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When to plant Salvia in Clay County County,

Clay County County's short 283-day growing season means one Salvia planting between January 28 and February 11. No fall crop in Zone 9a.

When to Plant Salvia in Clay County, FL

Clay County, Florida Zone 9a June

Your June planting checklist for Clay County, Florida

Here's what deserves your attention in Clay County, Florida this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

Avg. last frost February 18
Avg. first frost November 27
Soil temp (4") 88°F
Watering Low
Pest pressure High
Daylight 13.9 hrs
  1. Collect salvia at their peak

    If you can't use it all right away, check the food-preservation section of your planner.

July prep starts now
  • First harvests: salvia

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Salvia splendens is a tender perennial from Brazil grown as a warm-season annual throughout the US. Its vivid, upright flower spikes in brilliant red, purple, and coral are irresistible to hummingbirds, bees, and butterflies. One of the longest-blooming annuals in the landscape — plants bloom from early summer until hard frost with minimal deadheading required.

Clay County, Florida is in USDA Zone 9a. The average last spring frost is February 18 and the first fall frost is November 27, giving you a growing season of approximately 282 days.

At an elevation of 122 feet, Clay County receives approximately 54.3 inches of rainfall annually with predominantly sand soil. Summer highs average 99°F, so Salvia may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Salvia will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Salvia root diseases.

Annual Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting Fragrant
Clay County, FL (Zone 9a) Year-round
282 days
Last Spring Frost February 18
282 growing days
First Fall Frost November 27

Clay County Soil Profile

Soil Type

Sand

Soil pH

5-5.8

Drainage

Well Drained

Salvia Planting Risk Windows

Early Start (70% safe) ✓ Fits season (64 days to spare)
Start indoors: Dec 15 Transplant: Jan 19 🌸 Bloom: Mar 30 – Sep 14
Recommended (50%) ✓ Fits season (65 days to spare)
Start indoors: Dec 24 Transplant: Jan 28 🌸 Bloom: Apr 8 – Sep 23
Safe Start (90%) ✓ Fits season (56 days to spare)
Start indoors: Jan 25 Transplant: Mar 1 🌸 Bloom: May 10 – 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 Clay County

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

Soil pH

Your soil pH (5.0–5.8) is more acidic than Salvia prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Salvia.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Salvia.

How to Plant Salvia

12"
Between Plants
18"
Between Rows

Succession Planting Salvia

4
successive plantings in your 282-day season

Sow every 8 weeks. Last sowing by Aug 29 to harvest before frost.

Salvia Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,245 gal / 100 sq ft

Monthly Watering Guide for Salvia

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

Month Salvia Needs Rainfall You Supplement Action
Jan 2.6" 0" ❄️ Dormant
Feb 4.3" 3" 1.3" 💧 Light watering
Mar 4.3" 3.1" 1.2" 💧 Light watering
Apr 4.3" 2.5" 1.8" 💧 Light watering
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 8.5" 0" ✅ Rainfall sufficient
Jul 4.3" 7.4" 0" ✅ Rainfall sufficient
Aug 4.3" 7.4" 0" ✅ Rainfall sufficient
Sep 4.3" 6.6" 0" ✅ Rainfall sufficient
Oct 4.3" 5.1" 0" ✅ Rainfall sufficient
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 2.2" 0" ❄️ Dormant

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

Salvia 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.

Salvia needs ~1,940 GDD — county provides 6,862 GDD Excellent fit

Salvia Planting Timeline — Clay County, FL

Salvia Planting Calendar

Activity When Date Range
Start Indoors December 24 Dec 24 – Jan 7
Transplant Outdoors January 28 Jan 28 – Feb 11
Bloom April 8 Apr 8 – Sep 23

· 12" apart · Rows 18" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

282 days in Clay County

Growing Tips for Salvia in Clay County

Direct sow Salvia outdoors after February 18 in Clay County when soil has warmed and frost danger has passed.

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

With summer highs reaching 99°F in Clay County, provide afternoon shade for Salvia and water deeply in the morning.

General growing tips

Start indoors 8-10 weeks before last frost; seeds need 65-70°F soil and light to germinate (surface-sow, do not cover). Transplant after last frost when soil has warmed. Salvia is frost-sensitive — even a light frost kills plants. Pinch spent spikes to encourage continued bloom. Tolerates heat and humidity well once established. In zones 9b-11b can be grown as a short-lived perennial.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Salvia in Clay County, FL?

Clay County is in Zone 9a with an average last frost of February 18. Plan your Salvia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clay County, FL?

Clay County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 18 and first fall frost is November 27.

When should I plant Salvia in Clay County, ?

In Clay County, , plant Salvia after the last frost (around February 18) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Clay County, for Salvia?

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

Can Salvia grow in Clay County's climate?

Yes — Salvia grows well in Clay County's temperate climate. Clay County averages a 283-day frost-free season, with last frost around February 18 and first frost around November 27.

🌱

Your Clay County Garden Planner — Free

A 22-page printable planner built for Clay 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 Clay County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.