When to plant Calendula in Manatee County County,
In Zone 10a (Manatee County County), direct-sow Calendula between November 19 and December 10 for spring, after the January 28 last-frost mark. A second sowing from September 13 to September 27 extends the harvest into fall.
When to Plant Calendula in Manatee County, FL
June in Manatee County, Florida — your action list
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
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Survive, don't thrive
June-August is endurance gardening. Keep okra, peppers, sweet potatoes, and southern peas alive. Harvest everything daily before the heat damages produce on the vine.
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Start fall tomato seeds indoors
Yes, indoors — under lights or in AC. They'll be ready to transplant in August when temperatures briefly moderate.
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Add compost to empty beds
Empty beds get a thick layer of compost + mulch to suppress weeds and feed the soil for fall planting.
Calendula (Calendula officinalis) is a cheerful, edible-flowered cool-season annual valued by herbalists, chefs, and gardeners alike. Its golden-orange petals are used in salves, teas, and as a saffron substitute. Hardy enough to tolerate light frosts, it blooms prolifically in spring and fall, taking a pause during the hottest weeks of summer.
Manatee County, Florida is in USDA Zone 10a. The average last spring frost is January 28 and the first fall frost is December 20, giving you a growing season of approximately 326 days.
At an elevation of 237 feet, Manatee County receives approximately 57.6 inches of rainfall annually with predominantly sand soil. Summer highs average 103°F, so Calendula may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Calendula will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Calendula root diseases.
Manatee County Soil Profile
Soil Type
Sand
Soil pH
5-5.9
Drainage
Well Drained
Calendula Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Manatee County
How your county's soil matches Calendula's growing requirements.
Soil pH
Your soil pH (5.0–5.9) is more acidic than Calendula prefers (5.5–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in Manatee County warms quickly in spring but drains fast. Calendula will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is low (1.6%). Add 2-3 inches of compost before planting Calendula.
How to Plant Calendula
Fall planting: Sow 14 weeks before your first frost date for a fall harvest.
Succession Planting Calendula
Sow every 5.7 weeks. Last sowing by Oct 11 to harvest before frost.
For a dedicated fall crop, sow by Sep 13.
Calendula Water Budget
Monthly Watering Guide for Calendula
Calendula needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Calendula Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| Feb | 2.2" | 2.8" | 0" | ✅ Rainfall sufficient |
| Mar | 2.2" | 3.3" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 3" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 8.7" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 8.4" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 7.2" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 8.4" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4.7" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| Dec | 2.2" | 2.2" | 0" | ✅ Rainfall sufficient |
Water needs are for active growing months only (Jan–Dec in Manatee County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Calendula Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Calendula Planting Timeline — Manatee County, FL
Calendula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | December 17 | Dec 17 – Dec 31 |
| Direct Sow | November 19 | Nov 19 – Dec 10 |
| Bloom | January 28 | Jan 28 – May 6 |
| Fall Sowing | September 13 | Sep 13 – Sep 27 |
Plant 0.3" deep · 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Bloom |
| February | Bloom |
| March | Bloom |
| April | Bloom |
| May | Bloom |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| October | — |
| November | Direct Sow |
| December | Transplant Outdoors Direct Sow |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 5.5–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 10a
📆 Growing Season
326 days in Manatee County
Growing Tips for Calendula in Manatee County
Direct sow Calendula outdoors after January 28 in Manatee County when soil has warmed and frost danger has passed.
Sandy soil in Manatee County dries quickly — mulch Calendula with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 103°F in Manatee County, provide afternoon shade for Calendula and water deeply in the morning.
Common pests for Calendula in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct-sow in early spring as soon as soil can be worked — seeds germinate in cool soil (50-65°F). In zones 7+, also sow in fall for winter/spring bloom. Deadhead consistently to extend bloom. Plants self-seed readily; save a few spent heads and allow them to drop. Harvest petals when flowers are fully open for best flavor and medicinal value.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Calendula in Other Locations
Frequently Asked Questions
When should I plant Calendula in Manatee County, FL?
Manatee County is in Zone 10a with an average last frost of January 28. Plan your Calendula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Manatee County, FL?
Manatee County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 28 and first fall frost is December 20.
When should I plant Calendula in Manatee County County, ?
In Manatee County County, , plant Calendula after the last frost (around January 28) and before the first frost (around December 20). Best results when soil holds above 50°F.
What growing zone is Manatee County County, for Calendula?
Manatee County County sits in USDA Zone 10a. Calendula grows reliably in zones 2a through 11b, so it's a good fit here.
Can Calendula grow in Manatee County County's climate?
Yes — Calendula grows well in Manatee County County's temperate climate. Manatee County County averages a 327-day frost-free season, with last frost around January 28 and first frost around December 20.
Your Manatee County Garden Planner — Free
A 22-page printable planner built for Manatee County (Zone 10a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.