🌼 When to Plant Marigold

When should I plant marigold?

Plant marigold outdoors 2 weeks after last frost. For a head start, start seeds indoors 6 weeks before your area's last frost date. Transplants can go out 1 week after last frost.

Is marigold frost sensitive?

Yes — Marigold is frost-sensitive and will be damaged or killed by temperatures at or below 32°F. Wait until all frost danger has passed and nighttime lows are consistently above 40°F.

What temperature does marigold need?

Marigold grows best between 55°F and 90°F. It can survive down to 40°F, but growth slows significantly below 55°F. Warm nights are especially important once fruiting begins.

How long does marigold take to grow?

Marigold typically takes 45–55 days from transplant (or direct sow) to first harvest.

Should I start marigold seeds indoors?

Yes — start marigold seeds indoors 6 weeks before your area's last expected frost date. This gives seedlings time to develop strong roots before outdoor conditions are ready.

Is it too cold to plant marigold?

It is too cold to plant Marigold outdoors when nighttime temperatures are falling below 40°F. Marigold is frost-sensitive, so a single freeze will kill it — wait until your area's last frost date has passed and nights are reliably above 40°F. Use CanIPlant to check your local 7-day forecast and get a real-time answer for your ZIP code.

Is it too hot to plant marigold?

Marigold starts to struggle when temperatures climb above 90°F. As a warm-season crop, Marigold enjoys heat but can experience blossom drop and reduced fruiting above 95°F. Consistent highs above that level may delay planting until temperatures moderate. CanIPlant checks your local forecast highs to flag this automatically.

Any tips for growing marigold?

Great companion plant — repels pests. Easy and fast-growing.