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When to plant Nasturtium in Gilchrist County, FL

Gilchrist County sits in USDA Zone 9a. Plant Nasturtium between February 10 (after last frost on March 3) and March 3.

When to Plant Nasturtium in Gilchrist County, FL

Gilchrist County, Florida Zone 9a July

Gilchrist County, Florida gardeners: here's your July plan

Your garden in Gilchrist County, Florida is working on a schedule, even when you're not. Here's where you should be this July.

Avg. last frost March 3
Avg. first frost November 27
Soil temp (4") 96°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Harvest nasturtium as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Coming up in August — start thinking about
  • First harvests: nasturtium

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Nasturtium (Tropaeolum majus) is a fast-growing annual with distinctive round, lily-pad leaves and bold trumpet-shaped blooms in warm oranges, reds, and yellows. Both the flowers and leaves are edible with a peppery watercress flavor. Planted near vegetables, nasturtiums act as a sacrifice trap-crop, luring aphids away from more valuable plants. They thrive in poor, dry soil — rich conditions produce lush foliage but few flowers.

Gilchrist County, Florida is in USDA Zone 9a. The average last spring frost is March 3 and the first fall frost is November 27, giving you a growing season of approximately 269 days.

At an elevation of 236 feet, Gilchrist County receives approximately 53.5 inches of rainfall annually with predominantly sand soil. Summer highs average 102°F, so Nasturtium may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Nasturtium will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Nasturtium root diseases.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting Fragrant
Gilchrist County, FL (Zone 9a) Long season
269 days
Last Spring Frost March 3
269 growing days
First Fall Frost November 27

Gilchrist County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.8

Drainage

Well Drained

Nasturtium Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Start indoors: Jan 17 Transplant: Jan 24 🌸 Bloom: Mar 21 – Sep 19
Recommended (50%) ✓ Fits season (52 days to spare)
Start indoors: Feb 3 Transplant: Feb 10 🌸 Bloom: Apr 7 – Oct 6
Safe Start (90%) ✓ Fits season (56 days to spare)
Start indoors: Feb 22 Transplant: Mar 1 🌸 Bloom: Apr 26 – Oct 25

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 Gilchrist County

How your county's soil matches Nasturtium's growing requirements.

Soil pH

Your soil pH (5.2–5.8) is more acidic than Nasturtium prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Gilchrist County warms quickly in spring but drains fast. Nasturtium will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Nasturtium.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Nasturtium.

How to Plant Nasturtium

0.5"
Planting Depth
10"
Between Plants
12"
Between Rows

Succession Planting Nasturtium

5
successive plantings in your 269-day season

Sow every 6.3 weeks. Last sowing by Sep 23 to harvest before frost.

Nasturtium Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Nasturtium

Nasturtium 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 Nasturtium Needs Rainfall You Supplement Action
Jan 2.8" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 2.2" 3.6" 0" ✅ Rainfall sufficient
Apr 2.2" 2.3" 0" ✅ Rainfall sufficient
May 2.2" 3.4" 0" ✅ Rainfall sufficient
Jun 2.2" 8" 0" ✅ Rainfall sufficient
Jul 2.2" 8.8" 0" ✅ Rainfall sufficient
Aug 2.2" 7.2" 0" ✅ Rainfall sufficient
Sep 2.2" 6.5" 0" ✅ Rainfall sufficient
Oct 2.2" 4" 0" ✅ Rainfall sufficient
Nov 2.2" 2.2" 0" ✅ Rainfall sufficient
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Gilchrist County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Nasturtium 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.

Nasturtium needs ~1,590 GDD — county provides 7,128 GDD Excellent fit

Nasturtium Planting Timeline — Gilchrist County, FL

Nasturtium Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 – Feb 17
Transplant Outdoors February 10 Feb 10 – Feb 24
Direct Sow February 10 Feb 10 – Mar 3
Bloom April 7 Apr 7 – Oct 6

Plant 0.5" deep · 10" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Transplant Outdoors Direct Sow
March Direct Sow
April Bloom
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

55–65 days

🧪 Soil pH

Needs 6–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

269 days in Gilchrist County

Growing Tips for Nasturtium in Gilchrist County

Direct sow Nasturtium outdoors after March 03 in Gilchrist County when soil has warmed and frost danger has passed.

Sandy soil in Gilchrist County dries quickly — mulch Nasturtium with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 102°F in Gilchrist County, provide afternoon shade for Nasturtium and water deeply in the morning.

General growing tips

Direct-sow large seeds 1/2 inch deep after last frost; soak seeds overnight to speed germination (7-10 days). Nasturtiums dislike root disturbance so direct sowing is strongly preferred. Avoid fertilizing — poor soil brings the best bloom. Trailing types can cover banks and climb trellises; dwarf types suit containers. In hot climates (zones 9+) plant in fall for winter/spring bloom as plants struggle in peak summer heat.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Nasturtium in Gilchrist County, FL?

Gilchrist County is in Zone 9a with an average last frost of March 3. Plan your Nasturtium planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gilchrist County, FL?

Gilchrist County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 3 and first fall frost is November 27.

When should I plant Nasturtium in Gilchrist County, FL?

In Gilchrist County, FL, plant Nasturtium after the last frost (around March 3) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Gilchrist County, FL for Nasturtium?

Gilchrist County sits in USDA Zone 9a. Nasturtium grows reliably in zones 2a through 11b, so it's a good fit here.

Can Nasturtium grow in Gilchrist County's climate?

Yes — Nasturtium grows well in Gilchrist County's temperate climate. Gilchrist County averages a 269-day frost-free season, with last frost around March 3 and first frost around November 27.

🌱

Your Gilchrist County Garden Planner — Free

A 22-page printable planner built for Gilchrist County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Gilchrist County, FL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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