Signet Marigold
Lemon Gem Marigold is a signet marigold that transforms the traditional idea of what a marigold can be. Unlike the heavy-headed varieties most gardeners know, this cultivar produces hundreds of petite, single lemon-yellow flowers that blanket the plant in a delicate cloud of color, reaching just 12-18 inches tall and wide. The finely divided, lacy foliage carries a bright citrusy fragrance, making it perfect for containers, borders, or dense edging. Starting from seed indoors takes about 60-65 days to first bloom, and with deadheading, these compact mounds will flower continuously until frost.
Full Sun
High
2-11
18in H x 12in W
Annual
Moderate
Hover over chart points for details
What sets Lemon Gem apart is its entirely different growth habit from conventional marigolds. The petite, single flowers and feathery foliage create an airy, cloud-like effect rather than the dense, formal blooms people expect. The plant becomes absolutely smothered in hundreds of tiny flowers, each releasing a cheerful citrusy fragrance. Its compact, low-mounding form makes it exceptionally versatile, equally stunning in containers as it is at the front of a border or massed as an edging plant. And unlike heavier marigold varieties, it actually improves with regular deadheading, rewarding maintenance with ever-more blooms.
Lemon Gem is grown primarily as an ornamental flower for fresh cutting and as a living border plant. As a cut flower, it brings bright color and fragrance indoors, particularly prized because regular harvesting encourages even fuller, more prolific blooming. The dense, mounding growth also makes it ideal for container gardening and for creating low-growing edges along beds or pathways.
Sow seeds indoors 6-8 weeks before your last frost date. Germination occurs between 70-85°F and typically happens within 6-15 days. Cover seeds lightly — they need light to germinate properly. Keep soil moist but not waterlogged during the germination period.
Transplant seedlings outdoors after the last frost date when soil has warmed and all danger of frost has passed. Harden off seedlings by gradually exposing them to outdoor conditions over 7-10 days. Space plants 12 inches apart.
For fresh-cut flowers, harvest in the morning when flower petals are just opening and at their freshest. Use a clean knife that has been dipped in a 10% household bleach solution to prevent disease transmission. A few drops of bleach added to the vase water will prolong the beauty and freshness of the cut flowers.
Deadheading is essential to keep Lemon Gem flowering prolifically all season. Pinch or cut off spent flowers regularly, which prevents the plant from setting seed and signals it to produce more blooms instead. This maintenance transforms the plant from a simple container planting into a continuous, non-stop flowering display.
Enter your ZIP code to see a personalized growing calendar for this plant.
“Marigolds are native to the Americas, where they've been cultivated for centuries. The signet marigold type, to which Lemon Gem belongs, represents a distinct lineage within the Tagetes family, valued specifically for their delicate habit and ornamental qualities rather than the larger, heavier-headed types that dominate commercial cultivation.”