When to plant Sweet Alyssum in Tuscaloosa County County,
Plant Sweet Alyssum in Tuscaloosa County County, when soil hits 50°F — usually February 8. Continue planting through March 1 for the spring crop. A second sowing from September 14 to September 28 extends the harvest into fall.
When to Plant Sweet Alyssum in Tuscaloosa County, AL
Your June game plan for Tuscaloosa County, Alabama
Each item below is timed to Tuscaloosa County, Alabama's frost dates and soil temperatures. Skip nothing, stress about nothing.
-
Start harvesting sweet alyssum
If you can't use it all right away, check the food-preservation section of your planner.
Coming up in July — start thinking about
- First harvests: sweet alyssum
Sweet Alyssum (Lobularia maritima) is a low-growing cool-season annual prized for its honey-scented clusters of tiny white, pink, or purple flowers. A workhorse border plant, it tolerates light frost, self-seeds readily, and attracts beneficial insects throughout its bloom season. In warm climates it often re-blooms in fall after summer heat fades.
Tuscaloosa County, Alabama is in USDA Zone 8b. The average last spring frost is March 22 and the first fall frost is November 9, giving you a growing season of approximately 232 days.
At an elevation of 436 feet, Tuscaloosa County receives approximately 52.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Sweet Alyssum during the growing season. Clay soil retains moisture well for Sweet Alyssum, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sweet Alyssum root diseases.
Tuscaloosa County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.2
Drainage
Well Drained
Sweet Alyssum Planting Risk Windows
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 Tuscaloosa County
How your county's soil matches Sweet Alyssum's growing requirements.
Soil pH
Your soil pH (5.5–6.2) is more acidic than Sweet Alyssum prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The clay loam soil in Tuscaloosa County is excellent for Sweet Alyssum — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Sweet Alyssum.
How to Plant Sweet Alyssum
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Sweet Alyssum
Sow every 5.1 weeks. Last sowing by Sep 10 to harvest before frost.
For a dedicated fall crop, sow by Sep 14.
Sweet Alyssum Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Sweet Alyssum
Sweet Alyssum 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 | Sweet Alyssum Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.5" | 0" | ❄️ Dormant |
| Feb | — | 4.7" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.2" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 4.1" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4.7" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.3" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.5" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.9" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Tuscaloosa County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Sweet Alyssum 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 Alyssum Planting Timeline — Tuscaloosa County, AL
Sweet Alyssum Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 8 | Feb 8 – Feb 22 |
| Transplant Outdoors | March 1 | Mar 1 – Mar 15 |
| Direct Sow | February 8 | Feb 8 – Mar 1 |
| Bloom | April 12 | Apr 12 – Aug 16 |
| Fall Sowing | September 14 | Sep 14 – Sep 28 |
· 6" apart · Rows 8" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | Bloom |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
45–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8b
📆 Growing Season
232 days in Tuscaloosa County
Growing Tips for Sweet Alyssum in Tuscaloosa County
Direct sow Sweet Alyssum outdoors after March 22 in Tuscaloosa County when soil has warmed and frost danger has passed.
With Tuscaloosa County's clay soil (33% clay), work in 3-4 inches of compost before planting Sweet Alyssum. Avoid tilling when soil is wet to prevent compaction.
Your generous 232.0-day season in Tuscaloosa County allows multiple plantings of Sweet Alyssum. Sow every 22.0 days for continuous harvest.
Common pests for Sweet Alyssum in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Surface-sow seeds — they need light to germinate. Direct-sow as soon as soil can be worked in spring; in zones 7+ also sow in fall. Thin to 6 inches apart. Shear back hard in midsummer when heat causes dormancy — plants recover and re-bloom when cool weather returns. Self-seeds prolifically; allow a few plants to set seed for a perpetual colony.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Sweet Alyssum in Other Locations
Frequently Asked Questions
When should I plant Sweet Alyssum in Tuscaloosa County, AL?
Tuscaloosa County is in Zone 8b with an average last frost of March 22. Plan your Sweet Alyssum planting based on this frost date — see the calendar above for exact timing.
What planting zone is Tuscaloosa County, AL?
Tuscaloosa County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 22 and first fall frost is November 9.
When should I plant Sweet Alyssum in Tuscaloosa County County, ?
In Tuscaloosa County County, , plant Sweet Alyssum after the last frost (around March 22) and before the first frost (around November 9). Best results when soil holds above 50°F.
What growing zone is Tuscaloosa County County, for Sweet Alyssum?
Tuscaloosa County County sits in USDA Zone 8b. Sweet Alyssum grows reliably in zones 3a through 11b, so it's a good fit here.
Can Sweet Alyssum grow in Tuscaloosa County County's climate?
Yes — Sweet Alyssum grows well in Tuscaloosa County County's temperate climate. Tuscaloosa County County averages a 232-day frost-free season, with last frost around March 22 and first frost around November 9.
Your Tuscaloosa County Garden Planner — Free
A 22-page printable planner built for Tuscaloosa 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.