Quick answer: Marigold (African) (Tagetes erecta) can grown in The Crossings, FL (USDA zone 10b, Subtropical Southeast). Plant year-round — The Crossings has no frost on record. Use a 3-gallon, 8" deep container with well-drained loam; moderately fertile; tolerates poor soil, pH 6–7.5. Water every 1-2 days at peak summer — The Crossings's tropical monsoon climate is reasonably forgiving. Matures to 36" tall × 18" wide.
Why grow Marigold (African) in The Crossings?
The Crossings sits in USDA zone 10b (heat zone 12) with a Am (tropical monsoon) climate (Köppen-Geiger / VU Wien) — Subtropical Southeast. Summer highs reach 90°F (NOAA NCEI) and winter lows fall to 60°F, at 26ft elevation (USGS). Marigold (African) prefers USDA zones 2–11, killed below 50°F. Marigold (African) fits the local zone window with normal container care. Surrounding metros — Three Lakes, Kendale Lakes, and Kendall — share the same climate, so this guide largely applies to them too.
The Crossings's year-round growing season (no frost on record) gives you plenty of runway for marigold (african), which take 50–80 days to mature. The Crossings averages 2700 hours of sunshine annually with 100 chill hours per winter — marigold (african) only need 6–10 hours daily, so light is never the problem. The game in The Crossings is matching variety to your local microclimate.
Metro-wide climate notes: Three Lakes and Kendale Lakes sit in the same zone 10b tropical monsoon basin as The Crossings, while Kendall at slightly higher elevation runs 2-3°F cooler in winter. The Hammocks in the lower valley shares The Crossings's frost dates almost exactly. The marigold (african) growing strategies in this guide apply across the entire metro.
Also known as: American Marigold; Aztec Marigold; Mexican Marigold; Big Marigold; Cempasuchil · Family: Asteraceae · Annual ornamental.
When to plant in The Crossings
The Crossings's climate gives you a clear marigold (african) window from spring through fall. Here are the dates that actually matter.
The The Crossings Marigold (African) calendar
- Start seeds indoors: 6 weeks before Feb 15
- Transplant outdoors (spring): After Feb 15 when soil temp ≥ 60°F
- First harvest: Mid-summer on early-maturing cultivars
- Peak production: Mid- to late summer
- Final harvest: Before Dec 10
Container setup for The Crossings
Marigold (African) needs a 3-gallon minimum, 8" deep container. Mature plants reach 36" tall × 18" wide.
Material warning for The Crossings: with 74% average humidity, drainage is the priority — non-breathable containers stay wet too long. Use:
- Fabric pots — air-prune roots, breathable
- Quality plastic with drainage — durable and affordable
- Glazed ceramic — attractive and stable
Soil: Well-drained loam; moderately fertile; tolerates poor soil, pH 6–7.5. Local soil: The Crossings's native soil is sandy loam (matters for in-ground; containers use potting mix regardless).
Best marigold (african) varieties for The Crossings
The Crossings growers do well with these popular varieties (from breeders' lists). Pick by flavor and growth habit:
- Inca Gold
- Crackerjack Mix
- Lady Orange
- Marvel Mix
- Antigua Yellow
Care routine for The Crossings
Water
Container-grown marigold (african) in The Crossings needs water every 1–2 days at peak summer. Marigold (African)s are a Low water-category plant with a baseline of every 3 days in containers. With only 62" of annual rainfall and 74% average humidity, weather provides regular help in summer thunderstorms. The Crossings has low water restrictions — drip irrigation and morning watering (before 8am) are both efficiency-smart and rule-compliant.
Metro-wide note: The Crossings and surrounding Three Lakes, Kendale Lakes, Kendall all share regional water management, so the low restriction schedule below applies regionally.
Fertilizer
Marigold (African)s are a light feeder. Use a 5-10-5 (matched to flowering-and-fruiting stage) fertilizer once flowers appear. In containers, nutrients leach with every watering — feed weekly at half strength rather than monthly at full.
Sun
Marigold (African)s need 6–10 hours of Full Sun. In The Crossings, morning sun with light afternoon protection during heat waves keeps plants productive without scorching.
Pests & diseases in The Crossings
Priority pests (The Crossings + Marigold (African) intersection)
Both marigold (african) and gardens in The Crossings are commonly affected by aphids. These deserve weekly inspection — weekly inspection catches problems early.
Also watch for (marigold (african)-specific, less common locally): japanese beetles; slugs; snails; spider mites; spittlebugs; thrips.
Common marigold (african) diseases: powdery mildew; botrytis blight; leaf spot; root rot; aster yellows. The Crossings's humid air raises fungal disease pressure — blights, Septoria, and powdery mildew all need active management.
Companion plants & what to avoid
Good companions: tomato; pepper; eggplant; cucumber; squash; bean; basil; rose.
Avoid planting with: brassicas (some reports of growth inhibition).
Pollination: Marigold (African)s are self-pollinating — a single plant will set fruit on its own.
