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When to Plant Crocus in Red River County, TX

Red River County, Texas Zone 8a June

June in Red River County, Texas — your action list

Each item below is timed to Red River County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 18
Avg. first frost November 11
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14.2 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.

Red River County, Texas is in USDA Zone 8a. The average last spring frost is March 18 and the first fall frost is November 11, giving you a growing season of approximately 238 days.

At an elevation of 314 feet, Red River County receives approximately 60.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Crocus during the growing season. Sandy soil warms quickly in spring — great for early planting — but Crocus will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crocus root diseases.

Bulb Blooms in Spring Pollinator-friendly Fragrant
Red River County, TX (Zone 8a) Long season
238 days
Last Spring Frost March 18
238 growing days
First Fall Frost November 11

Red River County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.2

Drainage

Well Drained

Crocus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (246 days to spare)
Transplant: Mar 8 🌸 Bloom: Feb 8 – Mar 1
Recommended (50%) ✓ Fits season (245 days to spare)
Transplant: Mar 18 🌸 Bloom: Feb 18 – Mar 11
Safe Start (90%) ✓ Fits season (240 days to spare)
Transplant: Apr 8 🌸 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 Red River County

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

Soil pH

Your soil pH (5.4–6.2) is more acidic than Crocus prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Crocus.

How to Plant Crocus

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

Fall planting: Sow 4 weeks before your first frost date for a fall harvest.

Succession Planting Crocus

29
successive plantings in your 238-day season

Sow every 1.1 weeks. Last sowing by Oct 22 to harvest before frost.

For a dedicated fall crop, sow by Oct 14.

Crocus Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/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 1.4" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 2.2" 4.2" 0" ✅ Rainfall sufficient
Apr 2.2" 6" 0" ✅ Rainfall sufficient
May 2.2" 9.8" 0" ✅ Rainfall sufficient
Jun 2.2" 8.6" 0" ✅ Rainfall sufficient
Jul 2.2" 8.6" 0" ✅ Rainfall sufficient
Aug 2.2" 8" 0" ✅ Rainfall sufficient
Sep 2.2" 5.1" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 1.8" 0.4" 💧 Light watering
Dec 1.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Red River 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 ~274 GDD — county provides 4,343 GDD Excellent fit

Crocus Planting Timeline — Red River County, TX

Crocus Planting Calendar

Activity When Date Range
Bloom September 16 Sep 16 – Oct 7
Fall Sowing October 14 Oct 14 – Oct 28

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May
June
July
August
September Bloom
October Fall Sowing Bloom
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 8a

📆 Growing Season

238 days in Red River County

Growing Tips for Crocus in Red River County

Direct sow Crocus outdoors after March 18 in Red River County when soil has warmed and frost danger has passed.

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

Your generous 238.0-day season in Red River 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 Red River County, TX?

Red River County is in Zone 8a with an average last frost of March 18. Plan your Crocus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Red River County, TX?

Red River County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 18 and first fall frost is November 11.

🌱

Your Red River County Garden Planner — Free

A 22-page printable planner built for Red River County (Zone 8a). 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 Red River County, TX. 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.