwatering for a thirsty neighbor or underwatering for a drought-tolerant one will both cause stress.

Soil, pH, and spacing

Prepare soil within the shared pH range (French Marigold prefers 6–7.5) and leave at least 8 inches between plant centers. Compact, loose, or amended soil may be specifically important for French Marigold depending on its root depth and spread requirements.

Plant family and seasonal timing

Related crops (same plant family) may share disease vectors, making bed rotation an important annual practice. French Marigold is best planned for a Warm-season planting schedule. Pairing it with plants that peak in a different season may require succession planting or careful timing to make the combination practical.

Frequently asked questions about French Marigold compatibility

What grows well with French Marigold?

Plants with overlapping sunlight (Full Sun), similar water needs (Low), a compatible soil pH (6–7.5), and manageable mature size tend to work best alongside French Marigold. Use the compatibility checker to test specific combinations.

What should not be planted near French Marigold?

Review pairings involving French Marigold for shared family disease pressure, mature size, and differing seasonal timing. These are planning considerations, not absolute rules. Local conditions, disease pressure, and spacing adjustments often determine whether a pairing works in a specific garden.

How far apart should I plant French Marigold?

The database recommends at least 8 inches between French Marigold plant centers. Use the larger spacing requirement when pairing with a plant that needs more room.

Is French Marigold a good companion plant?

That depends on the specific neighbor. French Marigold has documented compatible pairings in the database, but compatibility is always relative to growing conditions, cultivar, and garden design. Check the compatibility checker for a full factor-by-factor comparison.

Check French Marigold with another plant

Compare French Marigold with two to five plants and get a detailed explanation of their compatibility based on sunlight, water, soil, spacing, roots, nutrients, and growing season.

Check Compatibility