Wildlife & pet safety
Deer pressure in The Crossings: high (urban metro). Marigold (African)s are deer-resistant — still good practice to plant within sight of the house in higher-pressure suburbs.
Pet safety: Toxic to cats: Yes · Toxic to dogs: Yes. Mildly toxic to cats and dogs per ASPCA; may cause GI irritation and contact dermatitis; sap can irritate skin
What it looks like in The Crossings
- Mature height: 36" tall
- Mature spread: 18" wide
- Growth habit: Upright
- Bloom months: Jun; Jul; Aug; Sep; Oct
- Foliage: Annual
- Wildlife value: bees; butterflies; goldfinches; repels nematodes
Grower's tips for Marigold (African)
Direct sow after last frost or transplant for earlier bloom; deadhead regularly; roots release thiophenes that repel root-knot nematodes; ideal companion for vegetables; very heat and drought tolerant once established
Common The Crossings marigold (african) mistakes
- Over-fertilizing causing lush foliage but few flowers.
- planting in shade reducing bloom.
- overhead watering causing fungal issues.
- not deadheading shortening bloom period.
- planting before soil warms.
- Treating The Crossings's shoulder seasons like midsummer — variable spring and fall weather punishes calendar planting.
The Crossings marigold (african) FAQ
Does this The Crossings guide apply to Three Lakes, Kendale Lakes, Kendall?
Yes — Three Lakes, Kendale Lakes, Kendall, The Hammocks, Richmond Heights all share The Crossings's USDA zone 10b, Am climate, and 295-day growing season. The varieties, planting calendar, and care advice in this guide apply across the entire metro. Subtle elevation differences shift frost dates by only a few days.
Can I grow marigold (african) year-round in The Crossings?
Yes — The Crossings has no frost on record, so marigold (african) can grow year-round. Peak-summer heat and the wet season are the practical limits, not cold.
What's the best month to plant marigold (african) in The Crossings?
The Crossings has no frost on record, so marigold (african) can be transplanted year-round. The cooler shoulder months (roughly November through March) typically out-yield peak summer because daytime heat stress is lower and pollination is steadier.
Do I need a greenhouse for marigold (african) in The Crossings?
Not required, but a season-extension structure helps in shoulder months. Most The Crossings growers do fine with open-air containers.
How much sun do marigold (african) need in The Crossings?
Marigold (African)s need 6–10 hours of direct sun. The Crossings delivers 2700 annual sunshine hours — plenty for full production with a south or west exposure.
What USDA zone is The Crossings?
The Crossings is in USDA hardiness zone 10b with AHS heat zone 12. No frost is recorded — the growing season runs year-round.
Where can I buy marigold (african) seedlings near The Crossings?
Check The Crossings's 0 farmers markets and local nurseries. Your state extension (https://sfyl.ifas.ufl.edu) lists certified suppliers and runs seasonal plant sales. 1 community gardens across the metro also share seedlings.
Are marigold (african) safe for my pets in The Crossings?
Toxic to cats: Yes; toxic to dogs: Yes. Mildly toxic to cats and dogs per ASPCA; may cause GI irritation and contact dermatitis; sap can irritate skin Keep curious pets out of the container or use a cage.
How much water do marigold (african) use in The Crossings?
A 3-gallon container needs roughly 0.5–1 gallon per day in summer (sometimes 2 gallons during heat waves). The Crossings's low water restrictions limit watering times, not amounts — drip irrigation and morning watering before 8am stays efficient and compliant. Rainfall averages 62" annually.
The Crossings gardening resources
- State extension: Florida Cooperative Extension
- Region: Subtropical Southeast · Miami-Dade County, Florida · population 22,758
- Community gardens: approximately 1 across the The Crossings metro
- Farmers markets: 0 registered with USDA AMS
- Elevation: 26ft above sea level
- Nearby cities: Three Lakes gardening guide · Kendale Lakes gardening guide · Kendall gardening guide · The Hammocks gardening guide · Richmond Heights gardening guide
Data sources
Climate, geographic, and toxicity data on this page come from public datasets. Cultivar profiles and growing recommendations draw on land-grant university extension research.
- USDA 2023 Plant Hardiness Zone Map (USDA Agricultural Research Service) — https://planthardiness.ars.usda.gov/ — Data via PRISM Climate Group, Oregon State University
- NOAA Climate Normals 1991-2020 (NOAA National Centers for Environmental Information) — https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals
- Köppen-Geiger Climate Classification (US Counties) (Vienna University (TU Wien)) — https://koeppen-geiger.vu-wien.ac.at/usa.htm
- USGS Elevation Point Query Service (U.S. Geological Survey) — https://epqs.nationalmap.gov/
- USDA AMS National Farmers Market Directory (USDA Agricultural Marketing Service) — https://www.ams.usda.gov/local-food-directories/farmersmarkets
- ASPCA Toxic and Non-Toxic Plant List (American Society for the Prevention of Cruelty to Animals) — https://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants
- Florida Cooperative Extension (Florida) — https://sfyl.ifas.ufl.edu