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When to plant Sweet Pea in Pasco County County,

For Pasco County County, gardeners: plant Sweet Pea mid-spring through late spring once soil reads 50°F. A second sowing from October 7 to October 21 extends the harvest into fall.

When to Plant Sweet Pea in Pasco County, FL

Pasco County, Florida Zone 9b June

June to-do list for Pasco County, Florida

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

Avg. last frost January 25
Avg. first frost December 16
Soil temp (4") 88°F
Watering Low
Pest pressure High
Daylight 13.8 hrs

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Sweet peas (Lathyrus odoratus) are beloved cool-season climbing annuals grown primarily for their intensely fragrant, ruffled blooms in shades of pink, purple, red, and white. They thrive in cool spring conditions, climbing trellises to 4–6 feet, and make outstanding cut flowers. Bloom ceases once summer heat arrives, making early sowing critical for a long cutting season.

Pasco County, Florida is in USDA Zone 9b. The average last spring frost is January 25 and the first fall frost is December 16, giving you a growing season of approximately 325 days.

At an elevation of 321 feet, Pasco County receives approximately 59.3 inches of rainfall annually with predominantly sand soil. Summer highs average 102°F, so Sweet Pea may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Sweet Pea will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sweet Pea root diseases.

Annual Blooms in Spring Pollinator-friendly Good for cutting Fragrant
Pasco County, FL (Zone 9b) Year-round
325 days
Last Spring Frost January 25
325 growing days
First Fall Frost December 16

Pasco County Soil Profile

Soil Type

Sand

Soil pH

4.9-6.1

Drainage

Well Drained

Sweet Pea Planting Risk Windows

Early Start (70% safe) ✓ Fits season (213 days to spare)
Transplant: Jan 19 🌸 Bloom: Mar 30 – May 11
Recommended (50%) ✓ Fits season (213 days to spare)
Transplant: Jan 25 🌸 Bloom: Apr 5 – May 17
Safe Start (90%) ✓ Fits season (187 days to spare)
Transplant: Feb 28 🌸 Bloom: May 9 – Jun 20

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 Pasco County

How your county's soil matches Sweet Pea's growing requirements.

Soil pH

Your soil pH (4.9–6.1) is more acidic than Sweet Pea prefers (7.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Sweet Pea.

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting Sweet Pea.

How to Plant Sweet Pea

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Sweet Pea

6
successive plantings in your 325-day season

Sow every 7.4 weeks. Last sowing by Sep 22 to harvest before frost.

For a dedicated fall crop, sow by Oct 07.

Sweet Pea Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,866 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Sweet Pea

Sweet Pea needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Sweet Pea Needs Rainfall You Supplement Action
Jan 4.3" 2.5" 1.8" 💧 Light watering
Feb 4.3" 3.1" 1.2" 💧 Light watering
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 2.9" 1.4" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 8.7" 0" ✅ Rainfall sufficient
Jul 4.3" 9.5" 0" ✅ Rainfall sufficient
Aug 4.3" 7.9" 0" ✅ Rainfall sufficient
Sep 4.3" 8" 0" ✅ Rainfall sufficient
Oct 4.3" 4.9" 0" ✅ Rainfall sufficient
Nov 4.3" 2.4" 1.9" 💧 Light watering
Dec 4.3" 2.1" 2.2" 🚿 Regular watering

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

Sweet Pea 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.

Sweet Pea needs ~1,988 GDD — county provides 8,639 GDD Excellent fit

Sweet Pea Planting Timeline — Pasco County, FL

Sweet Pea Planting Calendar

Activity When Date Range
Bloom December 16 Dec 16 – Jan 27
Fall Sowing October 7 Oct 7 – Oct 21

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Bloom
February
March
April
May
June
July
August
September
October Fall Sowing
November
December Bloom

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

65–85 days

🧪 Soil pH

Needs 7–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

325 days in Pasco County

Growing Tips for Sweet Pea in Pasco County

Direct sow Sweet Pea outdoors after January 25 in Pasco County when soil has warmed and frost danger has passed.

Sandy soil in Pasco County dries quickly — mulch Sweet Pea 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 Pasco County, provide afternoon shade for Sweet Pea and water deeply in the morning.

Common pests for Sweet Pea in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Soak seeds 24 hours before sowing to soften the hard seed coat; nick the seed coat with a file for the fastest germination. In cold zones (2–6), direct-sow as soon as soil can be worked, 4–6 weeks before last frost; seedlings tolerate light frost but not a hard freeze. In zones 7–9, fall-sow 8–10 weeks before first frost for earlier, stronger spring bloom. Provide a trellis or netting from the start. Feed with low-nitrogen, high-potassium fertilizer once buds form. Pick blooms regularly — even one mature seed pod stops flower production. All plant parts are mildly toxic if eaten.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sweet Pea in Pasco County, FL?

Pasco County is in Zone 9b with an average last frost of January 25. Plan your Sweet Pea planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pasco County, FL?

Pasco County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 25 and first fall frost is December 16.

When should I plant Sweet Pea in Pasco County, ?

In Pasco County, , plant Sweet Pea after the last frost (around January 25) and before the first frost (around December 16). Best results when soil holds above 50°F.

What growing zone is Pasco County, for Sweet Pea?

Pasco County sits in USDA Zone 9b. Sweet Pea grows reliably in zones 2a through 9b, so it's a good fit here.

Can Sweet Pea grow in Pasco County's climate?

Yes — Sweet Pea grows well in Pasco County's temperate climate. Pasco County averages a 326-day frost-free season, with last frost around January 25 and first frost around December 16.

🌱

Your Pasco County Garden Planner — Free

A 22-page printable planner built for Pasco County (Zone 9b). 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 Pasco County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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