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When to plant Crocus in Marshall County County,

Marshall County County's spring Crocus window runs mid-spring through late spring. most warm-season crops establish quickly once soil holds above 60°F. A second sowing from September 26 to October 10 extends the harvest into fall.

When to Plant Crocus in Marshall County, MS

Marshall County, Mississippi Zone 7b June

This month in Marshall County, Mississippi

Welcome to June in Zone 7b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 27
Avg. first frost October 31
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.3 hrs

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Crocuses (Crocus spp.) are the heralds of spring — small, gem-like blooms that push up through frozen ground or even snow, often weeks before any other flower. Their compact corms naturalize readily in lawns, rock gardens, and borders, creating drifts of purple, white, and yellow that expand year after year. Bees prize early crocus as one of their first nectar and pollen sources of the season. The saffron crocus (C. sativus) blooms in fall and yields the world's most expensive spice.

Marshall County, Mississippi is in USDA Zone 7b. The average last spring frost is March 27 and the first fall frost is October 31, giving you a growing season of approximately 218 days.

At an elevation of 255 feet, Marshall County receives approximately 52.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Crocus during the growing season. Clay soil retains moisture well for Crocus, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crocus root diseases.

Bulb Blooms in Spring Pollinator-friendly Fragrant
Marshall County, MS (Zone 7b) Long season
218 days
Last Spring Frost March 27
218 growing days
First Fall Frost October 31

Marshall County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.3

Drainage

Well Drained

Crocus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (235 days to spare)
Transplant: Mar 20 🌸 Bloom: Feb 13 – Mar 6
Recommended (50%) ✓ Fits season (232 days to spare)
Transplant: Mar 27 🌸 Bloom: Feb 20 – Mar 13
Safe Start (90%) ✓ Fits season (236 days to spare)
Transplant: Apr 15 🌸 Bloom: Mar 11 – Apr 1

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 Marshall County

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

Soil pH

Your soil pH (5.6–6.3) is more acidic than Crocus prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Crocus.

How to Plant Crocus

4"
Planting Depth
3"
Between Plants
4"
Between Rows

Fall planting: Sow 5 weeks before your first frost date for a fall harvest.

Succession Planting Crocus

27
successive plantings in your 218-day season

Sow every 1.1 weeks. Last sowing by Oct 11 to harvest before frost.

For a dedicated fall crop, sow by Sep 26.

Crocus Water Budget

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

Monthly Watering Guide for Crocus

Crocus 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 Crocus Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 2.2" 4.9" 0" ✅ Rainfall sufficient
Apr 2.2" 3.7" 0" ✅ Rainfall sufficient
May 2.2" 4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.1" 0" ✅ Rainfall sufficient
Jul 2.2" 5.1" 0" ✅ Rainfall sufficient
Aug 2.2" 5.6" 0" ✅ Rainfall sufficient
Sep 2.2" 4.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.1" 0" ✅ Rainfall sufficient
Nov 3.9" 0" ❄️ Dormant
Dec 4.2" 0" ❄️ Dormant

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

Crocus 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.

Crocus needs ~296 GDD — county provides 4,305 GDD Excellent fit

Crocus Planting Timeline — Marshall County, MS

Crocus Planting Calendar

Activity When Date Range
Bloom August 22 Aug 22 – Sep 12
Fall Sowing September 26 Sep 26 – Oct 10

Plant 4" deep · 3" apart · Rows 4" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

10–20 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

218 days in Marshall County

Growing Tips for Crocus in Marshall County

Direct sow Crocus outdoors after March 27 in Marshall County when soil has warmed and frost danger has passed.

With Marshall County's clay soil (34% clay), work in 3-4 inches of compost before planting Crocus. Avoid tilling when soil is wet to prevent compaction.

Your generous 218.0-day season in Marshall County allows multiple plantings of Crocus. Sow every 5.0 days for continuous harvest.

General growing tips

Plant corms 3–4 inches deep and 2–3 inches apart in fall, when soil temperature drops below 60°F. Mass plantings (at least 25 corms per cluster) create the most visual impact. Plant in well-drained soil — corms rot in standing water. Crocus naturalize well under deciduous trees; the tree leafs out after crocus dormancy begins, so light competition is minimal. Squirrels and chipmunks dig corms — plant deeper (4 inches) or use wire mesh baskets in high-predation areas. Allow foliage to die back naturally before mowing lawns. In zones 8a–8b, plant in December with pre-chilled corms for best results.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crocus in Marshall County, MS?

Marshall County is in Zone 7b with an average last frost of March 27. Plan your Crocus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Marshall County, MS?

Marshall County, Mississippi is in USDA Hardiness Zone 7b. The average last spring frost is March 27 and first fall frost is October 31.

When should I plant Crocus in Marshall County County, ?

In Marshall County County, , plant Crocus after the last frost (around March 27) and before the first frost (around October 31). Best results when soil holds above 50°F.

What growing zone is Marshall County County, for Crocus?

Marshall County County sits in USDA Zone 7b. Crocus grows reliably in zones 3a through 8b, so it's a good fit here.

Can Crocus grow in Marshall County County's climate?

Yes — Crocus grows well in Marshall County County's temperate climate. Marshall County County averages a 218-day frost-free season, with last frost around March 27 and first frost around October 31.

🌱

Your Marshall County Garden Planner — Free

A 22-page printable planner built for Marshall County (Zone 7b). 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 Marshall County, MS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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