Calendula officinalis Greenheart Yellow | Pot Marigold | Vibrant Double Blooms for Cutting and Pollinators

Calendula officinalis Greenheart Yellow is a tall, double-flowered marigold variety celebrated for its striking beauty and versatility. Its bright golden-yellow petals encircle a distinctive green center, creating a cheerful contrast that glows in garden borders and floral arrangements alike. With strong, upright stems and long-lasting blooms, this calendula is a must-grow for both flower farmers and home gardeners.

A true garden classic, Calendula is among the easiest and fastest flowers to grow from seed blooming in as little as 60 days. The plants attract beneficial insects and pollinators, making them perfect for organic gardens. The edible petals can be used to garnish salads, infuse oils, or create natural dyes and healing salves.

Greenheart Yellow thrives in full sun and well-drained soil, flowering continuously from early summer until frost. Regular cutting or deadheading encourages even more blooms throughout the season.

Plant Details

• Botanical name: Calendula officinalis Greenheart Yellow
• Common name: Pot Marigold, English Marigold
• Plant type: Hardy annual
• Height: 6090 cm (2436 in)
• Position: Full sun
• Days to maturity: Approx. 60 days
• Spacing: 2225 cm
• Pinching: When 20 cm tall
• Flowering period: JuneOctober
• Uses: Cut flower, pollinator plant, edible and medicinal herb

Sowing & Germination

• Sow outdoors: AprilMay directly where plants are to flower
• Sow depth: 1 cm (10 mm), thinly in rows 30 cm apart
• Germination: 510 days in darkness
• Sow indoors: FebruaryApril at 1823C for earlier blooms
• Transplanting: Move seedlings to 8 cm pots, grow on in cool, bright conditions
• Autumn sowing: SeptemberOctober for early spring flowering (protect in greenhouse or cold frame)

Growing Tips

• Water regularly until plants are well established
• Cut flowers frequently or remove spent blooms to extend the flowering season
• Will gently self-seed if left to mature
• Tolerates poor soils and cool temperatures

Why Grow Greenheart Yellow?

• Unique green-centered double blooms
• Excellent for cut flowers and container gardens
• Fast-growing and easy to cultivate
• Edible and medicinal petals use in herbal teas, balms, and natural dyes
• Pollinator-friendly and ideal for organic gardens