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Glandular Cape Marigold (Dimorphotheca sinuata)

Dimorphotheca sinuata, the Glandular Cape Marigold, is a vibrant annual wildflower native to South Africa, celebrated for its bright, daisy-like flowers blooming profusely in warmer months.

Above information is sourced from Wikipedia

Sunlight

Prefers full sun for abundant flowering.

Watering

Water regularly, allowing soil to dry slightly between waterings.

Soil

Well-draining soil is crucial. Prefers sandy or loamy soils and is tolerant of poor, dry conditions.

Temperature

Thrives in warm temperatures between 15-25°C.

Habitat

Outdoor

Fertilizer

Fertilize sparingly during the growing season.

Care Requirements

Light

Prefers full sun for abundant flowering.

Tolerates partial shade but with fewer blooms.

Water

Water regularly, allowing soil to dry slightly between waterings.

Avoid overwatering.

Soil

Well-draining soil is crucial. Prefers sandy or loamy soils and is tolerant of poor, dry conditions.

Temperature

Thrives in warm temperatures between 15-25°C.

Protect from frost.

Habitat

Outdoor

Fertilizer

Fertilize sparingly during the growing season.

Balanced liquid fertilizer, diluted.

Plant Overview

Plant Type

Herb

Plant Category

Flowering, Ornamental

Plant Place Type

Ground, Garden, Pot

Plant Environment

Outdoor

Lifespan

Annuals

Plant Height

0.15-0.3 m

Spread

0.2-0.4 m

Growth Rate

Fast

Dormancy

None

Leaf Color

Green

Leaf Type

Lobed

Flower Size

3-5 cm

Optimal Sunlight Lux

70000

Image Gallery

Flowering & Fruiting Cycles

Monthly activity intensity for bloom and fruit across both hemispheres.

Northern hemisphere

Flowering & fruiting calendar

Peak bloom · MayPeak fruit · Jun
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths86
Southern hemisphere

Flowering & fruiting calendar

Peak bloom · NovPeak fruit · Nov
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths86
Synonyms
Acanthotheca dentata DC.
Acanthotheca integrifolia DC.
Dimorphotheca calendulacea Harv.
Dimorphotheca dentata Harv.
Dimorphotheca integrifolia (DC.) Harv.
Dimorphotheca pseudaurantiaca Schinz & Thell.
Taxonomy
  • kingdomPlantae
  • divisionTracheophyta
  • classMagnoliopsida
  • orderAsterales
  • familyAsteraceae
  • genusDimorphotheca
  • speciesDimorphotheca sinuata
Toxicity

Toxic for humans

No

Rating: 0/5

Toxic for pets

No

Rating: 0/5

Edible

No

None

Additional Care Tips

Water consistently during the growing season, especially in dry periods. Reduce watering in cooler months or when the plant is dormant.

Deadheading spent flowers encourages continuous blooming and prevents self-seeding if not desired. Light pruning can help maintain a tidy shape, but heavy pruning is generally not necessary for this annual.

Easily grown from seed sown directly outdoors after the last frost. Seeds can also be started indoors 4-6 weeks before the last frost date for earlier blooms.

As an annual, repotting is typically only relevant if grown in containers. If plants become root-bound, repot into a slightly larger container in spring.

FAQs

When is the best time to plant Dimorphotheca sinuata seeds?

Sow seeds directly outdoors after the last frost in spring, or start indoors 4-6 weeks prior for earlier blooms.

Why are my Cape Marigold flowers not opening?

Cape Marigolds typically close their flowers at night or on overcast days. Ensure they are receiving adequate sunlight; insufficient light can cause them to stay closed longer.

How often should I water Dimorphotheca sinuata?

Water regularly, allowing the top inch of soil to dry out between waterings. They are relatively drought-tolerant once established but perform best with consistent moisture.

Can Dimorphotheca sinuata be grown in containers?

Yes, they are excellent for container gardening. Ensure the pots have good drainage and the plants receive plenty of sunlight.

Do I need to fertilize Glandular Cape Marigold?

These plants are not heavy feeders. Fertilize sparingly with a balanced liquid fertilizer once or twice during the growing season to promote flowering without excessive leaf growth.