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PlantSnap
Plant Care
Signet marigold
(Tagetes minima)
Also Known As
Signet marigold, French marigold, Small marigold
About This Plant
Tagetes minima is a species of the marigold plant. It is an annual herb that produces small yellow or orange flowers. The plant grows up to 30 cm tall and has a strong odor.
Plant Care Instructions
Outdoor Size Range
6-12 inches (15-30 cm)
Light Requirements
Tagetes minima requires full sun to partial shade. It can tolerate some shade, but the plant will produce fewer flowers.
Humidity Needs
Tagetes minima prefers moderate to high humidity levels. It can tolerate dry air, but it may not flower as well.
Fertilizing Schedule
Fertilize Tagetes minima with a balanced fertilizer every two weeks during the growing season. Use a fertilizer that is high in phosphorus to encourage flowering.
Pruning Guidelines
Pinch back the tips of the plant to encourage bushy growth and more flowers. Deadhead spent blooms to encourage more flowers.
Common Pests and Diseases
Tagetes minima is relatively pest-free, but it may be susceptible to aphids, spider mites, and whiteflies. Use insecticidal soap to control these pests.
Indoor Size Range
6-12 inches (15-30 cm)
Watering Schedule
The soil should be kept moist but not waterlogged. Water the plant when the top inch of soil feels dry to the touch.
Temperature Range
The plant prefers warm temperatures between 60-80°F (15-27°C). It can tolerate higher temperatures but may not flower as well.
Growing Season
Tagetes minima is an annual plant that blooms from late spring to early fall.
Growing Difficulty Level
Tagetes minima is an easy plant to grow and care for. It is a good choice for beginner gardeners.
USDA Hardiness Zones
Tagetes minima is not frost-tolerant and grows best in USDA hardiness zones 9-11.
Did You Know?
Tagetes minima is often used as a companion plant in vegetable gardens to repel pests such as nematodes and whiteflies.
