🏵️ When to Plant Marigolds in Zone 13

Zone 13 is frost-free (Warmest tropical coasts and territories) — plant marigolds nearly year-round, avoiding peak summer heat.

No frost windows apply in zone 13. Plant marigolds in late winter for a pre-summer harvest and again in late summer — peak heat is the season to avoid, not frost.
Zone 13 frost window
Frost-free
Warmest tropical coasts and territories
Spacing
8″ / 12″
plants / rows
Maturity
50–60 days
from sowing

Growing marigolds in zone 13

Cheap, fast, and nearly foolproof from direct-sown seed. Deadhead spent blooms weekly and they flower until frost. French marigolds are the compact ones for bed edges.

Zone 13 covers warmest tropical coasts and territories — tropical — heat-loving crops thrive; classic cool-season crops need the coolest window.

Make it local

These windows use zone 13's typical frost dates. For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.

Frequently asked questions

When should I plant marigolds in zone 13?

Zone 13 is frost-free, so timing flips from frost-avoidance to heat management: plant marigolds nearly year-round, avoiding peak summer heat. Late winter and late summer plantings avoid fruiting during the hottest stretch.

Does marigolds grow well in zone 13?

Yes — heat-loving crops like marigolds thrive in zone 13, often across a far longer window than mainland gardens get. Watch water needs and intense midsummer sun.