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When to Plant Valerian in Macon County, AL

Valerian is a tall perennial herb with fragrant white or pink flower clusters, valued for its root which is used as a natural sleep aid. It attracts pollinators and earthworms.

Macon County, Alabama is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 6, giving you a growing season of approximately 226 days.

At an elevation of 450 feet, Macon County receives approximately 60 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96ยฐF, so Valerian may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Valerian, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Valerian root diseases.

Macon County, AL (Zone 8a) Long season
226 days
Last Spring Frost March 25
226 growing days
First Fall Frost November 6

Macon County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (4 days to spare)
Transplant: Mar 15 🍅 Harvest: Jul 19 – Oct 25
Recommended (50%) ✗ May not fit
Transplant: Apr 1 🍅 Harvest: Aug 5 – Nov 11
Safe Start (90%) ✗ May not fit
Transplant: Apr 24 🍅 Harvest: Aug 28 – Dec 4

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 Macon County

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

Soil pH

Your soil pH (5.2โ€“6.3) overlaps with Valerian's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Macon County is excellent for Valerian โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Valerian.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Valerian.

How to Plant Valerian

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Valerian

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

Month Valerian Needs Rainfall You Supplement Action
Jan โ€” 4.3" 0" โ„๏ธ Dormant
Feb โ€” 4.9" 0" โ„๏ธ Dormant
Mar 4.3" 5.8" 0" โœ… Rainfall sufficient
Apr 4.3" 5" 0" โœ… Rainfall sufficient
May 4.3" 5.4" 0" โœ… Rainfall sufficient
Jun 4.3" 4.8" 0" โœ… Rainfall sufficient
Jul 4.3" 6.7" 0" โœ… Rainfall sufficient
Aug 4.3" 5.6" 0" โœ… Rainfall sufficient
Sep 4.3" 4.6" 0" โœ… Rainfall sufficient
Oct 4.3" 3.9" 0.4" ๐Ÿ’ง Light watering
Nov 4.3" 4.7" 0" โœ… Rainfall sufficient
Dec โ€” 4.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Macon County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Valerian 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" โ€” every day above 50ยฐF 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.

Valerian needs ~3,300 GDD — county provides 4,972 GDD Excellent fit

Valerian Planting Timeline โ€” Macon County, AL

Valerian Planting Calendar

Activity When Date Range
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Harvest August 5 Aug 5 โ€“ Nov 11

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June โ€”
July โ€”
August Harvest
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

120โ€“180 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

226 days in Macon County

Growing Tips for Valerian in Macon County

Direct sow Valerian outdoors after March 25 in Macon County when soil has warmed and frost danger has passed.

With Macon County's clay soil (31% clay), work in 3-4 inches of compost before planting Valerian. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96ยฐF in Macon County, provide afternoon shade for Valerian and water deeply in the morning.

General growing tips

Start seeds indoors and transplant after last frost. Harvest roots in fall of the second year. Deadhead flowers unless you want self-seeding. Cats are attracted to valerian root.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Valerian in Macon County, AL?

Macon County is in Zone 8a with an average last frost of March 25. Plan your Valerian planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Macon County, AL?

Macon County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 6.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Macon County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Macon County, AL. Local conditions may vary. Last updated: April 2026.