Calendula, English Marigold, Pot Marigold
Calendulaofficinalis 'Radio'

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Calendula (ka-LEN-dew-luh)
Species: officinalis (oh-fiss-ih-NAH-liss)
Cultivar: Radio

Category
Annuals

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun

Foliage
This plant is fire-retardant

Foliage Color

Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)

Hardiness
Not Applicable

Where to Grow

Danger
N/A

Bloom Color
Orange

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Blooms repeatedly

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored