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When to plant Salvia in Covington County, AL

Covington County's 236-day season only supports one Salvia planting per year. Sow between March 6 and March 20 for the best chance at full maturity before November 11.

When to Plant Salvia in Covington County, AL

Covington County, Alabama Zone 8b June

Covington County, Alabama gardeners: here's your June plan

A quick June briefing for Covington County, Alabama gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 20
Avg. first frost November 11
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Pick salvia

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Looking ahead to July
  • 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.

Covington County, Alabama is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 11, giving you a growing season of approximately 236 days.

At an elevation of 392 feet, Covington County receives approximately 50.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Salvia may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Salvia, but amend with compost to improve drainage and prevent root rot. 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
Covington County, AL (Zone 8b) Long season
236 days
Last Spring Frost March 20
236 growing days
First Fall Frost November 11

Covington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Salvia Planting Risk Windows

Early Start (70% safe) ✓ Fits season (25 days to spare)
Start indoors: Jan 15 Transplant: Feb 26 🌸 Bloom: May 7 – Oct 8
Recommended (50%) ✓ Fits season (26 days to spare)
Start indoors: Jan 23 Transplant: Mar 6 🌸 Bloom: May 15 – Oct 16
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Feb 14 Transplant: Mar 28 🌸 Bloom: Jun 6 – Nov 7

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 Covington County

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

Soil pH

Your soil pH (5.3–6.6) overlaps with Salvia's range (5.5–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Covington County is excellent for Salvia — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Salvia.

How to Plant Salvia

12"
Between Plants
18"
Between Rows

Succession Planting Salvia

3
successive plantings in your 236-day season

Sow every 8 weeks. Last sowing by Aug 13 to harvest before frost.

Salvia Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 209 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 3.9" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 4.7" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 4.3" 3.4" 0.9" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Covington 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 ~1,700 GDD — county provides 5,015 GDD Excellent fit

Salvia Planting Timeline — Covington County, AL

Salvia Planting Calendar

Activity When Date Range
Start Indoors January 23 Jan 23 – Feb 6
Transplant Outdoors March 6 Mar 6 – Mar 20
Bloom May 15 May 15 – Oct 16

· 12" apart · Rows 18" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

236 days in Covington County

Growing Tips for Salvia in Covington County

Direct sow Salvia outdoors after March 20 in Covington County when soil has warmed and frost danger has passed.

With Covington County's clay soil (33% clay), work in 3-4 inches of compost before planting Salvia. Avoid tilling when soil is wet to prevent compaction.

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 Covington County, AL?

Covington County is in Zone 8b with an average last frost of March 20. Plan your Salvia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Covington County, AL?

Covington County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 11.

When should I plant Salvia in Covington County, AL?

In Covington County, AL, plant Salvia after the last frost (around March 20) and before the first frost (around November 11). Best results when soil holds above 50°F.

What growing zone is Covington County, AL for Salvia?

Covington County sits in USDA Zone 8b. Salvia grows reliably in zones 2a through 11b, so it's a good fit here.

Can Salvia grow in Covington County's climate?

Yes — Salvia grows well in Covington County's temperate climate. Covington County averages a 236-day frost-free season, with last frost around March 20 and first frost around November 11.

🌱

Your Covington County Garden Planner — Free

A 22-page printable planner built for Covington County (Zone 8b). 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 Covington County, AL. 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.